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4-2

Chapter 4: Channel Configuration, Data, and Status

User’s Manual Pub. 0300181-07 Rev. A

Figure 4-1. Configuration Word

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Содержание SLC 500

Страница 1: ...User s Manual Pub 0300181 07 Rev A ...

Страница 2: ...rvice referenced herein No patent liability is assumed by Spectrum Controls Inc with respect to the use of any of the information products circuits programming or services referenced herein The information in this owner s guide is subject to change without notice Limited Warranty Spectrum Controls Inc warrants that its products are free from defects in material and workmanship under normal use and...

Страница 3: ...ION 2 8 PREPARING AND WIRING CABLES 2 7 SECTION 2 9 LABELING AND RE INSTALLING THE TERMINAL BLOCK 2 9 CONFIGURING THE 1746SC CTR4 CTR8 3 1 SECTION 3 1 MODULE ID CODE 3 1 SECTION 3 2 MODULE ADDRESSING 3 1 SECTION 3 3 OPERATING MODES 3 3 SECTION 3 4 INPUT CONFIGURATIONS 3 3 SECTION 3 5 MODES 3 5 SECTION 3 6 CHANNEL TURN ON TURN OFF AND RECONFIGURATION TIMES 3 6 SECTION 3 7 RESPONSE TO SLOT DISABLING...

Страница 4: ...ING YOUR MODULE AND ENSURING SAFETY 7 1 SECTION 7 1 PREVENTIVE MAINTENANCE 7 1 SECTION 7 2 SAFETYCONSIDERATIONS 7 1 SECTION 7 3 GETTING TECHNICAL ASSISTANCE 7 2 SECTION 7 4 DECLARATION OF CONFORMITY 7 3 APPENDIX A FLOATING POINT RATE MODE A 1 OVERVIEW A 1 CONFIGURING EACH INPUT CHANNEL FOR FLOATING POINT RATE A 1 INPUT REGISTERS CHANNEL DATA A 1 SETTINGTHE RATE LIMIT R FACTOR A 2 INPUT REGISTERS C...

Страница 5: ...tact your local Allen Bradley representative for the proper training before using these products What This Manual Covers This guide covers the 1746sc CTR4 and 1746sc CTR8 Counter Flowmeter input modules It contains the information you need to install wire use and maintain these modules It also provides diagnostic and troubleshooting help should the need arise Related Documentation The table below ...

Страница 6: ...Contact numbers are as follows USA 1 440 646 6900 United Kingdom 01 908 635 230 Australia 1 800 809 929 Mexico 001 888 365 8677 Brazil 55 11 3618 8800 Europe 49 211 41553 630 or send an email tosupport spectrumcontrols com Documentation If you would like a manual you can download a free electronic version from the Internet at www spectrumcontrols com Conventions Used in This Manual The following c...

Страница 7: ...risquant d entraîner des blessures pouvant être mortelles des dégâts matériels ou des pertes financières Les messages Attention vous aident à identifier un danger à éviter ce danger et en discerner les conséquences NOTE Identifies information that is critical for successful application and understanding of the product ...

Страница 8: ...viii SLC 500 50 kHz Counter Flowmeter Input Module User s Manual Pub 0300181 07 Rev A ...

Страница 9: ...e counter including start stop reset preset control and user defined flags The input levels for the counter mode are 5 12 and 24 volts DC The Flow Meter mode is compatible with variable reluctance AC input This differential AC input will count AC zero crossing signals from 50 mV to 75 V peak Read this chapter to familiarize yourself further with your isolated analog module shown above This chapter...

Страница 10: ... accuracy Programmable functions allow the user to define counter ranges and flags to accommodate process specificrequirements Full speed counter operation of over 50kHz is possible Section 1 3 Reduced System Costs High Channel density allows for lower resource usage Eight channelsconsume the resources associated with a standard two channel module Section 1 4 State of the Art Performance These mod...

Страница 11: ...in greater than 10 ohms when within 10 V to 12 V range Rin 25 Kohms when outside of 10 V to 12 V range Cin 100 pF Input Filter Off Cin 1000 pF Input Filter On Counter Speed DC Inputs 0 Hz to 50 kHz AC Inputs 0 Hz to 50 kHz Input Frequency DC Inputs 1 Hz to 50 kHz AC Inputs 1 Hz to 50 kHz Counter Enable Input VIL 1 0 V maximum VIH 3 5 V minimum Vmax 75 V Input impedance 25 Kohms Input Filter Digita...

