Weighing systems
Electronic weighing system
SIWAREX WT241
Manual
05/2015
A5E36046748A
Introduction
1
Safety guidelines
2
Description
3
Application planning
4
Installation
5
Connecting
6
Commissioning
7
Scale parameters and
functions of the belt scale
8
Messages
9
Command lists
10
Communication
11
Technical specifications
12
Accessories
13
ESD guidelines
B
List of abbreviations
C
Page 1: ...oduction 1 Safety guidelines 2 Description 3 Application planning 4 Installation 5 Connecting 6 Commissioning 7 Scale parameters and functions of the belt scale 8 Messages 9 Command lists 10 Communication 11 Technical specifications 12 Accessories 13 ESD guidelines B List of abbreviations C ...
Page 2: ...e operated only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING...
Page 3: ...5 2 EMC compliant setup 21 5 2 1 Introduction 21 5 2 2 Possible effects of interference 21 5 2 3 Coupling mechanisms 21 5 2 4 Five basic rules for securing EMC 21 6 Connecting 23 6 1 Overview 23 6 2 Connecting to main voltage 26 6 3 Connecting the load cells 28 6 3 1 Connection of an MLC MBS MUS MCS MSI MMI belt scale to WP241 30 6 3 2 Connection of any scales or load cells 32 6 4 Shield connectio...
Page 4: ... 4 Menu 1 2 Calibration 65 8 5 Menu 1 3 Limits 65 8 6 Menu 1 4 Additional parameters 66 8 7 Menu 1 5 Communication interfaces 68 8 8 Menu 1 6 Recovery reset 72 8 9 Menu 2 1 Messages 72 8 10 Menu 2 2 Scale status 73 8 11 Menu 2 3 Flow trend 76 8 12 Menu 2 4 Module information 76 8 13 Menu 2 5 Start stop trace 77 8 14 Menu 3 0 Language Date Time 77 8 15 Menu 4 0 Totalizers 77 8 16 Menu 5 0 User mana...
Page 5: ...11 4 15 Belt load factor for speed correction 105 11 4 16 Impulse constant speed sensor 105 11 4 17 Initial zero calibration digits 105 11 4 18 Calibration weight 106 11 4 19 Calibration load 106 11 4 20 Calibration quantity 106 11 4 21 Span calibration digits 106 11 4 22 Simulation mode 106 11 4 23 Warm up timer 107 11 4 24 Interface for the legal trade display 107 11 4 25 Software version for HM...
Page 6: ...t digital input DI 0 1 2 3 128 11 10 2 Input filtering hardware setting 128 11 10 3 Assignment digital output DQ 0 1 2 3 128 11 10 4 Response of digital outputs to faults or SIMATIC STOP 129 11 10 5 Substitute value for DQ 0 1 2 3 following fault or SIMATIC STOP 129 11 10 6 Analog output range 130 11 10 7 Analog output source 130 11 10 8 Response of analog output to faults or SIMATIC STOP 130 11 1...
Page 7: ...r 152 11 23 DR 30 Process state 153 11 23 1 Current weight 155 11 23 2 Current belt load 156 11 23 3 Current belt load in 156 11 23 4 Current flow rate 156 11 23 5 Current flow rate in 156 11 23 6 Current speed 156 11 23 7 Current speed in 156 11 23 8 Current master totalizer S1 156 11 23 9 Current main totalizer S2 156 11 23 10 Refresh counter for process values 157 11 24 DR 31 Process state exte...
Page 8: ... 4 S4 totalizer 5 S5 165 11 26 4 Totalizer 6 S6 165 11 27 DR 34 ASCII main display value 166 11 27 1 Content of main display as ASCII string 166 11 28 DR 38 Process state extended 168 11 29 DR 48 Date and time 2 170 12 Technical specifications 171 12 1 Technical specifications 171 12 2 Electrical EMC and climatic requirements 176 12 3 Approvals 179 13 Accessories 181 B 1 ESD Guidelines 183 C 1 Lis...
Page 9: ...nowledge required This manual requires basic knowledge of weighing technology and of belt scales specifically 1 3 Manual range of validity This manual is valid for Type designation Order No as of version version HMI project SIWAREX WT241 7MH4965 4AA01 HW V 1 FW V 1 0 1 V 1 0 4 Note This manual contains a description of all electronic weighing systems available at the date of publication We reserve...
Page 10: ...port http www siemens com automation service support There you will find The latest product information FAQs downloads tips and tricks Our newsletter providing you with the latest information about your products A Knowledge Manager to find the right documents for you Our bulletin board where users and specialists share their knowledge worldwide You can find your local contact partner for Industry ...
Page 11: ...Introduction 1 4 Technical support SIWAREX WT241 Manual 05 2015 A5E36046748A 11 See also E mail mailto support automation siemens com ...
Page 12: ......
Page 13: ...ds being valid for your country and or other applicable regulations Since the cable is partly located within the product consider also the product safety standard IEC EN 61010 1 and the local release respectively WARNING High voltage Switch off the machine so that it is in a no voltage condition before you open the terminal box WARNING Handling of the device system by persons other than qualified ...
Page 14: ... that support the secure operation of plants or machines They are an important component in a holistic industrial security concept With this in mind our products undergo continuous development We therefore recommend that you keep yourself informed with respect to our product updates Detailed technical information can be found at http support automation siemens com http www siemens de automation cs...
Page 15: ... uses all features of a modern automation system such as integrated communication operation and monitoring the diagnostic system and an up to date user interface 3 2 Area of application The electronic weighing system described here is the perfect solution where material flows are to be acquired and processed with the assistance of a belt scale The SIWAREX WT241 is a very accurate electronic weighi...
Page 16: ...essary to operate an industrial scale Figure 3 1 SIWAREX WT241 weighing terminal The terminal consists of following components Weighing electronic SIWAREX WP241 Touchpanel SIMATIC KTP400 basic color PN Power supply Terminal board for belt scale speed sensor and analog output Stainless steel enclosure 1 4301 with o M16 cable gland for mains cable o 3 M16 1 M20 cable gland for load cell connection a...
Page 17: ... input o 4 x digital output o RS485 Measuring of weight with a resolution of 1 million parts High measuring rate of 100 120 Hz effective interference frequency suppression Monitoring of a wide range of limits material flow rate speed load Flexible adaptation to varying requirements Exact determination of speed with or without encoder Diagnostics functions 3 5 Scope of delivery The scope of deliver...
Page 18: ......
Page 19: ...tion of the current flow rate The SIWAREX WT241 is calibrated at the factory This allows for automatic calibration of the scales without the need for calibration weights and replacement of modules without the need for recalibrating the scales Further the SIWAREX WT241 can be connected to any control system or to a PC by using the Modbus RTU protocol ...
Page 20: ...ng electronic SIWAREX WT241 is equipped with 4 lugs on the backside of the product These can be used for fastening the device at a wall Please consider material and condition of the wall when choosing the mounting equipment The lugs holes shall be used with M5 screws Figure 5 1 SIWAREX WT241 weighing terminal dimensions and hole pattern ...
Page 21: ... way 5 2 2 Possible effects of interference Electromagnetic interferences can influence the electronic weighing system described here in various ways Electromagnetic fields having a direct influence on the system Interferences transported by communication cables Interferences having an effect via process cables Interferences entering the system via the power supply and or protective ground Interfe...
Page 22: ...ways route high voltage and data cables in separate ducts or in separate bundles Install the measurement cables as close as possible to grounded surfaces e g supporting beans metal rails steel cabinet walls Rule 3 Fixing the cable shielding Ensure proper fixation of the cable shielding Always use shielded data cables Always connect both ends of the data cable shielding to ground on a large area Ke...
Page 23: ...e you open the terminal box 6 1 Overview The weighing terminal SIWAREX WT241 comes with a number of connection options It is equipped with EMC safe cable glands for the major connections mains and load cells Figure 6 1 SIWAREX WT241 overview Stainless steel enclosure SIMATIC KTP400 basic color PN color touch display Fastening screws Lugs for wall fastening Connection area ...
Page 24: ...at bottom side Figure 6 2 SIWAREX WT241 bottom side with connections M16 cable gland for mains cable Earthing bolt M16 and M20 cable glands for load cells Through holes equipped with dummy plugs for further connections Connections inside the terminal Figure 6 3 SIWAREX WT241 inside ...
