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1756-UM007 - Rockwell Automation

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1. 10 ms to 2 seconds in 10 ms increments ampled Pulses 3 User Selectable Sample Period 100 ms Total Number of Pulses in Totalizer Tag 8 Updated on Falling Edge of Scaler T Always Inactive for 10 ms Regardless of Scaler Outputs Updated Here Frequency Mode 25 68 A Input JUUL Co B Notused Scaler No Z Not used ond Encoder Pulse Generator Gate Reset VEMM Incoming Pulses on A Input 9 10 11 12 E 1756 HSC Module i i 14 See Note Below Internal Sample Period i yg Scaler Value Example 100 ms 1 1 12 13 i No of Pulses Occurring During 3 on Sample Time in Present Value Tag Totalizer Tag m A User Selectable Sample PANON Frequency Calculated Frequency in Stored Value Tag 30Hz 5i Rockwell Automation Publication 1756 UMO007C EN P November 2011 32 Frequency Modes Period Rate and These two Frequency operational modes are identical in how they calculate frequency They determine the frequency of input pulses by counting the Continuous Rate Modes number of internal 4 MHz clock pulses over a user specified number of Z input signal pulses defined by the Scaler Frequency 5 x Scaler 250 ns x 4 MHz pulses At the end of the sample period the module returns the frequency in the Stored Value tag the number of internal 4 MHz pulses in the Present Value tag and a value indicating the total number of Z input pulses that have occurred
2. Introduction Counter Encoder Overview Counter Modes This chapter describes the Counter modes for the 1756 HSC B module Topics include types of counting counter and encoder means of storing the counts modes fot manipulating the count tags for control of on board outputs Topic Page CounterMode i n h Encoder Mode 20 Preset 22 Rollover 22 Input Z Gate Reset 23 Outputs 26 There are three Counter modes that can be selected from the Operational Mode pull down menu on the Counter Configuration tab See Chapter 5 for configuration details The choices are Counter mode default Encoder x1 mode Encodet x4 mode The Encoder and Counter modes are virtually identical the only difference is the method used to count There are two counters using input A and B per module Input Z which is described in more detail later in this chapter basically affects how the counts ate stored based on the selected Storage mode In Counter mode the module reads incoming pulses from input A only and stotes the accumulated count value in the Present Value tag The state of input B determines whether to increment or decrement the count based on whether it s low floating count up or high count down In both Encoder modes the 1756 HSC module uses two channels to read incoming pulses The module uses the phase relationship between inputs A and B to determine the count va
3. Module fault reporting 1 0 modules provide both hardware and software indications when a module fault occurs Status indicators signal fault conditions The RSLogix 5000 programming software describes the fault message so you know what action to take to resume normal operation Status indicators Status indicators on the front of the module report the operational status of the 1756 HSC module The input point status display indicates a particular point s status including specifics for the input A B and Z reset points for each channel of the 1756 HSC module The output point status display indicates the status of four output points on the 1756 HSC module Producer consumer model Logix5000 controllers let you produce broadcast and consume receive system shared tags The 1756 HSC module can produce data without having to be polled first by a controller The 1756 HSC module produces the data and any owner controller device can decide to consume it Electronic Keying See page 73 in Chapter 5 for details RIUP RIUP is an abbreviation for removal and insertion under power The module can be inserted and removed from the chassis while power is applied This flexibility allows you to maintain the module either removing or inserting without disrupting the rest of the controlled process Rockwell Automation Publication 1756 UMO007C EN P November 2011 1756 HSC Module Features 15 1756 HSC Parts Illustr