Страница 12: ...put current 5 mA at 100 VDC Power Requirements CTR4 CTR8 Internal rack 5 V 17 5mA 225 mA Internal rack 24 V 75 mA 125 mA Table 1 2 Physical Specifications Specification Description LED Indicators Module Status The Module Status LED indicates the status of the power up self test The LED is on when the module is ready Any self test error is indicated with a blink code Channel Status CTR4 4 Green LED...

Страница 13: ...FR Part 15 Class A ROROC Arrêté ministériel n 6404 15 du 29 ramadan 1436 16 juillet 2015 NM EN 61131 2 NM EN 61000 6 4 NM EN 61000 6 2 Diagnostic LEDs The module contains diagnostic LEDs that help you identify the source of problems that may occur during power up or during normal operation Power up and channel diagnostics are explained in Chapter N Testing Your Module Section 1 7 System Overview T...

Страница 14: ...rying inputs can be digitized Inputs have the option to be filtered with a single pole RC filter if the filter has been enabled by the user in their application The user is also expected to set the threshold level for their application Inputs are tolerant of the full input range regardless of the threshold selected To use a channel the corresponding input enable must be wired to a positive voltage...

Страница 15: ...arnings can cause personal injury WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class I Division 2 Do not replace components or disconnect equipment unless power has been switched off or the area is known to be non hazardous Touch a grounded object to discharge static potential Do not connect or disconnect components unless power has been switched off or the area i...

Страница 16: ...se keep the module in its static shield bag Section 2 2 EMC Directive This product is tested to meet Council Directive 2014 30 EU Electromagnetic Compatibility EMC and the following standards in whole or in part documented in a technical construction file EN 61000 6 4 Electromagnetic compatibility EMC Part 6 4 Generic standards Emission standard for industrial environments EN 61000 6 2 Electromagn...

Страница 17: ...allation in an industrial enclosure to reduce the effects of electrical interference Analog inputs are highly susceptible to electrical noise Electrical noise coupled to the analog inputs will reduce the performance accuracy of the module Group your modules to minimize adverse effects from radiated electrical noise and heat Consider the following conditions when selecting a location for the analog...

Страница 18: ... the module If however you do remove the terminal block apply the supplied write on label to the terminal block and use the write on label to identify your module s location and type To remove the terminal block unscrew the two retaining screws at the top and bottom of the terminal block and using a screwdriver or needle nose pliers carefully pry the terminal block loose ...

Страница 19: ...ch it to its backplane connector Never force your module into the slot 3 Cover all unused slots with the Card Slot Filler Allen Bradley part number 1746 N2 4 To remove your module press the retaining clips at the top and bottom of your module and slide it out Section 2 7 Wiring Your Module WARNING POSSIBLE EQUIPMENT OPERATION Never reach into a machine to actuate a switch Also remove all electrica...

Страница 20: ...ch it is used Ensure that the SLC 500 system is installed in a NEMA rated enclosure and that the SLC 500 system is properly grounded Route the field wiring away from any other wiring and as far as possible from sources of electrical noise such as motors transformers contactors and AC devices Generally allow at least 6 in about 15 2 cm of separation for every 120 V of power Routing the field wiring...

Страница 21: ...t the drain wire and foil shield back to the cable and apply shrink wrap 6 Connect the wires to the terminal block and field device as shown in the following figures and table The recommended maximum torque is 4 5 in lb 0 565 Nm for all terminal screws 7 To guard against electrostatic damage and improve chassis grounding connect one of the shield pins on the terminal block of your module to the ch...

Страница 22: ...pressor for CE compliance 9 A system may malfunction due to a change in its operating environment After installing and wiring your module check system operation See the Allen Bradley system Installation and Operation Manual for more information Figure 2 3 Wiring diagrams showing differential outputs ...

Страница 23: ...ing and Re Installing the Terminal Block The supplied label is mounted on the module door This label helps ensure that the terminal block is wired correctly for the module Once you have wired your module and properly labeled install the terminal block on your module 1 Align the terminal block with the receptacle 2 Insert the terminal block and press firmly at the top and bottom until it is properl...

Страница 24: ...2 10 Chapter 2 Installation and Wiring User s Manual Pub 0300181 07 Rev A ...