Page 25: ...748A 25 Mains connection Terminal board to connect load cells belt scale analog output speed sensor Connections to SIWAREX WP241 premounted to Upper terminal block SIWAREX WP241 premounted to Lower terminal block SIWAREX WP241 Digital inputs digital outputs RS485 ...
Page 26: ...al in effect for you country WARNING High voltage The mains cable which has to be installed by end user may be damaged due to non qualified handling Before commissioning the system conduct a visual inspection and an inspection of the protective earth conductor Consider the specific safety standards being valid for your country and or other applicable regulations Since the cable is partly located w...
Page 27: ...ins voltage to the premounted power supply unit in the device Use clamps no 1 2 and 3 for connecting the mains voltage Figure 6 4 SIWAREX WT241 power supply Marking Type Function 1 Input Clamp for 100 240 VAC 50 60Hz L 2 Input Clamp for neutral wire 3 Input Clamp for PE 4 Output 24V ground 5 Output 24V ...
Page 28: ...teristic value 1 to 4 mV V A supply voltage of 5 V is permitted Maximum cable length between WT241 and junction box 1 000 m The power supply for the load cells is 4 85 V The following condition must be satisfied in order to check the maximum possible number of load cells which can be connected to a WT241 Scale operation without Ex interface input resistance of load cell number of load cells 40 Ohm...
Page 29: ... shield is always applied at the cable gland of the junction box SIWAREX JB If there is a risk of equipotential bonding through the cable shield connect an equipotential bonding conductor parallel to the load cell cable 3 Twisted wire pairs that are also shielded are required for the specified cables Sensor cable and Measuring voltage cable and Supply voltage cable and Figure 6 5 Shielding in the ...
Page 30: ...tional load cells are connected in parallel in the junction box as shown in the graphic All load cells must always be connected in parallel in the junction box With 4 wire load cells you must additionally set a jumper between EXC and SEN and between EXC and SEN in the junction box With 6 wire load cells the jumpers are omitted and all conductors of the same type are connected in parallel in the ju...
Page 31: ...Connecting 6 3 Connecting the load cells SIWAREX WT241 Manual 05 2015 A5E36046748A 31 Figure 6 7 Connecting a Siemens beltscale MMI 2 to SIWAREX WT241 ...
Page 32: ... are mounted each for connecting one load cell to it The terminal blocks are marked LC_A LC_B LC_C and LC_D Figure 6 8 Terminal board SIWAREX WT241 Terminal blocks for load cells belt scale pickup Terminal block for analog output 24 VDC tap Terminal block for speed sensors Selection and order of the chosen load cell terminals is not relevant for function In case you are using a single load cell or...
Page 33: ...nt cable load cell Sig Measurement cable load cell Sen Sensor cable load cell Sen Sensor cable load cell Exc Supply load cell Exc Supply load cell Connect strain gauge load cells with 6 wires Figure 6 9 Connection of strain gauge load cell s with 6 wire system Load cell Load cell shield Cable glands shield connection SIWAREX WT2X1 weighing terminal Earthing bolt ...
Page 34: ...ring diagram to the weighing electronic Figure 6 10 Connection of strain gauge load cell s with 4 wire system Load cell Load cell shield Cable glands shield connection SIWAREX WT2X1 weighing terminal Earthing bolt Bridge wires 2 Add wire bridges between the pins EXC and SEN as well between EXC and SEN The electronic will report a load cell error in case the bridge wires have not been set ...
Page 35: ... isolation rails To avoid interference as a result of these currents it is imperative to provide a low impedance connection to the ground Use only cables with protective braided shield see recommended cables of load cells in chapter Accessories Page 181 Shielding density must be at least 80 The SIWAREX WT241 is equipped with EMC safe cable glands Follow the instruction below for proper connected s...
Page 36: ...gital outputs They can be directly found at the weighing module SIWAREX WP241 and are not connected through to the terminal board They are not permanently assigned to process values in the delivery state Assignment of these digital outputs to functions as well as definition of the response in the event of a fault is carried out during commissioning via menu 1 5 1 Digital In Outputs The 24 V power ...
Page 37: ...he digital inputs are not permanently assigned to commands in the delivery state Assignment of the digital inputs to commands is carried out during commissioning by parameter assignment in menu 1 5 1 Digital in and outputs The external 24 V switching signal is connected electrically isolated to the desired input the associated ground to terminal 2M When using a speed sensor it is essential to conn...
Page 38: ...uring commissioning in Menu 1 5 2 Analogue Output Table 6 5 Connection of analog output Labeling Function AQ Analog output AQ Analog output 6 8 Connection of RS485 serial interface The following devices can be connected to the serial interface Operator Panels or other HMI devices with RS485 and Modbus protocol RTU Communication partner with Modbus protocol RTU RS485 connection is established direc...
Page 39: ...in data record 7 during commissioning The DI 0 can be found on the PCB board in the connection area Connection of the various Siemens speed sensors is shown below A wide range of pulse sensors can be used up to a clock frequency of 5 000 Hz A level of at least 15 V DC is required for the High signal The Low signal is reached at a voltage of 5 V DC Detailed information on the various sensors can be...
Page 40: ...Connecting 6 9 Connection of a speed sensor SIWAREX WT241 40 Manual 05 2015 A5E36046748A 6 9 2 TASS speed sensor on WT241 Figure 6 12 TASS speed sensor on WT241 ...
Page 41: ...Connecting 6 9 Connection of a speed sensor SIWAREX WT241 Manual 05 2015 A5E36046748A 41 6 9 3 WS300 speed sensor on WT241 Figure 6 13 WS300 speed sensor on WT241 ...
Page 42: ......
Page 43: ...oncerning the correct mechanical design of a belt scale can be found in the respective manuals These manuals are available online as downloads Manuals for belt scales http support automation siemens com WW view de 18235463 133300 7 2 Factory set parameters The electronic weighing system described here is provided with factory set parameters Parameters which can be entered in or time are preset in ...
Page 44: ...or starting up the scale The remaining parameters are factory set in such a way that they can be used in most cases without any changes Figure 7 1 Main menu In the next step select the item 1 1 Basic parameters and then press the Switch on service mode button in the screen which subsequently appears The square in the top right corner is then colored yellow Service mode ON You can subsequently use ...
Page 45: ... length exactly Decide in the next step on a speed detection method matching your system The number of belt revolutions is important for dynamic commands such as zeroing If the parameter is set to 2 for example the electronics averages the load cell signal over two complete revolutions and only then carries out the actual calibration zero setting command The Warm up time parameter is specified in ...
Page 46: ...peed sensor or pulse encoder is usually noted in the technical data sheet of the respective sensor If kg m was selected for the belt load you must specify the pulse constant in Pulses per meter If the belt load is displayed in lbs ft you must specify the pulse constant in Pulses per foot If the sensor is mounted on the axis of a guide pulley use the following equation to calculate the pulse consta...
Page 47: ...nknown pulse constants on the condition that the total belt length is specified exactly As an alternative to the belt marking and manual sending of commands you can connect a belt revolution sensor e g a proximity switch to digital input DI 1 When assigning the parameters for the digital inputs you must then assign the Trigger belt revolution recording function to DI 1 Pulses are then counted at i...
Page 48: ... belt empty parameter Leave the two parameters Belt speed correction belt loaded und Belt load factor for speed correction at 100 Save all settings by clicking the diskette symbol Activate the specified speed using one of the three options by means of the external Set Belt is running command Via a correspondingly parameterized digital input Via an external controller From the operator panel menu 1...
Page 49: ...he specified speed using one of the three options by means of the external Set Belt is running command Via a correspondingly parameterized digital input Via an external controller From the operator panel menu 1 4 5 You can reset the speed to zero again using the Reset Belt is running command As an alternative to the belt marking and manual sending of commands you can connect a belt revolution sens...
Page 50: ...r with the determined nominal speed Determination of current belt speed belt empty Page 49 then form a characteristic Figure 7 8 Speed characteristic without sensor Prerequisites for determination of the characteristic are Speed calculation has been carried out with empty belt Successful zero calibration Successful span calibration If these conditions have been fulfilled move on to menu item 1 2 1...
Page 51: ...ning the parameters for the digital inputs you must then assign the Trigger belt revolution recording function to DI 1 Pulses are then counted at input DI 1 according to the parameterized number of belt revolutions and an exact trigger point is thus achieved 7 3 2 4 External specification of a speed If the actual belt speed is available externally e g in a CPU you can send this to the scale using ...
