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Diagnostics

7-3

IM 178-4
C79000-G7076-C178-01

7.2

Diagnostic Data of the IM 178-4

Definition

Diagnostics is the detection and localization of errors. The structure of the
diagnostic functions is specified in the standard EN 50170, Volume 2, PROFIBUS.
The diagnostic functions of the IM 178-4 comply with the standard. The slave
diagnostics of the IM 178-4 are explained in the following sections.

7.2.1

Structure of Slave Diagnostics

Structure of Slave Diagnostics

The diagnostic data of the IM 178-4 is a maximum of 29 bytes long and has the
following structure:

Table 7-2

Structure of Slave Diagnostics

Byte

Assignment

Description

0

Station status 1

Information about the DP slave

1

Station status 2

Additional information about the DP
slave

2

Station status 3

reserved

3

Master PROFIBUS address

Address of the parameter
assignment master

4

High byte of the vendor ID

5

Low byte of the vendor ID

6 to 8

ID-related diagnostics

9 to max. 28

Device-related diagnostics

Availability

The first 6 bytes of the slave diagnostic data are always available.

The ID and device-related diagnostic data is only prepared by the IM 178-4 when
you have enabled the diagnostic interrupt in the parameter assignment.

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Summary of Contents for SIMATIC IM 178-4

Page 1: ... Assignment 4 Preparing for Startup 5 Part 2 Reference Section Functions of the IM 178 4 6 Diagnostics 7 Appendix Technical Specifications A Configuration and Parameter Assignment Frame for the IM 178 4 B Glossary Index IM 178 4 Manual This manual is part of the product with order number 6ES7 178 4BH00 0AE0 SIMATIC ...

Page 2: ...mmended Trademarks SIMATICR SIMATIC HMIR and SIMATIC NETR are registered trademarks of SIEMENS AG Third parties using for their own purposes any other names in this document which refer to trademarks might infringe upon the rights of the trademark owners Safety Guidelines This manual contains notices which you should observe to ensure your own personal safety as well as to protect the product and ...

Page 3: ... following topics S Product overview S Installation and removal of the module S Wiring S Parameter assignment S Starting up S Functions S Diagnostics S Appendix Audience The manual is intended for the following audience S Fitters S Programmers S Commissioning engineers S Service and maintenance personnel Applicability of the Manual This manual contains the description of the function module IM 178...

Page 4: ...ndly product The SIMATIC S7 300 has the following environmental features S Plastic casing highly fireproof despite halogen free flame protection S Labeled by laser in other words no unnecessary labels S Plastic materials indicated in compliance with DIN 54840 S Less material used due to small dimensions less components due to integration in ASICs The SIMATIC S7 300 is suitable for recycling due to...

Page 5: ...e interested in these courses please contact your Regional Training Center or the Central Training Center in D 90327 Nürnberg Germany Tel 49 911 895 3154 The Latest Information You can always obtain the very latest information about SIMATIC products from the following sources S On the Internet http www aut siemens de S By calling fax polling no 08765 93 00 5000 Our SIMATIC Customer Support also su...

Page 6: ...0 to 18 00 Phone 49 911 895 7000 Fax 49 911 895 7002 E mail simatic support nbgm siemens de Local time Mo Fr 8 00 to 17 00 Phone 1 423 461 2522 Fax 1 423 461 2231 E mail simatic hotline sea siemens com Local time Mo Fr 8 30 to 17 30 Phone 65740 7000 Fax 65740 7001 E mail simatic singnet com sg SIMATIC Premium Hotline charged only with SIMATIC Card Time Mo Fr 0 00 to 24 00 Phone 49 911 895 7777 Fax...

Page 7: ...g Parameters to the IM 178 4 4 1 4 2 GSx File 4 3 5 Preparing for Startup 5 1 5 1 Setting the PROFIBUS Address of the IM 178 4 5 1 5 2 Checklist of the Mechanical Construction 5 3 5 3 Checklist for Configuration Parameter Assignment 5 3 6 Functions of the IM 178 4 6 1 6 1 Description of the Functions 6 1 6 1 1 Cyclic Processing 6 1 6 1 2 Error Monitoring 6 5 6 2 User Data Interface 6 8 7 Diagnosti...