Страница 25: ...s on the system I O configuration display and enter 10200 as the ID code for the 1746sc CTR4 and 10401 as the ID code for the 1746sc CTR8 No special I O configuration SPIO CONFIG is required The module ID automatically assigns the correct number of input and output words If you are using different programming software package refer to the documentation that came with your software Section 3 2 Modu...

Страница 26: ...A Figure 3 1 Image Table Output Image Configuration Words Thirty two CTR 8 or sixteen CTR 4 words of the SLC processor s output image table are reserved for the module For the CTR8 output image words 0 31 are used to configure input channels 0 7 For the CTR4 output image words 0 15 ...

Страница 27: ...the content of the data word and the status word Section 3 3 Operating Modes The module s operating mode determines the number of available counters and which inputs are attached to them There are two operating modes and their input assignments are summarized in the table below Table 3 2 Module Operation Modes Operational Mode CTR8 CTR4 Input Channel Configuration Single Ended Input 8 4 Channels O...

Страница 28: ...ttached to an input channel pair A and B the count direction is determined by the phase angle between inputs A and B If A leads B the counter increments If B leads A the counter decrements The counter changes value only on one edge of input 1 The counter increments once per quadrature cycle NOTE The X1 Quadrature mode provides additional Anti Jitter circuitry This distinguishes between a valid qua...

Страница 29: ...input B transitions Input A is stuck low while input B is active Module will count up on input B transitions Section 3 5 Modes There are two methods to gate start stop your counter hardware and software The counter s gate preset mode determines what if any gating is applied to the counter and what if any conditions will preset the counter to the preset value External Hardware Gate Lines There are ...

Страница 30: ...able enable procedure WARNING POSSIBLE EQUIPMENT OPERATION Always understand the implications of disabling a module before using the slot disable feature Failure to observe this precaution can cause unintended equipment operation which may cause injury to personnel or damage to equipment Input Response When a counter slot is disabled the counter module continues to update its input image table How...

Страница 31: ...nfiguring Each Input Channel The Data Register format uses Class 3 operation Class 3 mode allows the module to use 32 input words and 32 output words of data as listed below After installing your module you must configure each channel by setting bit values in each configuration word Output words 0 through 31 of the output image file addresses O e 0 O e 31 configure channels 0 7 respectively and ad...

Страница 32: ...4 2 Chapter 4 Channel Configuration Data and Status User s Manual Pub 0300181 07 Rev A Figure 4 1 Configuration Word ...

Страница 33: ...unter will hold its last value and stop counting Counter Preset Configuration Bit 1 When this bit is set the value in counter preset word is loaded into the counter The counter preset can be used to set the counter to an initial starting value The bit should be set for at least 2 I O scans The bit can be held on until the data in the counter data is verified to be equal to the preset value The cou...

Страница 34: ...or counter decremented down through zero flag Status word bit 8 Count up or down through the limit flag Status word bit 6 And these flags do not remain high Maximum count flag Status word bit 5 is set if count value is exactly equal to 32 767 16 bit or 8 388 607 24 bit Otherwise it is clear Rate Mode Configuration Bit 3 Refer to Appendix A for Floating Point Rate Mode Rate Average When the rate mo...

Страница 35: ...on Bits 4 5 This group of 2 bits selects one of 4 input ranges Each range is selected for a given system voltage level Each range has its own counter trip level Refer to the Specifications section of this manual for input limit information Table 4 2 Input Range Selection Bits Mode Bit Setting Range AC 00 50 mV to 30 VAC DC 01 0 to 5 VDC DC 10 0 to 12 VDC DC 11 0 to 24 VDC NOTE The input range must...

Страница 36: ...ature mode channels will be configured into quadrature encoding pairs Both channels within a pair must be configured for quadrature mode Quadrature encoding will report the same quadrature count value on each channel s output Quadrature mode allows for the channels to count up or down depending on the quadrature encoding direction The COUNT DIRECTION bit can invert the direction of the quadrature ...

Страница 37: ...e of 32 767 is reached the Maximum Count flag is set and rollover will occur at this point When the count size is extended to 8 388 607 by setting this bit to 1 the Counters Maximum flag is extended to 8M and data output is formed using two words The counter Preset and Limit values are also extended to 8M This means that the resolution of the Preset and Limit values is set in blocks of 256 counts ...

Страница 38: ... 2 Output Register Scale and Limit Data Values When using the Counter Preset Counter Limit Rate Limit or K M R Factors you must input the value that is appropriate for your application The values follow each channels configuration word and use the next three configuration words For example Channel 0 has a configuration word address of O e 0 Preset address of O e 1 a Counter Limit address of O e 2 ...