Page 52: ...calibration running appears The procedure is stopped automatically following the defined number of belt revolutions and the new zero digits are displayed 3 Import these using the Apply new zero digits button Following importing of the new zero point the actual belt load is displayed as 0 0 kg m or 0 0 lbs ft Subsequently move on in the calibration menu to item 1 2 3 Span calibration Span calibrati...
Page 53: ...eviation from the previously used calibration digits if applicable 4 Import these values using the Apply new span digits button Commissioning has then been completed Additional parameter settings can also be made for example Setting of limits for belt load speed and material flow rate Filter settings Parameterization of the inputs outputs of your weighing module Further information on these and al...
Page 54: ...libration procedure using Start calibration The procedure is automatically terminated following the set number of belt revolutions The new span digits are then displayed in the right hand column as well as the percentage deviation from the previously used calibration digits if applicable 4 Import the newly determined digits using the Apply new span digits button The belt load shown at the top of t...
Page 55: ...7 13 Span by material batch 1 If you wish to convey a known amount of material enter this in the Conveyed amount of material field Alternatively you can also enter the amount of material following conveyance 2 Make sure that the belt is running and empty 3 Start the calibration procedure using Start calibration Allow the material to be conveyed on the belt 4 When the complete amount of material ha...
Page 56: ...material test Determination of a correction factor Page 57 7 3 2 10 Automatic span calibration By entering the technical specifications of the used load cells you can automatically carry out the span calibration without using weights or material Navigate in the span calibration menu to item 1 2 3 4 Automatic span by load cell data Figure 7 14 Automatic span calibration A prerequisite for this step...
Page 57: ...our weighing module Further information on these and all other parameters can be found in chapter Scale parameters and functions of the belt scale Page 59 You can return to the main screen using the Home button house symbol You can improve the results for your system even further following completion of the calibration or also during subsequent operation by means of a flow correction by material t...
Page 58: ...e the integrated calculator for the calculation by selecting the next input form using the Calculator button First enter the two values there in the input fields and then read the result by clicking on the Divide symbol 5 Enter the determined correction factor in the Correction factor 1 field 6 Additionally enter the observed value of the Current load in in the input field next to Belt load factor...
Page 59: ...imit Setting in 1 3 1 Limits 1 2 Go to menu 2 0 Diagnostics LOAD Limit belt load Yellow if current rate below min imum limit Red if current rate above maxi mum limit Setting in 1 3 1 Limits 1 2 Zeroing SPEED Limit belt speed Yellow if current rate below min imum limit Red if current rate above maxi mum limit Setting in 1 3 1 Limits 1 2 Main totalilzer ZERO RANGE Belt load within range of zero offs...
Page 60: ...46748A 8 1 1 Dynamic status in operating view The operating view supports you with dynamic visualized status information regarding flow rate belt load and belt speed Scale is working within it s settings Flow rate is above maximum limit see menu 1 3 1 Limits 1 2 Flow rate is below minimum limit see menu 1 3 1 Limits 1 2 ...
Page 61: ... SIWAREX WT241 Manual 05 2015 A5E36046748A 61 Belt speed is above maximum limit see menu 1 3 1 Limits 1 2 Belt speed is below minimum limit see menu 1 3 1 Limits 1 2 Belt load is above maximum limit see menu 1 3 1 Limits 1 2 Belt load is below minimum limit see menu 1 3 1 Limits 1 2 ...
Page 62: ...ion page 65 1 3 Limits page 65 1 4 Additional parameters page 66 1 5 Communication interfaces page 68 1 6 Recovery Reset page 72 2 0 Diagnostics 2 1 Messages page 72 2 2 Scale status page 73 2 3 Flow trend page 76 2 4 Module information page 76 2 5 Start stop trace page 77 3 0 Language Date Time page 77 4 0 Totalizers page 77 5 0 User Management only if password protection activated page 79 ...
Page 63: ...tric 2 T h imperial 3 TL h imperial 4 lbs h imperial Resolution of belt load The resolution for the weight measurement and the belt load per length unit can be defined in accordance with the standard EN 45501 1 10 k 2 10 k 5 10 k k 3 2 from 0 0001 to 50 Resolution of flow rate totalizers S2 S6 The resolution for the material flow rate and totalizers 2 to 6 can be de fined in accordance with the st...
Page 64: ... addition to the design speed A load dependent charac teristic for the speed then results together with the design speed This characteristic is determined by two working points Design speed with empty belt and a speed factor correction with a certain belt load factor The specification is made in of the design speed Load factor for speed correction The associated belt load factor in of nominal load...
Page 65: ...The specification is made in of the nominal belt speed which was specified during commissioning or calculated Violation of the limits for the belt speed is delayed by the specified time The specification is made in ms Flow rate Dropping below the minimum flow rate is displayed in the status area of the scale The specification is made in of the design flow rate Exceeding the maximum flow rate is di...
Page 66: ... not wanted chose suppress message for the applicable message 2000 Technological message Group message at least one technology error exists 2002 Trace over loaded The set recording rate for trace function cannot be processed Set a slower recording rate 2003 Zero setting aborted The zeroing procedure has been canceled Possible causes violation of zeroing limits 3001 Totalizers disturbed Fault occur...
Page 67: ... filter when fg 2 Hz The definition of the cut off frequency is extremely important for suppress ing interferences Defining the cut off frequency defines the speed of the scale s response to changes in the measured value A value of 5 Hz for example results in a relatively rapid response to a change in weight a val ue of 0 5 Hz makes the scale slower The weighing system offers following filters Bel...
Page 68: ...nd the newest value included in the calculation 1 4 5 Belt commands In case of working without speed sensor but using a known belt speed the command Belt is running must be setted in order to operate the scale see 7 3 2 1 Specification of a known constant belt speed pg 48 8 7 Menu 1 5 Communication interfaces 1 5 1 Digital in and outputs Parameterize the digital in and outputs Input DI 0 DI 3 Assi...
Page 69: ...eed Belt load Flow rate Test force output Start value 0 4mA This parameter defines the specified value at which 0 or 4 mA is output The value can be greater or less than the end value End value 20mA This parameter defines the specified value at which 20 mA is output The value can be greater or less than the start value State by error or stop This parameter defines the response of the analog output...
Page 70: ...41 Trace rate The trace function is used for the continuous recording of measured val ues The recording rate is defined with the parameter The following values can be set Recording every 10 ms Recording every 100 ms Recording every second Recording every 10 s Memory type This parameter is used to specify the response of the trace memory The following values can be set Trace recording runs as circu...
Page 71: ...ication via the RS485 interface with the Modbus protocol 1 5 8 Ethernet settings This menu shows the ethernet parameters of the weighing electronic These values cannot be changed Device MAC address MAC address of the weighing module IP address IP address of the weighing module Default is 192 168 0 21 1 5 9 Simulation In case the simulation mode is activated menu 1 1 2 Basic parameters 2 2 menu 1 5...
Page 72: ...e current settings Create recovery point Creates an image of all settings Execution will not be acknowledged Load recovery point Loads the latest created image Execution will not be acknowledged Load standard scale parameter Like Load factory settings but interface settings for Ethernet and Mod bus RTU are not reset to the factory setting Load factory set tings The command resets the SIWAREX to th...
Page 73: ...cess values of the beltscale Flow rate The current material flow rate belt load x speed Belt speed The current material weight of the loaded belt acting on one unit of the weigh length Belt load The current material weight of the loaded belt acting on one unit of the weigh length 2 2 2 Scale status 2 of 5 Shows the current status of digital in and outputs as well as of the analog output Load cell ...
Page 74: ...in case minimum speed is exceeded Belt load Min belt load Set in case minimum belt load is underrun Belt load max belt load Set in case maximum belt load is exceeded Zero range Set in case belt load is within zero range Zero setting active Set in case automatic zeroing is active Automatic zero tracking enabled Set in case automatic zero tracking is enabled Totalizers active Set in case totalizers ...
Page 75: ...alibration procedure acti ve Set in case calibration has been started Write protection active Write protection is active Error analog output Analogue output is disturbed Warm up time Warm up time after power on is running Start up Weighing electronic is starting up or restoring of recovery point was done Will be reset after 5 seconds System fault System is disturbed 2 2 4 Scale status 5 of 5 Furth...