Page 8: ...tion and Parameter Assignment Frame for the IM 178 4 B 1 B 1 Structure of the Configuration Frame B 1 B 2 Structure of the Parameter Assignment Frame B 2 B 2 1 Standard Section of the Parameter Assignment Frame B 2 B 2 2 Parameters for the DP Attachment B 3 B 2 3 Technological Parameters B 4 Glossary Glossary 1 Index Index 1 ...

Page 9: ...lowing content S the readme wri liesmich wri lisezmoi wri leggimi wri and leame wri files S the Englisch German French and Italian manual for the IM 178 4 IM178_E PDF IM178_D PDF IM178 4_F PDF IM178 4_I PDF S Device database German SIEM8064 GSG English SIEM8064 GSE French SIEM8064 GSF Italian SIEM8064 GSI S the bitmap files IM178__N BMP and IM178__S BMP S Acrobat Reader 1 ...

Page 10: ...osition detection with SSI position encoders or incremental encoders with 5 V differential signals S One analog output 10 V S 3 digital inputs 2 with fixed functions S 3 digital outputs that you can use as required 1 2 Fields of Application of the IM 178 4 Where can you use the IM 178 4 The IM 178 4 is required mainly by users who want to create distributed position detection and positioning syste...

Page 11: ...rder Number Figure 1 1 The IM 178 4 Module Front Connector With the IM 178 4 the following attachments are possible via the front connector S 2 inputs for position detection with SSI position encoders or incremental position encoders with 5 V differential signals S 6 digital inputs S 6 digital outputs S 2 analog outputs 10 V S Power supply 1L S Load voltage 2L The front connector must be ordered s...

Page 12: ...ling Color Function SF red Group error technology BF red Bus error ON green Operating display 0I0 green Digital input 0 of channel 0 0I1 green Digital input 1 of channel 0 0I2 green Digital input 2 of channel 0 0Q0 green Digital output 0 of channel 0 0Q1 green Digital output 1 of channel 0 0Q2 green Digital output 2 of channel 0 1I0 green Digital input 0 of channel 1 1I1 green Digital input 1 of c...

Page 13: ...ing electrostatic discharge ESD Required Tools To install or remove the IM 178 4 you require a 4 5 mm screwdriver Installation To install the IM 178 4 on a rail follow the steps outlined below For further information about installing modules refer to the manual S7 300 Programmable Controller Hardware and Installation CPU Data 1 Hook the IM 178 4 on to the rail and push in the bottom section of the...

Page 14: ... the load voltage at the front connector 2 Open the front panel If you require it remove the label from inside the panel 3 Release the mounting screw on the front connector and remove the connector 4 Unplug the bus connector Note If the LAN cable is connected through you can remove the bus connector from the DP interface without interrupting the data exchange on the bus 5 Release the mounting scre...

Page 15: ...e voltage via the 40 pin front connector Figure 3 1 shows the front of the module the front connector and the inner side of the front panel with the pinout plan Front connector Front view of the module Inside the front panel 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 1 1 1 1 1 1 1 1 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 3 Figure 3 1 Front Connector of t...

Page 16: ...LS inverted 12 1A SDI IN Channel 1 count signal A serial data input 13 1A SDI IN Channel 1 count signal A serial data input inverted 14 1B IN Channel 1 count signal B 15 1B IN Channel 1 count signal B inverted 16 1N IN Channel 1 zero mark 17 1N IN Channel 1 zero mark inverted 18 1CLS OUT Channel 1 shift clock CLS 19 1CLS OUT Channel 1 shift clock CLS inverted 20 21 1L IN Auxiliary voltage 1L 22 M ...

Page 17: ...ut 1I1 35 1I2 IN green Digital input 1I2 36 1Q0 OUT green Digital output 1Q0 37 1Q1 OUT green Digital output 1Q1 38 1Q2 OUT green Digital output 1Q2 39 2L IN Load voltage 2L 40 2M IN Load voltage ground Note If you supply the sensor with an external voltage connect the ground of the external voltage to the ground of the module terminal 1 or 22 ...

Page 18: ...950 IEC 950 as safety extra low voltage SELV or VDE 0106 Part 101 5 2 V and 24 V Sensor Power Supplies From the 24 V power supply 1L M the module generates a voltage of 5 2 V This voltage is applied to DC5 2V pin 2 as a short circuit proof power supply for the sensors and can accept a maximum load of 600 mA The ground of the sensor power supply is connected to M Pin 1 For sensors that require a po...