Страница 39: ...nded to 8M This means that the resolution of the Preset and Limit values is set in blocks of 256 counts 8 bits This allows the preset and limit values to cover the whole 8M bit range Refer to the applications section of this manual for more information about setting limit and scale values Counter Limit K Factor The counter limit mode is used in Normal operation mode This input data word is used in...

Страница 40: ...re Figure 4 7 Rate Limit R Factor Word Refer to the applications section of the manual for limit and scale examples Floating Point Rate Mode is activated by setting the Rate Factor to 1 See Appendix A for information about the floating point mode Section 4 3 Input Registers Channel Data The channel data consists of 4 words the lower counter data value the upper counter data value the rate data val...

Страница 41: ...egister is always zero when operating the standard 32 K countmode Counter Data Low word This input data register contains the lower word of the counter accumulator This register is a signed 16 bit word in binary 2 s complement format and will allow count values up to 32 K This word is used in conjunction with the counter s upper output word when in the extended count mode Bit 15 represents the sig...

Страница 42: ...presents the input value Note that if the R Factor is present the output date value is represented as the Rate R Factor Rates greater than 32kHz must use a R factor otherwise overflow will occur If the R factor is set to 2 and your input rate is 50kHz the data output word will read 25 000 Figure 4 11 Counter Rate Word Check each input channel s configuration and status as follows Channel Status Fl...

Страница 43: ...id in system diagnosis Count Direction Invert Bit echo Status Bit 3 This bit echoes the state of the Count Direction bit set in the channel configuration register The count direction status echoes the state of the invert bit It does not determine if the count is going up or down Count Size Selection echo Status Bit 4 This bit echoes the state of the maximum counter value selected in the configurat...

Страница 44: ... Factor M Factor Set Flag Configuration Bit 12 This bit indicates that a non zero K or M factor value has been written to the module s non volatile memory This value will be used to scale the input counter data When a K or M factor is set all count data will be scaled by the K or M factor data R Factor Set Flag Configuration Bit 13 This bit indicates that a non zero R factor value has been written...

Страница 45: ...t of 10 000 counts This cycle will continue without stopping with these configuration settings Channel 0 Output Register Configuration O e 0 Output Register Configuration Config Bit Description Bit Setting Description 15 Normal 0 Normal Mode 14 Roll Under 0 Roll to Neg s 13 Roll Over 0 Roll to Zero 12 Direction 0 Default No Inversion 11 Count Size 0 Default 32K Std 10 Freq Filter 0 Default 50kHz 9...

Страница 46: ...Roll Under to this Preset Value Section 5 2 Ring Counter Sample The figure below demonstrates a ring counter operation In a ring counter operation the count value changes between zero and maximum If when counting up the counter reaches the maximum value it rolls over to zero If when counting down the counter reaches zero it rolls under to the maximum value Section 5 3 Simple Ring Counter with Flat...

Страница 47: ... Default Toggle each Rev 1 Counter Preset 0 Default Off Output Word O e 1 Counter Preset 20 000 Output Word O e 2 Counter Limit 20 000 A ring counter is configured by setting the preset and limit values to the same count and setting the roll over to zero and roll under to preset bits Zero must always be the starting point and the maximum value must always be positive The above figure illustrates c...

Страница 48: ...ing frequency R Factor When a scale factor is being used the Rate Limit flag is also scaled Example If a rate factor of R 2 is programmed into the module the Rate Limit value is set to 10 kHz In this example the Rate Limit Flag would be set when the input frequency is greater than or equal to 20 KHz Rate Limit Flag Input Frequency R factor Rate Limit Flag 10 000Hz 2 20 000Hz Section 5 6 Applicatio...

Страница 49: ...ditional control registers In order to accommodate this feature into the design three of the four registers assigned to each channel of the module are multiplexed with the Counter Preset Limit and Rate limit values If factored data values are inadvertently loaded into the module without user knowledge of this occurring the module can appear to be non functional Follow these steps to identify if fa...

Страница 50: ...ntering 0 into these registers bit 15 of the module Configuration register must be toggled from 0 to 1 and then back to 0 There are 4 registers assigned for each Channels output configuration word The first register assigned is the channel configuration register The next 3 registers are the Preset K Factor Limit M Factor and Limit R Factor registers respectively Refer to Chapter 3 for detailed inf...