Page 76: ...minal belt load No of zero settings Number of zero settings combines manual and automatic zero settings Will be reset with restoring the default values 8 11 Menu 2 3 Flow trend The flow trend is a graphical presentation of the flow rate The graph will be scaled automatically based on the given values 8 12 Menu 2 4 Module information 2 4 1 Modul information General information about the SIWAREX WT2...
Page 77: ...by the weighing electronic by using a capacitor The buffering time is ca 8 days In case the time and date settings has been lost e g due to a voltage breakdown the status Clock error in menu 2 2 4 Scale status 4 of 5 will be set Time needs to be reset in menu 3 0 or via input by a PLC system 8 15 Menu 4 0 Totalizers Overview and control options of all 6 totalizers Master totalizer S1 This totalize...
Page 78: ... this totalizer by pressing the Reset button to the right Enable totalizers F2 Activate all totalizers Totalizer S6 will work independently Disable totalizers F3 Deactivates all totalizers Totalizer S6 will continue to sum Minimum belt load for total izing Is green as long as the minimum belt load for totalizing is given or exceeded ...
Page 79: ...side of the weighing module SIWAREX WP241 just next to the Ethernet port accessible via the air inlet Figure 8 4 DIP switches at SIWAREX WP241weighing module Position of DIP switch password protection operation mode Top Password protection deactivated Operating in SIMATIC Bottom Password protection activated Operating stand alone As default both switches are located in the lower position so that t...
Page 80: ...m damage it will turn on a screen saver automatically after 30 minutes without input The delay time for switching on the screen saver can be chosen from 5 minutes to 360 minutes Start up the WT241 Before loading the UI the buttons Transfer Start and Control Panel are visible for five seconds Choose Control Panel to call up the system settings of the touch panel Under Screensaver the delay time can...
Page 81: ...d operating errors are always a response to a command due to a plausibility check These are data errors if a plausibility error has been detected in a data packet which was sent to the module and receipt of the packet has been rejected by the module These are operating errors if the module cannot execute the sent command in its current operating state Technology errors Technology errors occur spon...
Page 82: ...g configuration The messages are processed for two basic purposes For display on an Operator Panel for the operator For linking in the control software to control specific reactions in the process The following message paths are possible Output of the message buffer to the SIWATOOL program takes place automatically Output by means of data records DR 30 and DR 32 in case of communication with a Mod...
Page 83: ...re no longer safe 1004 Checksum incorrect program 1004 Checksum error program code Critical error because the program is no longer safe 1006 logbook error 1006 Error when writing deleting or logbook full 1102 ADU error 1102 AD converter error when reading in the measured value If the error occurs again make sure that the EMC recommen dations are observed chapter EMC compliant setup Page 20 1104 Un...
Page 84: ...mmand can currently not be executed because of a prob lem or SIMATIC CPU stop 5104 Command not possible because range is exceeded 5104 Command e g set to zero tare calibrate command cannot be executed because the permitted range has been exceed ed The ranges are defined in DR 3 5105 Load cell parameters not plausible 5105 Load cell parameters in data record DR 10 are not plausible number support p...
Page 85: ... parameters 7011 Specification of filter parameters is not plausible 7013 Interface assignment for calibratable HMI not plausible 7013 The assignment of the interface to the calibratable HMI is incorrect 7014 Specified time not plausible 7014 Specified time value is not plausible or may be signaled in connection with additional errors 7016 Parameter assignment of analog output not plausible 7016 T...
Page 86: ......
Page 87: ...error is signaled if a command cannot be executed or if the sent data record is rejected Detailed descriptions of the commands can be found in the following command lists Table 10 1 Commands 1 99 Service commands Page 88 Table 10 2 Commands 450 499 Trace commands Page 90 Table 10 3 Commands 700 899 HMI display switchover DR34 ASCII display Page 90 Table 10 4 Commands 1000 Basic functions for weigh...
Page 88: ...e reset 12 Load standard parameters Like Load factory settings command code 11 but interface settings for Ethernet and Modbus RTU are not reset to the factory setting 31 Load restore point All parameters saved in the restore point are activated 51 Create restore point Saves the parameters of the restore point to the memory 60 Start initial zero calibration Start initial zero calibration The zero p...
Page 89: ...he speed measurement with the belt loaded preferably with nominal belt load The command should be sent at the moment when a belt marking passes a defined point 73 Stop speed measurement belt loaded The command can be used in the case of belt scales without speed sensor in order to stop the speed measurement with the belt loaded preferably with nominal belt load The command should be sent at the mo...
Page 90: ...eased resolution Enable increased resolution on the main display and the SecureDisplay x 10 for duration of 5 s 715 Display weight Displays the weight currently present on the scale 735 Flow rate in Displays the current flow rate in of the design flow rate from DR3 740 Belt load Displays the current belt load 745 Belt load in Displays the current belt load in of the nominal belt load from DR31 760...
Page 91: ...and Description 2000 X Reading of a data record X corresponds to the data record number Starts the zeroing procedure Example Data record 3 transmitted by SIWAREX module to SIMATIC CPU 2000 3 command code 2003 4000 X Writing of a data record X corresponds to the data record number Aborts the zeroing procedure Example Data record 3 transmitted by SIMATIC CPU to the SIWAREX mod ule 4000 3 command cod...
Page 92: ......
Page 93: ...r messages 11 1 2 Principle of data transmission This description is valid for communication via Modbus RTU and Modbus TCP IP The standardized MODBUS protocol is used for communication The master function is always in the connected communication partner while the SIWAREX module is always the slave Data transfer is bidirectional The master function is always in the connected module which controls t...
Page 94: ...gisters 16 Write multiple registers If a request of the master is answered by the SIWAREX module slave the SIWAREX module sends a response frame with or without errors In the case of a response without error message the response frame contains the received function code in the case of errors the highest bit of the function code is set This corresponds to the Modbus standard Afterwards the master r...
Page 95: ...CMD2_CODE Code of command to be executed USHORT 920 CMD2_TRIGGER Trigger for starting the command USHORT 921 CMD2_STATUS 0 job running 1 job finished 1 cycle USHORT 922 CMD2_QUIT 0 no error 0 error code USHORT 923 Table 11 3 Command mailbox 3 Low priority Variable Note Type Modbus registers CMD3_CODE Code of command to be executed USHORT 930 CMD3_TRIGGER Trigger for starting the command USHORT 931...
Page 96: ...e complete data record must subsequently be written internally using an appropriate command A plausibility check of the complete data record is carried out in the process Example A parameter from DR 3 is to be written First write register CMD3_CODE with 2003 2000 plus the number of the data record Then write CMD3_TRIGGER with 1 The DR 3 is then updated in the Modbus memory You can now write or cha...
Page 97: ...le has to be adapted All parameters are divided into data records DR The data records are organized in steps tasks which constitute a functional unit during commissioning or during the process Data records can only be read or written as complete packages Reading or writing of a single parameter within a data record is therefore not possible It is therefore recommendable to proceed as follows befor...
Page 98: ...R 3 check all parameters and modify them if required Transfer the DR 3 data record from SIWATOOL SIMATIC Modbus to the scale Carry out parameterization or calibration of the belt speed Calibrate the scale Transfer the DR 3 data record from the scale to SIWATOOL A special feature distinguishes the WP241 module from other SIWAREX modules Every calibration command which results in a change in a param...
Page 99: ...10 k 2 10 k 5 10 k k 3 2 FLOAT 4 rw 0 1 1016 Resolution of master totalizer Page 103 Resolution 1 10 k 2 10 k 5 10 k k 3 2 FLOAT 4 rw 0 1 1018 Design flow rate Page 103 Customer input according to rated data FLOAT 4 rw 360 1020 Weigh length Page 103 FLOAT 4 rw 1 1022 Belt length Page 104 Is measured and entered by the user FLOAT 4 rw 30 1024 Number of belt revo lutions Page 104 Number of belt revo...
Page 100: ...ation quantity Page 106 Value input in KG or LB depending on selected unit for belt load FLOAT 4 rw 0 1044 Span calibration digits Page 106 ADC digits for test weight Value input or imported from DR4 LONG 4 rw 1000000 1046 Simulation mode Page 106 Simulation is enabled or disabled via commands 0 Simulation not permit ted 1 Only weight simulation permitted weight is im ported from DR16 if simu lati...