4. Decimal Displays the output state 0 Output is low 1 Output is high lsOverridden y BOOL Decimal Determines whether output is overridden 0 Output is using On Off window Output is overridden CSTTimestamp DINT 2 Displays the coordinated system timestamp of the last sample in microseconds Rockwell Automation Publication 1756 UMO007C EN P November 2011 92 1756 HSC Data Structures Notes Rockwell Automation Publication 1756 UMO007C EN P November 2011 Appendix C 1756 HSC Module History Introduction This appendix describe s Logix5000 profiles for 1756 HSC modules Series A firmware revisions 1 x 2 x software versions 15 18 Series B firmware revision 3 x software versions 15 18 The table shows the profiles available for your 1756 HSC module based on the series firmware and software version that you are running If you have Using And your desired Then use the Logix5000 profile Comment module firmware functionality is revision cn Versions earlier than 15 gt Thin profile tags only Tag user interface only rigina 1 x see era below Version 15 and later gt Full profile support Tags with a GUI interface Versions earlier than 15 gt Thin profile tags only Exact Match Keying Series Original Versions 15 17 gt Full profile support CIGESEBBDREBO n see Important below
5. TIP The different operational modes are detailed on page 17 in Chapter 2 Follow these steps to choose Counter and Storage mode options 1 On the Modules Properties dialog box click the Counter Configuration tab Rockwell Automation Publication 1756 UM007C EN P November 2011 66 Configure the 1756 HSC Module The Counter Configuration dialog box appears The dialog box is divided into two halves one each for the respective channel 0 1 inputs E Module Properties Report Local 1 1756 HSC B 3 1 General Connection Module Info Counter Configuration Qutput Configuration Backplane Counter 0 Operational Mode Counter 1 Operational Mode Counter Mode S Counter Mode Encoder x1 Mode Encoder 4 Mode Counter Not Used Frequency Mode Rij Period Rate Mode Continuous Rate Mode Preset U Scaler o Status Offline C Use Filler Z Counter Mode Storage Mode No Store Mode Rollover 0 C Use Filter A C Use Filter B Preset 0 C Use Filter Z Scaler Invert Z Value 2 Choose counter parameters in the Counter Configuration tab Field descriptions and procedures apply for both channel 0 and channel 1 Field Operational Mode Description Choose an operational mode based on your application requirements These are the values Counter Mode default Encoder x1 Mode Encoder x4 Mode Counter Not Used Freq
6. You must run RSNetWorx software to enable 1756 HSC modules in a remote ControlNet networked chassis Running RSNetWorx software transfers configuration data to networked modules and establishes a network update time NUT for the ControlNet network that is compliant with the desired communication options specified for each module during configuration If you are not using 1756 HSC modules in a networked ControlNet chassis running RSNetWorx software is not necessary However anytime a controller references a 1756 HSC module in a networked chassis RSNetWorx software must be run to configure the ControlNet network In an Ethernet netwotk with a multicast connection a module sends new data when prior data has not been transferred for one quarter of the RPI For example if data is being sent every 10 ms and the RPI is set at 100 ms the data transfer rate is every 30 ms Rockwell Automation Publication 1756 UMO007C EN P November 2011 Configure a 1756 HSC B Module by using RSLogix 5000 Software Version 18 and Later Configure the 1756 HSC Module 59 Use the Default Configuration 1756 HSC modules in the same chassis as the controller are ready to run as soon as the program download is complete The default configuration for your module is the Counter operational mode with none of the outputs tied to counters If you choose to write a specific configuration for your application you must access the module tags and change configura
7. fub cy Rockwell Automation Publication 1756 UMO007C EN P November 2011 60 Configure the 1756 HSC Module The Select Module dialog box appeats Wil Select Module E Analog Communications Controllers Digital Drives Motion Other Specialty 1756 CFM A 1756 HSCJ A 1756 HSC B 1756 PLS B Configurable Flow Meter 1756 High Speed Counter 1756 High Speed Counter 1756 Programmable Limit Switch Allen Bradley Allen Bradley Allen Bradley Allen Bradley Find Add Favorite By Category By Vendor Favorites OK Cancel Help A 2 Click the next to Speciality for a list for this module group 3 Select 1756 HSC B and click OK The New Module dialog box appears New Module Type 1756 HSC B 1756 High Speed Counter Vendor Allen Bradley Parent Local Description ane 1756 HSC Modue Sic mE i Comm Format HSC Data SC Data Revision HSC Data Extended Listen Only X xtended Listen Only HSC Data pen Module Properties 4 In the Name box type a module name 5 In the Slot box enter the module s slot number 6 In the Description box type an optional description for the module Rockwell Automation Publication 1756 UMO007C EN P November 2011 Configure the 1756 HSC Module 61 7 From the Comm Format pull down menu choose a communication format See page 62 for a d