Page 19: ...rically isolated from the DP interface and the sensor signals The digital outputs are current sourcing switches and can accept a load current of 0 5 A They are protected against overload and short circuits Note The direct connection of relays and contactors is possible without external protective circuits Analog Outputs Per channel the IM 178 4 has one analog output of 10 V with a resolution of 13...

Page 20: ...encoder and in the immediate vicinity of the module for example using the shield contact element S Use flexible cables with cross sections of 0 25 to 1 5 mm2 S The cables for the analog outputs must be shielded Note If the sensor is supplied with power from the module the conductor cross section must be large enough so that the required voltage is applied to the sensor despite the voltage drop alo...

Page 21: ...the insulation 3 Are you using wire end ferrules If yes Crimp the wire end ferrules onto the wires 4 Thread the accompanying strain relief into the front connector 5 If the wires are led out towards the bottom start wiring from the bottom otherwise from the top You should also screw down terminals that are not in use tightening torque 0 6 to 0 8 Nm 6 Pull the strain relief for the cables tight 7 S...

Page 22: ...Wiring and Connecting the Bus Connector LAN Cable As the LAN cable use the PROFIBUS shielded twisted pair cable or fiber optic cable For ordering information refer to the Catalog ST 70 Cable Lengths For information about the length of the LAN cable in a segment and about interconnecting segments refer to the manuals describing the DP master The cable lengths specified in these manuals are only gua...

Page 23: ...rminal block as shown in Figure 3 4 Make sure that you always connect the same wire to the same terminal A or B for example terminal A is always wired with the green wire and terminal B always with the red wire 4 Press the cable jacket between the two clamping posts This fixes the cable in place 5 Screw the green and red wire into the terminal block A B A B A B A B LAN cable connection for first a...

Page 24: ...If the bus connector is at the start or end of a segment the terminating resistor must be activated switch setting ON see Figure 3 5 Make sure that the nodes on which the terminating resistor is activated are always supplied with voltage during startup and operation Terminating resistor activated on off Terminating resistor not activated on off Figure 3 5 Bus connector 6ES7 972 0B 10 0XA0 Terminat...

Page 25: ...A NSBMP 3 Update the local module catalog in STEP 7 V4 02 with the menu command Options Update Catalog You will then find the IM 178 4 in the hardware catalog under Other FIELD DEVICES OTHER Requirements for Parameter Assignment With COM PROFIBUS Before you can use COM PROFIBUS to assign parameters to the IM 178 4 you must make the following preparations 1 Copy the files SIEM8064 gsd SIEM8064 gse ...

Page 26: ...must know how the configuration and parameter assignment frames are structured This is explained in Appendix C Parameter Assignment Each DP standard slave receives its parameters from the DP master when it starts up itself or when the master is started Successful parameter assignment is indicated by the value TRUE in the PARA status bit for each channel A parameter assignment error is indicated by...

Page 27: ...vailable the most important properties of the IM 178 4 are listed in the table below This information is adequate to install and start up the IM 178 4 in conjunction with the CP 5431 Property DP Keyword as in EN 50170 Volume 2 PROFIBUS IM 178 4 Vendor ID Ident_Number 8064H FMS supported FMS_supp no 9 6 Kbps supported 9 6_supp yes 19 2 Kbps supported 19 2_supp yes 45 45 Kbps supported 45 45_supp ye...

Page 28: ...Max_Module 4 Maximum number of inputs Max_Input_Len 24 bytes Maximum number of outputs Max_Output_Len 8 bytes Maximum number of inputs and outputs together Max_Data_Len 32 bytes Central display of vendor specific status and error messages Unit_Diag_Bit not used Assignment of values in device related diagnostic field to texts Unit_Diag_Area not used IDs of all modules of a modular DP slave Module E...

Page 29: ...M 178 4 Definition Each node must be assigned a PROFIBUS address to identify it uniquely in the PROFIBUS DP network Rules The following rules apply to the PROFIBUS address of the IM 178 4 S The PROFIBUS addresses 0 to 125 are permitted S The PROFIBUS address must only be assigned once on the bus 5 ...

Page 30: ...ddress is the sum of the switches set to the right position ON PROFIBUS address 64 32 2 1 99 IM 178 4 BUS ADDRESS OFF ON 64 32 16 8 4 2 1 Figure 5 1 Setting the PROFIBUS Address Changing the PROFIBUS Address You can change the set PROFIBUS address at any time The IM 178 4 only adopts the new PROFIBUS address after the 25 V power supply 1L has been switched off and on again ...