Страница 51: ...a channel through your ladder program ensure that you have chosen a proper input range for your input signal Failure to observe this precaution can cause improper module operation or equipment damage 2 Ensure that the shield for the cable used to wire your module is properly grounded Refer to Chapter 2 Installing And Wiring Your Module for more information 3 Ensure that the removable terminal bloc...

Страница 52: ... personal injury Powering Up When you apply power to the system the module status LED should illuminate indicating that your module is receiving power and has completed its onboard self test If the LED does not illuminate after several seconds your module is not functional Discontinue testing until you can get the LED to illuminate The most probable reasons for the LED not illuminating are The SLC...

Страница 53: ...des may be used to detect channel configuration errors Table 6 1 Channel Status LED Blink Codes Blink Fault 1 Frequency Scale F Factor Out of Range 2 Frequency Input Range Mismatch Channel pairs 0 1 2 3 4 5 6 7 must be configured for the same range 3 Bidirectional or Quadrature Mode Configuration Error Channel pair configuration word must be identical for these modes 4 Negative K M or F Factor 5 L...

Страница 54: ...high and status bit 11 Rate Zero is high you may require a 1 to 10 kΩ pull down resistor depending on the in put device between your channel input and channel common If you have an open collector output or a relay or contact type output you may need the pull down resistor Refer to your sensor documentation for additional information Verify that your input level thresholds are matched to your confi...

Страница 55: ...Chapter 6 Testing Your Module 6 5 User s Manual Pub 0300181 07 Rev A ...

Страница 56: ...6 6 Chapter 6 Testing Your Module User s Manual Pub 0300181 07 Rev A ...

Страница 57: ...may cause a malfunctioning of the SLC system or damage to the components WARNING POSSIBILITY OF LOOSE CONNECTIONS Before inspecting connections always ensure that incoming power is off Failure to observe this precaution may cause personal injury and damage to equipment Section 7 2 Safety Considerations Safety is always the most important consideration Actively think about the safety of yourself an...

Страница 58: ...its Circuits installed on machinery for safety reasons like over travel limit switches stop push buttons and interlocks should always be hard wired to the master control relay These circuits should also be wired in series so that when any one circuit opens the master control relay is de energized thereby removing power Never modify these circuits to defeat their function Serious injury or equipmen...

Страница 59: ...se contact your local distributor or call the Spectrum Controls Technical Support at For Rockwell Automation Compatible I O Products USA 1 440 646 6900 United Kingdom 01 908 635 230 Australia 1 800 809 929 Mexico 001 888 365 8677 Brazil 55 11 3618 8800 Europe 49 211 41553 630 Section 7 4 Declaration of Conformity Available upon request ...

Страница 60: ...7 4 Chapter 7 Maintaining your Module and Ensuring Safety User s Manual Pub 0300181 07 Rev A ...

Страница 61: ...nt Rate The Data Register format for floating point is different that the default register mode The data words have been moved to accommodate the floating point rate value Your ladder logic must be modified to support this new word format In order to activate the floating point mode you must set the Rate Factor to a value of 1 The following steps are necessary to accomplish this 1 Load the value 1...

Страница 62: ...SW Rate Data High Rate Data Low Status Reg I e 24 to I e 27 n a 6 Channel LSW Rate Data High Rate Data Low Status Reg I e 28 to I e 31 n a 7 Channel LSW Rate Data High Rate Data Low Status Reg Figure A 2 Data Words Setting the Rate Limit R Factor The R Factor function is used to activate the floating point mode Setting the value to 1 activates this mode Use Bit 15 in your channel configuration wor...

Страница 63: ...hese two input data registers contain the rate value while operating in floating point rate mode The registers represent a 32 bit word in binary 2 s complement format and when combined form the 32 bit floating point rate value Figure A 4 Counter Rate Word Module status Status remains the same as other modes Information may be found in Chapter 4 Ladder Logic In order to create the floating point va...

Страница 64: ...A 4 Appendix A Floating Point Rate Mode User s Manual Pub 0300181 07 Rev A ...

Страница 65: ...User s Manual Pub 0300181 07 Rev A ...

Страница 66: ...ions subject to change without notice The Encompass logo and SLC 500 are trademarks of Rockwell Automation Corporate Headquarters Spectrum Controls Inc 1705 132nd Avenue NE Bellevue WA 98005 USA Fax 425 641 9473 Tel 425 746 9481 Web Site www spectrumcontrols com E mail spectrum spectrumcontrols com ...

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