8. Appendix B Configuration Output Input 1756 HSC Module Configuration Tags 1756 HSC Data Structures There are three categories of 1756 HSC data structures Configuration structure of data sent from the controller to the 1756 HSC module upon powerup or user initiated reconfigure command that defines the HSC module behavior Output structure of data continually sent from the controller to the 1756 HSC module that can modify the 1756 HSC module behaviot Input structure of data continually sent from the 1756 HSC module to the controller containing the current operational state of the 1756 HSC module This section describes the tags that comprise each of these data structures Confi guration Structure You must use configuration tags to alter module configuration The table lists and defines 1756 HSC module configuration tags IMPORTANT Some of the tags in the table below are followed by an x ora y The x indicates the same tag information applies for Channel 0 and Channel 1 on the 1756 HSC module The y indicates the same tag information applies for the four outputs 0 3 on the 1756 HSC module Name Data Style Definition Change Type During Operation C ProgToFaultEn BOOL Determines outputs state if connection is lost when the Yes owner controller is in Program mode 0 Outputs use Program mode settings Outputs use Fault mode settings C Rollover x DINT Decimal Des
9. in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector Worn contacts may create electrical resistance that can affect module operation Rockwell Automation Publication 1756 UMO007C EN P November 2011 54 Install and Wire the ControlLogix High speed Counter Module 1 Push in the top and bottom locking tabs Rockwell Automation Publication 1756 UMO007C EN P November 2011 Chapter 5 Introduction ControlLogix Overview Configure the 1756 HSC Module This chapter describes how to configure the 1756 HSC B module firmware revision 3 x by using RSLogix 5000 programming software version 18 and later Your 1756 HSC module will not work until it has been configured See Appendix C for profiles of the 1756 HSC A The instructions include firmware revisions 1 x and 2 x and RSLogix 5000 software versions 15 18 IMPORTANT RSLogix 5000 programming software must be installed on your computer to complete the procedures for both default and custom configurations For software installation instructions and to learn how to navigate the software package see the RSLogix 5000 Getting Results Guide publication 9399 RLD300GR Tope S Pae Contrologi
10. 108 12 to 24V Ssmple ended Driver v bes Re RAS 109 Opemtollectof vos eroi dieere e NIC P ee aes 110 Electromechanical Limit Switch La octer ies ht rr ld 111 Output Circuits o Lee wb e des PES ex ds REESE E 112 Application Considerations i i css d ces e Ape e ORE 113 Inputtable Lectin eom teo Hr eC P Pet een UI 113 Totem pole Output Devices iot e Edo ees 113 Cable Impedance srann i rdc eee tin dl tr ta P Me s oed 114 Cable Capac tance sta to dd A pude e e ea a Vane ftdt 114 Cable Length and Frequency 22i eee mcd 114 P desk de optavit rip che gar vtt eto bau hod bac fear a be ina od 115 Shika eee te hh EPA dU EUR P eS MEY ae EE aT UE 123 Publication 1756 UMO007C EN P November 2011 8 Table of Contents Publication 1756 UM007C EN P November 2011 About This Publication HSC Module Firmware 3 x Configurations Preface The 1756 High speed Counter module counts incoming pulses from pulse generators counters limit switches and other devices and can either return a count to the controller or activate on board outputs for a specific action depending on your application In the rest of this manual we refer to the High speed Counter module as the 1756 HSC module The chapters in this manual focus on the configuration and operation of a ControlLogix 1756 HSC B module firmware revision 3 x or later using RSLogix 5000 software version 18 or later Additional capabilities of the 1756 HSC module are highlighted in the appendic