Page 31: ...Check the shields of the individual cables 7 Turn on the power supplies 5 3 Checklist for Configuration Parameter Assignment Table 5 2 Checklist for Configuration Parameter Assignment Step What needs to be done 1 Have you copied the GSE file and the bitmap file to the local module catalog see Section 4 1 2 Does the PROFIBUS address set on the module match the configured address 3 Have you set the ...

Page 32: ...Preparing for Startup 5 4 IM 178 4 C79000 G7076 C178 01 ...

Page 33: ...t a selectable number of bits following the sensor values Some sensors provide additional information in these subsequent bits such as power error or to indicate that a limit value has been reached If the absolute position encoder you are using supplies less bits than the selected frame contains the following bits must either be masked out in your program or shifted out by normalization Gray code ...

Page 34: ...ins the sign bits 14 to 2 contain the value bits 0 and 1 are irrelevant Table 6 1 Range of Values of the Rotational Speed Setpoint INT Value Corresponds to 0 to 32767 0 V to FS 1 to 32768 1 2 mV to FS 30440 10 V For full scale FS approximately 10 763 V is set Detecting the Actual Reference Value The actual reference value is detected as follows S Depending on the digital input I0 corresponding con...

Page 35: ...tion is satisfied by I0 the IM 178 4 generates the actual reference value and enters it in the user data area of the inputs The module then sets the REF0_Q status bit of the corresponding channel S You can now evaluate the actual reference value and terminate detection of the actual reference value by resetting the REF0 control bit S Following this the module resets the REF0_Q status bit Detection...

Page 36: ...detection of the actual reference value can be started again Synchronization Synchronization means the resetting of the actual position value This is only possible with incremental encoders You specify the conditions for synchronization during parameter assignment The following synchronization conditions are possible S Trigger by software setting the SYN control bit S Rising edge of the zero mark ...

Page 37: ...h time the synchronization condition occurs the actual position value is reset and marked as synchronized SYN status bit has the value TRUE SYN_Q is not set This allows you for example to implement a rotary axis with incremental sensors 6 1 2 Error Monitoring Startup Tests During its startup the IM 178 4 tests the hardware If a fault is detected only the SF LED is lit see Section 7 1 and the modul...

Page 38: ...u can eliminate the indicated error and acknowledge it by assigning the value TRUE to the EXTF_Q bit of the affected channel S The module then clears the EXTF0 EXTF1 or EXTF2 bit belonging to the position encoder error When resetting the bit the module does not check whether the original position encoder error still exists nor whether another position encoder error has occurred for this channel S ...

Page 39: ... Sensor signal cable error Absolute position encoder SSI and incremental encoder S Wire break S Cable not plugged in S Short circuit between wires to ground or to sensor power supply EXTF0 status bit sensor signal cable error is set Zero mark monito ring error Incremental sensor S Interference on the sensor cable S Sensor defective S EXTF2 status bit zero mark error is set S Synchroni zation is cl...

Page 40: ...al output 0 BOOL 1 0Q1 Digital output 1 BOOL 2 0Q2 Digital output 2 BOOL 3 0 reserved 4 0 reserved 5 0 reserved 6 0 reserved 7 E0AO Enable analog output BOOL 1 0 REF1 Trigger actual reference value detection with OI1 and zero mark BOOL 1 REF0 Trigger actual reference value detection with 0I0 BOOL 2 SYN Trigger synchronization BOOL 3 0 reserved 4 0 reserved 5 0 reserved 6 0 reserved 7 EXTF_Q Group ...

Page 41: ...erved 5 0 reserved 6 0 reserved 7 E1AO Enable analog output BOOL 5 0 REF1 Trigger actual reference value detection with 1I1 and zero mark BOOL 1 REF0 Trigger actual reference value detection with 1I0 BOOL 2 SYN Trigger synchronization BOOL 3 0 reserved 4 0 reserved 5 0 reserved 6 0 reserved 7 EXTF_Q Group error acknowledgment BOOL 6 Rotational speed setpoint bit15 sign bit 2 to 14 value bit 0 and ...

Page 42: ...hronization BOOL 3 0 reserved 4 Direction of movement 0 negative di rection 1 positive direction BOOL 5 SYNC Actual value synchronized only valid after setting SYN BOOL 6 PARA Channel parameter assignment error free BOOL 7 irrelevant 1 0 0I0 Digital input 0 BOOL 1 0I1 Digital input 1 BOOL 2 0I2 Digital input 2 BOOL 3 0 reserved 4 EXTF0 Sensor signal cable error 0 BOOL 5 EXTF1 Sensor error BOOL 6 E...