Page 101: ...8 Reserve USHORT 1 Parameter for calculation of calibration points 11 4 1 Scale name You can select any name but it may not exceed 12 characters You can enter any designation Note If the jumper is closed to protect data with verification capability the parameter can no longer be changed 11 4 2 Code for regulations Trade scales requiring verification are subject to certain restrictions available so...
Page 102: ...o protect data with verification capability the parameter can no longer be changed 11 4 4 Unit for flow rate The following units can be selected for the material flow rate 0 t h metric 1 kg h metric 2 T h imperial 3 TL h imperial 4 lbs h imperial Note If the jumper is closed to protect data with verification capability the parameter can no longer be changed 11 4 5 Resolution of weight and belt loa...
Page 103: ...ct data with verification capability the parameter can no longer be changed 11 4 8 Design flow rate The design flow rate is entered during initial commissioning It can be obtained from the data sheet for the belt scale It corresponds to the maximum material flow rate 100 for which the conveyor belt is designed The values for the material flow rate limits refer to the rated flow rate 11 4 9 Weigh l...
Page 104: ...sent Specification of a constant belt speed or determination of it 1 speed sensor at digital input DI 0 2 external specification of belt speed from CPU via DR19 Note If the jumper is closed to protect data with verification capability the parameter can no longer be changed 11 4 13 Design speed The design speed can be determined with the belt empty To this end the time for one or more belt revoluti...
Page 105: ...cted unit If the pulse constant is unknown it can be calculated automatically by the SIWAREX WP241 using an exactly defined total belt length Commands 70 and 71 are used for this purpose You will find more detailed information on using or determining the pulse constants in the section Commissioning with speed sensor Page 45 Note If the jumper is closed to protect data with verification capability ...
Page 106: ... belt loading unit in kg or lb You can calibrate the scale using the commands 67 Start 68 Stop 69 Calculate span calibration point and 89 Apply span calibration digits 11 4 21 Span calibration digits Following calibration of the loaded belt scale the digit value from the A D converter which corresponds to the calibration weight is stored as the average value for the set number of belt revolutions ...
Page 107: ...SecureDisplay via Ethernet 2 HMI SecureDisplay via S7 CPU 11 4 25 Software version for HMI SecureDisplay with verification capability This parameter is not yet effective since the function is in preparation The SecDisplay exe program is used for representation of the display with verification capability The software version must be entered when commissioning a trade scale requiring verification Th...
Page 108: ... belt load All results of the calibration are initially presented by the SIWAREX module in DR4 You can apply the results into the parameter set or reject them This guarantees that the individual calibration steps do not change the existing parameter set and become effective immediately When calibrating the scale you can switch off the totalizer using command 652 Stop totalizing All totalizers apar...
Page 109: ...tion 70 Terminate the measurement when the point is passed again if only one belt revolution is parameterized for the measurement using the command Stop speed pulse detection 71 The following parameters are calculated by SIWAREX as a result of the measurement and output in DR4 as a recommendation for acceptance When using a speed sensor Design speed Pulses per length unit Pulses per belt revolutio...
Page 110: ...peed parameters Calibration of the speed as described above is always recommended This guarantees maximum accuracy for the speed calculation and thus maximum accuracy of the complete system If it is not possible to calculate the speed or pulse constant you can also enter the data manually When using a speed sensor at DI 0 you must enter the following parameters manually DR3 design speed maximum sp...
Page 111: ...f the signal the zero point displayed weight 0 is assigned to the digital value calibration digits for the zero point The measurement is carried out with an empty running and warmed up belt At least one complete belt revolution is required The zero point of the scale is determined more accurately if several belt revolutions are used The command Start initial zero calibration 60 is triggered with t...
Page 112: ...n and the entered parameters The best scale accuracy can be achieved by calibrating with test weights or a test chain Following a certain period of operation you can define further correction factors for the material flow rate by means of a material test Requirements The following requirements must be fulfilled in order to achieve successful automatic calibration Proper installation and alignment ...
Page 113: ...arameterized number of belt revolutions using the command Start span calibration with test chain 65 The status display in DR30 indicates that the calibration is running The result is displayed in DR4 3 Import the working point into DR3 using the command Apply span calibration digits 89 The characteristic curve has thus been determined The scale can calculate the weight values for the complete load...
Page 114: ...the calibration using the command Stop span calibration with material batch 68 3 Enter the complete quantity of conveyed material before or after the calibration in DR3 in the parameter Calibration quantity span calibration with material batch Step 3 1 Calculate the scale characteristic using the command Calculate span calibration point after material batch 69 The result is displayed in DR4 2 Impo...
Page 115: ...2 Version identifier Information about current data record version USHORT 2 r 1 1 65635 1203 Vmax Speed belt empty Determination using the Start Stop belt revolution detection commands with empty belt Command for importing Ap ply nominal speed 85 FLOAT 4 r 0 1204 Speed correction if belt loaded Only relevant if a sensor is not present determination using the Start Stop belt revolution detection co...
Page 116: ... dig its 88 LONG 4 r 0 1222 Deviation from old initial zero calibra tion digits Is calculated following deter mination of zero calibration digits FLOAT 4 r 0 1224 Calibration weight calculated Determine from the automatic calibration or from the weight calibration or from the load calibration or from the amount of material Command for importing Ap ply span calibration digits 89 FLOAT 4 r 0 1226 Ca...
Page 117: ... FLOAT 4 r 0 1240 Reserve LONG 4 r 0 1242 11 7 1 Stop watch The clock is reset when the stop watch is started and the current time is displayed The current time is also displayed during execution of a calibration command or when zeroing the scale The display is in milliseconds 11 7 2 Result calculator Data record DR 21 is used to enter digits for multiplication or division of two numbers The resul...
Page 118: ...g 40 With this setting correction factor 1 applies to the complete working range of the scale The influence of the belt speed is not taken into consideration for the correction factors Set the correction factors to a value of 1 prior to the test If this is not possible you must correct multiply the existing correction factor with the newly calculated factor Table 11 6 Assignment of data record 5 V...
Page 119: ...ntered must be larger than belt load factor 1 Observe the belt load during the test in SIWATOOL on the touch panel or in the SIMATIC and enter the value 11 8 3 Correction factors 1 and 2 The correction factors have an effect on the material flow rate display and thus also on the totalizer They are calculated and entered following the material test The amount recorded in totalizer 4 is compared wit...
Page 120: ... Negative range of zero adjuster referred to the originally calibrated zero point Specification in of maximum belt load FLOAT 4 rw 1 0 100 1268 Positive range of zero adjuster referred to the originally calibrated zero point Specification in of maximum belt load FLOAT 4 rw 3 0 100 1270 Smallest totalized value Page 122 Smallest totalized value which may be recorded with verification capability FLO...
Page 121: ...oad for totalizing Page 123 Min belt load required to start totalizing Specification in of nominal belt load FLOAT Reserve 4 rw 0 0 Frequency low pass filter weight belt load belt speed Page 124 Low pass filter filtering of weight limit frequency 0 filter switched off Range fg 0 05 50 Hz FLOAT 4 rw 0 5 0 50 1298 Order no low pass filter Page 124 Filter number 2 1 5 USHORT 2 rw 4 1 5 1300 Reserve 2...
Page 122: ...e scale The specification is made in of the design flow rate 11 9 4 Maximum flow rate Exceeding the maximum flow rate is displayed in the status area of the scale The specification is made in of the design flow rate 11 9 5 Delay for flow rate limits Reaching the maximum flow rate is displayed in the status area of the scale only following expiry of the delay The specification is made in ms 11 9 6 ...
Page 123: ...nal belt load which was determined during commissioning 11 9 10 Maximum belt load Exceeding the maximum belt load is displayed in the status area of the belt scale The specification is made in of the nominal belt load which was determined during commissioning 11 9 11 Delay for belt load limits Violation of the limits for the belt load is delayed by the specified time The specification is made in m...
Page 124: ...e speed of the scale s response to changes in the measured value A value of 5 Hz for example results in a relatively rapid response to a change in weight a value of 0 5 Hz makes the scale slower 11 9 14 Order no low pass filter The number of the filter defines the effect of damping The values 2 4 6 8 and 10 can be set The higher the selected order number the higher the damping effect of the filter...
Page 125: ...Assignment digital input DI 0 1 2 3 Page 128 Assignment of digital input 0 Code 0 No command assigned 1 n command number is triggered at a rising edge 0 1 transition 1304 pulse sensor USHORT 2 rw 0 0 1999 1313 Assignment of digital input 1 Code 0 No command assigned 1 n command number is triggered at a rising edge 0 1 transition USHORT 2 rw 0 0 1999 1314 Assignment of digital input 2 Code 0 No com...