Page 43: ...ement 0 negative di rection 1 positive direction BOOL 5 SYNC Actual value synchronized only valid after setting SYN BOOL 6 PARA Channel parameter assignment error free BOOL 7 irrelevant 13 0 1I0 Digital input 0 BOOL 1 1I1 Digital input 1 BOOL 2 1I2 Digital input 2 BOOL 3 0 reserved 4 EXTF0 Sensor signal cable error 0 BOOL 5 EXTF1 Sensor error BOOL 6 EXTF2 Zero mark error BOOL 7 0 reserved 14 0000 ...

Page 44: ...Functions of the IM 178 4 6 12 IM 178 4 C79000 G7076 C178 01 ...

Page 45: ... is ready for operation S The status LEDs 0I0 0I1 0I2 0Q0 0Q1 0Q2 1I0 1I1 1I2 1Q0 1Q1 1Q2 indicate the state of the digital inputs and outputs IM 178 4 Table 7 1 ON Status LED and Diagnostic LEDs on the IM 178 4 SF BF ON SF red BF red ON green LEDs Meaning Remedy ON BF SF g y Hardware defect on the IM 178 4 The module is defective and must be replaced The voltage is applied to the IM 178 4 the mod...

Page 46: ...k whether there is a break on the LAN cable to the DP master S Turn the switch for 24 V DC on the power supply module off and on again External error on a channel or a channel was not assigned error free parameters Check the peripherals of the channels check the parameter assignment Data exchange between the DP master and IM 178 4 is taking place Both channels are free of errors Note relevant off ...

Page 47: ... is a maximum of 29 bytes long and has the following structure Table 7 2 Structure of Slave Diagnostics Byte Assignment Description 0 Station status 1 Information about the DP slave 1 Station status 2 Additional information about the DP slave 2 Station status 3 reserved 3 Master PROFIBUS address Address of the parameter assignment master 4 High byte of the vendor ID 5 Low byte of the vendor ID 6 t...

Page 48: ...tus 1 Byte 0 Bit Meaning Remedy 0 1 The DP slave cannot be accessed by theDP master S Is the correct PROFIBUS address set on the DP slave S Is the bus connector plugged in S Voltage on the DP slave S RS 485 repeater set correctly S Reset the DP slave 1 1 The DP slave is not ready for data exchange Wait the DP slave is currently starting up 2 1 The configuration data sent by the DP master to the DP...

Page 49: ...structure Table 7 4 Structure of Station Status 2 Byte 1 Bit Meaning 0 1 The DP slave must be reassigned parameters 1 1 A diagnostic message exists The DP slave cannot continue until the error is cleared static diagnostic message 2 1 The bit is always set when a DP slave with this PROFIBUS address exists 3 1 The watchdog has responded 4 1 The slave has received the FREEZE control command 1 5 1 The...

Page 50: ...a 7 00H or 08H 00H is no error has occurred 08H if an error has occurred 8 00H reserved Device Related Diagnostic Data The diagnostic data record DS 1 typical for SIMATIC S7 is entered in the device related diagnostic data The data records and diagnostic data are described for SIMATIC S7 M7 in the System and Standard Functions reference manual Table 7 7 Structure of the Device Related Diagnostic D...

Page 51: ... 7 0 not used 14 0 3 08H ID for module class FM 4 Channel information exists 5 0 not used 6 0 not used 7 0 reserved 15 0 7 00H not used 16 0 7 00H not used 17 0 6 74H ID for channel type FM POS 7 0 no further channel type exists 18 0 7 10H number of diagnostic bits per channel 19 0 7 02H number of channels of same type Channel error vector 20 0 Channel error channel 0 1 Channel error channel 1 2 0...

Page 52: ...d 4 0 not used 5 0 not used 6 0 not used 7 0 not used 22 0 Incorrect parameter assignment 1 0 not used 2 0 not used 3 0 not used 4 0 not used 5 0 not used 6 0 not used 7 0 not used Channel specific error channel 1 23 0 Sensor signal cable error corresponds to status bit EXTF0 1 Sensor error corresponds to status bit EXTF1 2 Zero mark monitoring error corresponds to status bit EXTF2 3 0 not used 4 ...