Page 126: ...TOP BIT 0 rw 0 0 1 1323 16 Substitute value for DQ 1 following fault or SIMATIC CPU STOP BIT 0 rw 0 0 1 1323 15 Substitute value for DQ 2 following fault or SIMATIC CPU STOP BIT 0 rw 0 0 1 1323 14 Substitute value for DQ 3 following fault or SIMATIC CPU STOP BIT 0 rw 0 0 1 1323 13 Bit 4 Reserve BIT 0 rw 0 0 1 1323 12 Bit 5 Reserve BIT 0 rw 0 0 1 1323 11 Bit 6 Reserve BIT 0 rw 0 0 1 1323 10 Bit 7 R...
Page 127: ...alue to be output when the OutDis signal is enabled in mA FLOAT 4 rw 0 0 24 1331 Trace re cording cycle Page 131 1 10 ms 10 100 ms 100 1 s 1 000 10 s USHORT 2 rw 1 1 1000 1333 Trace stor age method Page 131 0 Trace recording runs as a circular buffer 1 Trace is stopped when the trace memory is full BIT 0 rw 0 0 1 1334 16 Bit 1 Reserve BIT 0 rw 0 0 1 1334 15 Bit 2 Reserve BIT 0 rw 0 0 1 1334 14 Bit...
Page 128: ...ered at a rising edge 1 0 transition 1304 only DI 0 The speed sensor is connected up to approx 5 kHz 1303 only DI 0 Message to SIWAREX Belt switched on 75 only DI 1 Belt revolution sensor for calculation of belt for exact triggering of revolution time 11 10 2 Input filtering hardware setting To ensure that the inputs do not respond too quickly to the signal change a minimum signal pending time can...
Page 129: ...ff 1 Outputs are not switched off continue 2 The relevant substitute value is activated 3 Outputs are switched on 11 10 5 Substitute value for DQ 0 1 2 3 following fault or SIMATIC STOP The outputs are usually reset following a module fault operating error or SIMATIC CPU STOP This response is the default setting If an output is to be set following a fault this response is defined using this parame...
Page 130: ...alog output source The analog output can be used for a range of purposes This parameter defines the tag that controls the analog output Value Basis for the analog output 0 Belt speed 1 Belt load 2 Material flow rate 3 External specification DR 17 Specified in mA 4 Via SIMATIC S7 interface 11 10 8 Response of analog output to faults or SIMATIC STOP This parameter defines the response of the analog ...
Page 131: ... module fault operating error or upon SIMATIC CPU STOP If the analog output is for example to be set to 3 5 mA following a fault this is defined with this parameter The current value to be output is entered NOTICE System can be switched to unsafe state If the analog output is to be set to a given value following a fault operating error you must ensure that this poses no danger 11 10 12 Trace recor...
Page 132: ...u can use one of the digital outputs as a pulse sensor quantity see Assignment digital output DQ 0 1 2 3 Page 128 In addition you must specify a load per pulse and a pulse duration for the signal If the material flow rate is displayed e g in t h you must specify the quantity per pulse in t or with kg h in kg The pulse duration is defined in ms Make sure when setting the parameters that you only en...
Page 133: ...col data record DR 48 must be used for the date and time Procedure Set the date and time Transfer the data record to the scale Table 11 11 Assignment of data record 8 Variable Note Type L Rw Default Min Max Register Data record number Contains no of data record USHORT 2 r 8 1341 Length Data record length information USHORT 2 r 20 1342 Application Information about which appli cation the DR belongs...
Page 134: ...1 65635 1354 Order No header Maximum and current string length for the order number UBYTE 2 2 r 16 16 1355 Order No Order number of the module 7MH CHAR 16 16 r 7MH 1356 Serial number header String header UBYTE 2 2 r 12 12 1364 Serial number Serial number XXX00001 CHAR 12 12 r 1365 Firmware type header String header UBYTE 2 2 r 2 2 1371 Firmware type Character V Release B Test etc CHAR 2 2 r V 1372...
Page 135: ...ongs to USHORT 2 r 104 1402 Version iden tifier Information about current data record version USHORT 2 r 1 1 65635 1403 Number of load cells Page 135 1 Number of analog load cells USHORT 2 rw 1 1 6 1404 50 60 Hz toggling Page 136 50 60 Hz toggling USHORT 2 rw 0 0 1 1405 Reserve 1 Reserve USHORT 2 rw 0 0 0 1406 Load cell characteristic value Page 136 1 Characteristic value of the load cell n mV V t...
Page 136: ...c value of the load cell s is required to correctly interpret the output voltage from the load cell The exact value can be entered if the measurement log for the load cell is available The mean value of all characteristic values is used if there is more than one load cell Example Characteristic value 2 018 mV V 11 13 4 Rated load of a load cell The rated load of a load cell is required for checkin...
Page 137: ...ta record version USHOR T 2 r 1 1 65635 1503 Device MAC address Page 138 Device MAC address 1 USHOR T 2 r 0 FF 1504 Device MAC address 2 USHOR T 2 r 0 FF 1505 Device MAC address 3 USHOR T 2 r 0 FF 1506 Device MAC address 4 USHOR T 2 r 0 FF 1507 Device MAC address 5 USHOR T 2 r 0 FF 1508 Device MAC address 6 USHOR T 2 r 0 FF 1509 Port MAC address Page 138 Port MAC address 1 USHOR T 2 r 0 FF 1510 Po...
Page 138: ... 2 r 0 255 1527 Device name Page 139 Current device name header UBYTE 2 2 rw 1528 Current device name CHAR 3 2 3 2 rw 1529 Reserve 1 Reserve SHORT 2 r 1545 Reserve 2 Reserve FLOAT 4 r 1546 Reserve 3 Reserve FLOAT 4 r 1548 11 14 1 Device MAC address Each SIWAREX module has a unique MAC address This MAC address cannot be changed by the user 11 14 2 Port MAC address Each SIWAREX module has a unique M...
Page 139: ...e SIWAREX WP241 and the communication partner enter the gateway address here If a gateway is not present enter the IP address of the SIWAREX module 11 14 6 Device name This parameter can be used to assign a name to the weighing module in the Ethernet network The length of the name is limited to 32 characters Empty spaces must be filled by x ...
Page 140: ...le Note Type L Rw Default Min Max Register Data record number Contains no of data record USHORT 2 r 13 1558 Length Data record length in formation USHORT 2 r 24 1559 Application Information about which application the data record belongs to USHORT 2 r 104 1560 Version identifier Information about cur rent data record version USHORT 2 r 1 1 65635 1561 RS485 protocol Page 141 0 No pro tocol 1 MODBUS...
Page 141: ... Reserve BIT 0 rw 0 0 1 1564 9 Bit 8 Reserve BIT 0 rw 0 0 1 1564 8 Bit 9 Reserve BIT 0 rw 0 0 1 1564 7 Bit 10 Reserve BIT 0 rw 0 0 1 1564 6 Bit 11 Reserve BIT 0 rw 0 0 1 1564 5 Bit 12 Reserve BIT 0 rw 0 0 1 1564 4 Bit 13 Reserve BIT 0 rw 0 0 1 1564 3 Bit 14 Reserve BIT 0 rw 0 0 1 1564 2 Bit 15 Reserve BIT 2 rw 0 0 1 1564 1 RS485 Modbus address Page 142 MODBUS address USHORT 2 rw 20 1 255 1565 Rese...
Page 142: ...eter defines the character parity for the RS485 interface Value Character parity 0 Even 1 Odd 11 15 4 RS485 number of data bits This parameter defines the number of data bits for the RS485 interface Value Data bits 0 7 1 8 11 15 5 RS485 number of stop bits This parameter defines the number of stop bits for the RS485 interface Value Stop bits 0 1 1 2 11 15 6 RS485 Modbus address This parameter defi...
Page 143: ...tion 11 15 DR 13 RS485 parameters SIWAREX WT241 Manual 05 2015 A5E36046748Aa 143 11 15 7 Modbus RTU response delay This parameter defines the delay of a response to a data request by the Modbus RTU master in ms ...
Page 144: ...current data record version USHORT 2 r 1 1 65635 1573 Current belt angle Page 144 Angle of inclination FLOAT 4 rw 0 0 60 1574 Reserve 1 Reserve SHORT 2 rw 0 0 1576 11 16 1 Current belt angle Input of the angle is provided for belt scales where the inclination of the belt can be changed during operation Calculation of the current belt load is corrected by entering the current angle The input is unn...
Page 145: ...data record USHORT 2 r 16 1578 Length Data record length infor mation USHORT 2 r 20 1579 Application Information about which ap plication the data record belongs to USHORT 2 r 104 1580 Version identifier Information about current data record version USHORT 2 r 1 1 65635 1581 Value for belt load simula tion Page 145 FLOAT 4 rw 0 1582 Value for belt speed simu lation Page 145 SHORT 2 rw 0 0 1584 Res...
Page 146: ...cale Table 11 18 Assignment of data record 17 Variable Note Type L Rw Default Min Max Register Data record number Contains no of data record USHORT 2 r 17 1588 Length Data record length information USHORT 2 r 16 1589 Application Information about which applica tion the data record belongs to USHORT 2 r 104 1590 Version identifier Information about current data record version USHORT 2 r 1 1 65635 1...
Page 147: ...8 Variable Note Type L Rw Default Min Max Register Data record number Contains no of data record USHORT 2 r 18 1596 Length Data record length in formation USHORT 2 r 12 1597 Application Information about which application the DR be longs to USHORT 2 r 104 1598 Version identifier Information about cur rent data record version USHORT 2 r 1 1 65635 1599 Definition for digital output DQ 0 1 2 3 Page 1...
Page 148: ... Bit 9 Reserve BIT 0 rw 0 0 1 1600 7 Bit 10 Reserve BIT 0 rw 0 0 1 1600 6 Bit 11 Reserve BIT 0 rw 0 0 1 1600 5 Bit 12 Reserve BIT 0 rw 0 0 1 1600 4 Bit 13 Reserve BIT 0 rw 0 0 1 1600 3 Bit 14 Reserve BIT 0 rw 0 0 1 1600 2 Bit 15 Reserve BIT 2 rw 0 0 1 1600 1 Reserve 1 Reserve USHORT 2 rw 0 1601 11 19 1 Definition for digital output DQ 0 1 2 3 Digital outputs 0 to 3 can be controlled using data rec...
Page 149: ...e data record to the scale Table 11 20 Assignment of data record 19 Variable Note Type L Rw Default Min Max Regis ter Data record num ber Contains no of data record USHORT 2 r 19 1602 Length Data record length information USHORT 2 r 16 1603 Application Information about which application the data record belongs to USHORT 2 r 104 1604 Version identifier Information about current data record version...
Page 150: ...er Data record number Contains no of data rec ord USHORT 2 r 20 3000 Length Data record length infor mation USHORT 2 r 12 3001 Application Information about which application the data rec ord belongs to USHORT 2 r 104 3002 Version identifier Information about current data record version USHORT 2 r 1 1 255 3003 2000 Technology error BIT 2 rw 1 3004 16 Reserve BIT 0 rw 1 3004 15 2002 Trace error BIT...
Page 151: ...Communication 11 21 DR 20 Message configuration SIWAREX WT241 Manual 05 2015 A5E36046748Aa 151 ...
Page 152: ... the desired activation function using a command 81 for multiplication A x B 83 for division A B The result is displayed in DR 4 Table 11 22 Assignment of data record 21 Variable Note Type L Rw Default Min Max Register Data record number Contains no of data record USHORT 2 r 21 Length Data record length information USHORT 2 r 20 Application Information about which application the data record belon...
Page 153: ... length information USHORT 2 r 68 3001 Application Information about which appli cation the data record belongs to USHORT 2 r 104 3002 Version identifier Information about current data record version USHORT 2 r 1 1 255 3003 In zero offset range Set if belt load within offset range BIT 2 r 0 3004 16 Zero offset procedure active Set if automatic zeroing is switched on BIT 0 r 0 3004 15 Zero tracking...
Page 154: ...s deleted fol lowing setting of time BIT 0 r 0 3005 11 Trace enabled Set if trace is running BIT 0 r 0 3005 10 Operator error at digit input Set in event of sync error re sulting from command at digital input BIT 0 r 0 3005 9 Calibrated Module is calibrated calibration of weight measurement and speed BIT 0 r 0 3005 8 Service mode Service mode active BIT 0 r 0 3005 7 Calibration command is running ...
Page 155: ... unit FLOAT 4 r 0 3010 Current belt load in Page 156 Current belt load in of nomi nal belt load FLOAT 4 r 0 3012 Current flow rate Page 156 Current material flow rate per hour FLOAT 4 r 0 3014 Current flow rate in Page 156 Current material flow rate in of nominal flow rate FLOAT 4 r 0 3016 Current speed Page 156 Current speed per second FLOAT 4 r 0 3018 Current speed in Page 156 Current speed in o...
Page 156: ...eed in of the nominal flow rate 11 23 6 Current speed The current speed used to calculate the material flow rate The output is made as length per second 11 23 7 Current speed in The current speed used to calculate the material flow rate The output is made in of the maximum speed 11 23 8 Current master totalizer S1 The total material flow is summed after the start up and switching off of service mo...
Page 157: ...a 157 11 23 10 Refresh counter for process values Measured values are calculated every 10 ms in the SIWAREX module A counter is incremented by 1 each time Once the counter reaches the value 65536 it starts again from zero The counter can be used as a time stamp for data record DR 30 ...
Page 158: ...ut which application the data record belongs to USHORT 2 r 104 3302 Version identifier Information about current data record version USHORT 2 r 1 1 6563 5 3303 Unfiltered digit value Page 159 Unfiltered digit value from A D convert er LONG 4 r 0 3304 Filtered digit value Page 160 Filtered digit value from A D converter LONG 4 r 0 3306 Current load cell signal mV Page 160 Actual input voltage in mV...
Page 159: ... r 0 0 1 3322 9 Current status of output 0 Current status of output 0 BIT 0 r 0 0 1 3322 8 Current status of output 1 Current status of output 1 BIT 0 r 0 0 1 3322 7 Current status of output 2 Current status of output 2 BIT 0 r 0 0 1 3322 6 Current status of output 3 Current status of output 3 BIT 0 r 0 0 1 3322 5 Reserve BIT 0 r 0 0 1 3322 4 Reserve BIT 0 r 0 0 1 3322 3 Reserve BIT 0 r 0 0 1 3322...
Page 160: ...lses per second at nominal speed This parameter is determined during the belt calculation and indicates how many impulses are output per second by the pulse sensor at the design speed 11 24 7 Pulses per second Current integer value of impulses per second 11 24 8 Nominal boat load The nominal belt load is entered during initial commissioning It is the basis for generating limits DR 6 and is calcula...
Page 161: ...HORT 2 r 1 1 656 35 3503 5000 Data or operating error exists BIT r 0 0 1 3504 16 5001 Command code or data record unknown BIT r 0 0 1 3504 15 5002 Command or data change not possible because write protection is active BIT r 0 0 1 3504 14 5003 Leaving calibration mode not possible BIT r 0 0 1 3504 13 5004 Command or data transmission only avail able in service mode BIT r 0 0 1 3504 12 5005 Command ...
Page 162: ... 1 3506 7 7010 Scale interval rounding not plausible BIT r 0 0 1 3506 6 7011 Filter parameter not plausible BIT r 0 0 1 3506 5 Reserve BIT r 0 0 1 3506 4 Reserve BIT r 0 0 1 3506 3 Reserve BIT r 0 0 1 3506 2 7016 Parameter assignment of analog output not plausible BIT r 0 0 1 3506 1 7017 MAC address cannot be changed BIT r 0 0 1 3607 16 7018 Error in IP mask BIT r 0 0 1 3607 15 7019 RS485 paramete...
Page 163: ...1 25 2 Modbus RTU error code The error code is displayed here of the error which was triggered last as a result of a command at the Modbus RTU interface 11 25 3 Modbus Ethernet error code The error code is displayed here of the error which was triggered last as a result of a command at the Modbus Ethernet interface 11 25 4 SIWATOOL error code The error code is displayed here of the error which was...