Page 53: ...the Channel Specific Section of the Diagnostic Data 1 means error Byte Content Meaning Bit reserved 25 0 7 00H reserved 26 0 7 00H reserved 27 0 7 00H reserved 28 0 7 00H reserved For example incorrect sensor type or reserved values not 0 or normalization value too high ...

Page 54: ...Diagnostics 7 10 IM 178 4 C79000 G7076 C178 01 ...

Page 55: ...CSA Approval The following approvals exist for the IM 178 4 UL Recognition Mark Underwriters Laboratories UL complying with Standard UL 508 File E 116536 CSA Certification Mark Canadian Standard Association CSA complying with Standard C 22 2 No 142 File LR 48323 A ...

Page 56: ...ed European standards EN published in the official documentation of the European Union for programmable logic controllers as follows S 89 336 EEC Electromagnetic Compatibility EMC directive S 73 23 EEC Electrical Equipment for Use within Certain Voltage Limits extra low voltage directive In accordance with the directives listed above the EU conformity certificates are kept for the relevant authori...

Page 57: ...ions are as follows S Electromagnetic compatibility S Transport and storage conditions S Mechanical and environmental conditions S Information about isolation tests class of protection and degree of protection The general technical specifications include standards and test values with which the S7 300 complies and meets or indicates the test criteria with which the S7 300 was tested The general te...

Page 58: ...o load approx 135 mA approx 5 mA Power dissipation of the module approx 7 W Status Interrupts Diagnostics Status display yes 13 green LEDs for Status Diagnostic functions S Fault display on module for group fault S Fault display on module for bus fault S Diagnostic information readable yes yes red LED yes red LED yes Specifications of the Inputs and Outputs Sensor inputs Position detection Signal ...

Page 59: ...tal input S Activation of a fast digital input S Short circuit proof S Limitation of inductive circuit interruption voltage S Switching rate S Aggregate current of all digital outputs with horizontal installation S Aggregate current of all digital outputs with vertical installation S Cable length unshielded S Cable length shielded S Electrical isolation 0 signal 0 5 mA 1 signal 0 5 A permitted ran...

Page 60: ...04 ms 28 ms 44 ms 52 ms 14 ms 22 ms 26 ms 16 ms 32 ms 48 ms 64 ms Evaluation of the control signals and generation of the status values every 300 ms 1 When using incremental encoders without a zero mark the two signals N and N must be connected to different potential 5 2 V DC M externally 2 For 0I0 and 1I0 a shielded cable must be used 3 Age of sensor values depends on transmission technique and p...

Page 61: ...of the configuration and parameter assignment frames in the following sections B 1 Structure of the Configuration Frame Structure of the Configuration Frame The configuration frame has a length of 20 bytes It is structured as follows Table B 1 Structure of the Configuration Frame Slot Byte n n 1 n 2 n 3 n 4 1 Slot unchangeable n 0 04 00 00 AD C4 2 Slot unchangeable n 5 04 00 00 8B 41 3 Slot unchan...

Page 62: ... Section B 2 2 Standard section Bytes 0 to 6 see Section B 2 1 see Section B 2 3 see Section B 2 3 Technological Parameters Figure B 1 Structure of the Parameter Assignment Frame for the IM 178 4 B 2 1 Standard Section of the Parameter Assignment Frame Standard Section The first 7 bytes of the parameter assignment frame are standardized according to EN 50170 and have the following content for the ...

Page 63: ...P Attachment The length of the parameters for the DP attachment is 3 bytes The default values of these parameters are 40H 20H 00H The parameters have the following meaning Bit no Start bit monitoring 0 on 1 off Stop bit monitoring 0 on 1 off Watchdog base 0 10 ms other DP master 1 1 ms S7 M7 DP master Enable diagnostic interrupt Figure B 3 Parameters for the DP Attachment ...

Page 64: ...onstant 14 10H Constant Module specific parameters 15 0 6 0000000 reserved 7 1 Diagnostic interrupt 0 disable 1 enable 16 00H reserved Parameters for channel 0 17 0 2 100 Sensor type 000 none 001 SSI 13 bit 010 SSI 21 bit 011 SSI 25 bit 100 incremental sensor 101 incremental sensor inverted 3 1 With sensor type 1 to 3 Gray binary convertor 0 off 1 on 4 5 00 With sensor type 1 to 3 baud rate 00 125...