Page 164: ... record version USHORT 2 r 1 3517 Current master totalizer S1 Page 164 Master totalizer S1 since commissioning of the scale DOUBLE 8 r 0 3518 Current main total izer S2 Page 164 Current main totalizer S2 FLOAT 4 r 0 3522 Reserve FLOAT 4 r 0 3524 Totalizer 3 S3 totalizer 4 S4 totalizer 5 S5 Page 165 Totalizer S3 FLOAT 4 r 0 3526 Totalizer S4 FLOAT 4 r 0 3528 Totalizer S5 FLOAT 4 r 0 3530 Totalizer ...
Page 165: ...totals individually to 0 using the following commands S3 using command 671 S4 using command 672 S5 using command 673 11 26 4 Totalizer 6 S6 A special property of totalizer 6 is that it remains active even following the command Stop totalizing 652 and therefore indicates the total amount You can therefore carry out material tests or calibrate the scale for example without recording the transported ...
Page 166: ...s to USHORT 2 r 104 4002 Version identifier Information about current data record version USHORT 2 r 1 1 65635 4003 ASCII dis play string header Maximum length and actual length of string UBYTE 2 2 r 16 2 4004 Content of main display as ASCII string Page 166 For display of the material flow rate belt load speed totals CHAR 16 16 r 4005 11 27 1 Content of main display as ASCII string Commands are u...
Page 167: ...Communication 11 27 DR 34 ASCII main display value SIWAREX WT241 Manual 05 2015 A5E36046748Aa 167 Value Command Serial number 871 Firmware version 875 ...
Page 168: ...ted zeroing procedures re cording of manual and automatic zeroing proce dures is reset when load ing the factory settings ULONG 4 r 0 4504 Counter initial zero calibration Number of implemented initial zero calibration pro cedures is reset when loading the factory set tings ULONG 4 r 0 4506 Counter span calibration Number of implemented span calibration proce dures is reset when load ing the facto...
Page 169: ...Communication 11 28 DR 38 Process state extended SIWAREX WT241 Manual 05 2015 A5E36046748Aa 169 ...
Page 170: ...9 Assignment of data record 48 Variable Note Type L Rw De fault Min Max Register Data record number Contains no of data record USHO RT 2 r 48 6960 Length Data record length information USHO RT 2 r 24 6961 Application Information about which application the data record belongs to USHO RT 2 r 104 6962 Version identifier Information about current data record ver sion USHO RT 2 r 1 1 65635 6963 Year Y...
Page 171: ...cal specifications Analog load cell interface connection Error limit to DIN1319 1 at 20 C 10 K 0 05 v E 1 Accuracy according to OIML R76 Class III and IV Resolution d e 3000d Error percent age pi 0 4 Step voltage 0 5 µV e Accuracy delivery state2 typ 0 1 v E Sampling rate 100 Hz Input signal resolution 4 000 000 Measuring range 4 mV V Maximum cable length between junction box and WP241 1 000 m 3 2...
Page 172: ... module replacement or theoretical calibration decisive 3 Value valid at sensor voltage drops on cables are compensated up to 5 V Analog output The set replacement value is output in case of a fault or SIMATIC CPU stop Table 12 3 Technical specifications Error limit according to DIN 1319 1 of full scale value at 20 C 10 K 0 20 mA 0 5 4 mA to 20 mA 0 3 Refresh rate 100 ms Resolution 14 bit Measurin...
Page 173: ...FW 100 Switching delay typ 25 µs turn On typ 150 µs turn off RDSON 0 25 Ω Short circuit proof yes Electrical isolation 500 V AC Cable length meter Max 500 m shielded 150 m unshielded Digital inputs DI Table 12 5 Technical specifications Digital inputs Number of inputs 4 Rated voltage 24 V DC Supply voltage range max 30 V DC Power consumption at 24 V DC 4 mA Voltage surge 35 V DC for 0 5 s Logical ...
Page 174: ...SCII for remote display from Siebert and Mod bus RTU Cable length 115 kbps max 1 000 m fieldbus cable 2 wire shielded e g 6XV1830 0EH10 Ethernet Table 12 8 Technical specifications Ethernet Standard IEEE 802 3 Transmission rate 10 100 Mbps determined automatically Electrical isolation 1 500 V AC Transfer protocol TCP IP Modbus TCP see 1 Autonegotiation yes Auto MDI X yes Cable lengths Cat 5e UTP c...
Page 175: ...opera tion IEC 61131 2 IEC 60068 2 27 Test Ea 150 m s2 approx 15 g half sine Duration 11 ms Quantity 3 each per axis in negative and positive direction Vibration load during transport IEC 60068 2 6 Test Fc 5 to 8 4 Hz 3 5 mm out 8 4 Hz 500 Hz 9 8 m s2 10 cycles per axis 1 octave min Shock load during transport IEC 60068 2 27 Test Ea 250 m s2 25G half sine Duration 6ms Quantity 1 000 each per axis ...
Page 176: ...rial IIIa Conductor path distance 0 5 mm Isolation stability IEC 61131 2 CSA C22 2 No 142 UL508 IEC 61010 1 Mains Enclosure AC 1500V Mains SELV circuits AC 3000V Electromagnetic compatibility Table 12 12 Requirements Interference emission in industrial area in accordance with EN 61000 6 4 Comments Standard Limits Emission of radio interferences electromagnetic fields Class B residential environmen...
Page 177: ...asymmetrical 1 2 50 µs 8 20 µs pos neg Internal generator resistance 2 Ω HF irradiation amplitude modulated IEC61000 4 3 80 to 2 000 MHz 10 V m 2 2 7 GHz 3 V m Mod 80 AM with 1 kHz HF voltage on data signal and power supply cables 0 15 to 80 MHz IEC 61000 4 6 10 kHz to 80 MHz 10 Veff Mod 80 AM with 1 kHz Ambient conditions Table 12 14 Operating conditions in accordance with IEC 60721 Mode IEC60721...
Page 178: ... Comments Ambient conditions Application areas Contaminant concentration SO2 0 5 ppm H2S 0 1 ppm RH 60 no condensa tion Atmospheric pressure Operation IEC 60068 2 13 1 080 795 hPa opera tion 1 000 to 2 000 m above sea level Transport and storage IEC 60068 2 13 1 080 660 hPa opera tion 1 000 to 3 500 m above sea level ...
Page 179: ... in the document Product Information Use of SIWAREX modules in a Zone 2 Hazardous Area http support automation siemens com WW llisapi dll aktprim 100 lang en referer 2f WW 2f func cslib cssearch nodeid0 4000024 viewreg WW siteid csius extranet sta ndard groupid 4000002 objaction cssearch content adsearch 2Fadsearch 2Easpx Note The currently valid approvals for SIWAREX WP241 are to be found on the ...
Page 180: ......
Page 181: ... extending load cell cables 7MH4 710 2AA Ex interface type SIWAREX IS With ATEX approval for intrinsically safe connec tion of load cells including manual suitable for the load cell groups SIWAREX CS U M FTA P WP231 WP321 and WP241 With short circuit current 199 mA DC 7MH4 710 5BA With short circuit current 137 mA DC 7MH4 710 5CA Cable optional Cable Li2Y 1 x 2 x 0 75 ST 2 x 2 x 0 34 ST CY To conn...
Page 182: ...able Li2Y 1 x 2 x 0 75 ST 2 x 2 x 0 34 ST CY blue sheath To connect junction box JB or extension box EB in hazardous area and Ex interface Ex I for fixed laying Occasional bending is possible blue PVC insulating sheath approx 10 8 mm outer diameter For ambient temperature 20 to 70 C 7MH4 702 8AF ...
Page 183: ...s can be destroyed by voltages well below the threshold of human perception These static voltages develop when you touch a component or electrical connection of a device without having drained the static charges present on your body The electrostatic discharge current may lead to latent failure of a module that is this damage may not be significant immediately but in operation may cause malfunctio...
Page 184: ... body the workplace and packaging are grounded This prevents electrostatic charge Avoid direct contact As a general rule only touch electrostatic sensitive devices when this is unavoidable e g during maintenance work Handle the modules without touching any chip pins or PCB traces In this way the discharged energy can not affect the sensitive devices Discharge your body before you start taking any ...
Page 185: ...C Operator Panel HW Hardware NAWI Non automatic weighing instrument NAW Non automatic scales OIML Organisation Internationale de Metrologie Legale OP Operator Panel SIMATIC PC Personal computer pT Preset tare predefined tare weight with manual taring RAM Random access memory PLC Programmable logic controller STEP 7 Programming device software for SIMATIC S7 T Tare weight TM Technology module TP To...