Page 65: ...ference value generation via 0I0 Edge se lection 0I0 00 none 01 falling edge at 0I0 10 rising edge at 0I0 11 both edges of 0I0 19 00H reserved 20 00H reserved Parameters for channel 1 21 0 2 100 Sensor type 000 none 001 SSI 13 bit 010 SSI 21 bit 011 SSI 25 bit 100 incremental sensor 101 incremental sensor inverted 3 1 With sensor type 1 to 3 Gray binary convertor 0 off 1 on 4 5 00 With sensor type...

Page 66: ...ed in the user data area possible values with an SSI 13 bit position encoder 0 to 9 otherwise 0 to 15 4 5 00 With sensor type 4 and 5 synchronization condition 00 software 01 zero mark 10 digital input 1I1 11 digital input 1I1 and zero mark 6 7 00 With actual reference value generation via 1I0 edge selection 1I0 00 none 01 falling edge of 1I0 10 rising edge of 1I0 11 both edges of 1I0 23 00H reser...

Page 67: ... 4 the bus is a twisted pair cable or fiber optic cable Bus connector The physical connection between the node and the LAN cable For the IM 178 4 there are bus connectors with and without attachments for PG PC and in the types of protection IP 20 and IP 65 Bus Segment Segment Chassis Chassis includes all the inactive parts of electrical equipment that are connected together and that cannot carry a...

Page 68: ...executed automatically while the system is operating This increases the availability of systems by reducing the installation times and down times DP master A master that behaves according to the standard EN 50170 Volume 2 PROFIBUS is known as a DP master DP standard is the bus protocol of the IM 178 4 complying with the standard EN 50170 Volume 2 PROFIBUS DP slave A slave created on PROFIBUS with ...

Page 69: ...ave to the DP master again when the DP master sends the UNFREEZE control command Functional ground Grounding that only serves to ensure the intended function of the electrical equipment With functional grounding spurious voltages are short circuited that would otherwise have an unacceptable influence on the equipment Ground The conductive ground area whose electrical potential can be set to zero a...

Page 70: ...nd all other nodes are DP slaves Node Device that sends receives or repeats data sent via the bus for example DP master DP slave RS 485 repeater active star coupler Non floating With non floating input output modules the reference potentials of the control and load circuits are electrically connected Parameter assignment Parameter assignment involves the setting of the behavior of the module Param...

Page 71: ...dheld device have PROFIBUS address 0 DP masters and DP slaves have a PROFIBUS address in the range 1 to 125 PROFIBUS DP PROFIBUS bus system with the DP protocol DP stands for Distributed Peripheral I Os The IM 178 4 is based on the standard EN 50 170 Volume 2 PROFIBUS Programming device Programming devices PGs are basically personal computers designed for use in industry They are particularly comp...

Page 72: ...trol command Transmission rate The transmission rate is the speed at which data is transferred and is specified as the number of bits transferred per second baud rate bit rate On the IM 178 4 transmission rates 9 6 Kbps to 12 Mbps are possible Terminating resistor is a resistor for balancing power on the bus cable terminating resistors are always required at the end of the cable or segment On the ...

Page 73: ...ensors 6 2 Detecting the actual reference value 6 2 Detecting the actual reference value dependent on I0 6 3 Detecting the actual reference value with I1 and zero mark 6 4 Device database file 4 3 Device related diagnostic data structure 7 6 7 10 Diagnostic data 7 3 Diagnostics Glossary 2 Digital inputs cables 3 6 Digital inputs I0 to I2 3 5 Digital outputs Q0 to Q2 3 5 Distributed I Os Glossary 2...

Page 74: ...ological B 4 Parameters for the DP attachment structure B 3 Position encoder monitoring errors 6 6 6 8 PROFIBUS Glossary 5 PROFIBUS address 5 1 Glossary 5 changing 5 2 rules 5 1 setting 5 2 PROFIBUS DP Glossary 5 Programming device Glossary 5 R Reference potential Glossary 5 Removing the module procedure 2 2 Replacing the module procedure 2 2 S Safety rules 2 1 Segment Glossary 5 Sensor pins 3 4 S...

Page 75: ... 3 IM 178 4 C79000 G7076 C178 01 U User data interface 6 8 addresses 6 8 assignment for outputs 6 8 6 10 assignment of the inputs 6 10 6 12 V Version Glossary 6 W Watchdog 6 5 Glossary 6 Z Zero mark monitoring 6 7 ...

Page 76: ...Index Index 4 IM 178 4 C79000 G7076 C178 01 ...

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