11. 777 214 0 Output y OffValue DINT Decimal Designates the value at which an output turns Off Yes Values are 0 16 777 214 O Output y ToThisCounter SINT Decimal Designates counter to which this output is tied Yes 0 Not tied to counter e 1 Tied to counter 0 2 Tied to counter 1 0 Output y FaultMode SINT Decimal Selects the behavior this output takes if a controller Yes fault occurs 0 Outputs turn Off 1 Outputs turn On 2 Counter continues to determine outputs operation O Output y ProgMode SINT Decimal Selects the behavior this output takes when the owner Yes transitions into Program mode 0 Outputs turn Off 1 Outputs turn On 2 Counter continues to determine outputs operation If this setting is ever seen by the module as a non zero value it will override the corresponding configuration tag setting See page 22 and page 23 in Chapter 2 for details Rockwell Automation Publication 1756 UMO007C EN P November 2011 1756 HSC Module Input Tags CommStatus Type DINT 1756 HSC Data Structures 91 Input Structure You must use input tags to monitor module status The table lists and defines 1756 HSC module input tags IMPORTANT Some of the tags in the table below are followed by an x Style Decimal ora y The x indicates the same tag information applies for Channel 0 and Channel 1 on the 1756 HSC module The y indicates the sam
12. E x General Connection Module Info Backplane Requested Packet Interval RPI box ms 0 2 750 0 ms Inhibit Module Major Fault On Controller If Connection Fails While in Run Mode Module Fault Status Offline 11 Use the default RPI value and check Inhibit Module 12 Click OK 13 On the Controller Organizer right click I O Configuration and choose New Module Add a 1756 HSC module and assign it to an unused chassis slot in your I O Configuration tree This module will not be used but the configuration of this profile will aid later in the configuration of the generic module Rockwell Automation Publication 1756 UM007C EN P November 2011 98 1756 HSC Module History 14 15 16 Click OK The laddet logic in your RSLogix 5000 project will copy the module configuration from this profile to the generic profile Click OK Save the project Copy ACD file 1 2 Open the copied ACD file in a new instance of RSLogix 5000 software In the Controller Organizer of the sample project extend the User Defined Data Types to view the 1756 HSC data types za Types zi User Defined H5C COMFIG STRUCT 1 HSC IN STRUCT i HsC OUT ONOFF STRUCT 9 HSC OUT STRUCT s32 s2 Copy and paste each of the User Defined Data Types UDTS one at a time into your RSLogix 5000 project Do one of the following to create tags and specify the appropriate 1756 HS
13. On The internal 4 MHz count continues incrementing until 40 000 counts whereupon the pulse goes low and resets the 4 MHz count to zero and the cycle repeats In both Period Rate and Continuous Rate the Present Value Stored Value and Totalizer tags are updated at the end of the sample period See page 36 for square wave examples in Period Rate and Continuous Rate modes Rockwell Automation Publication 1756 UMO007C EN P November 2011 36 Frequency Modes i i The following square waves illustrate the difference between Period Rate and eriod hate LONTINUOUS 8 Sq Continuous Rate frequency operational modes All square waves were initiated Rate Output Examples by applying a 50 Hz signal at the Input Z terminal of a counter configured for either Period Rate or Continuous Rate The output configuration remained constant with an On value of 20 000 counts and an Off value of 80 001 counts Only the Scaler mode was varied to show the operation of the two modes Outputs in Period Rate and Continuous Rate with Scaler 1 50 Hz at Z Input Counter 5096 Duty Cycle Idle Scaler Tag 1 Counter Times Width of Pulse 4 MHz Count in Present Value Tag 40 000 Output State in Period Rate Scaler Tag 1 Output OnValue Tag 20 000 Output OffValue Tag 80 001 4 MHz Count 40 000 Output State in Continuous Rate 4MHz Count 4 MHz Count 20 000 40 000 Scaler Tag 1 Output OnValue 20 000 Output OffValue 80 001 Outputs in
14. Period Rate and Continuous Rate with Scaler 2 50 Hz at Z Input 5096 Duty Cycle Scaler Tag 2 What the Counter Sees Internally With Counter Idle Scaler Tag 2 Counter Times Width of Pulse 4 MHz 80 000 Output State in Period Rate 4 MHz Count 80 000 Scaler Tag 2 Output OnValue Tag 20 000 Output OffValue Tag 80 001 Output State in Continuous Rate 4 MHz Count 4 MHz Count 20 000 80 000 Scaler Tag 2 Output OnValue 20 000 Output OffValue 80 001 12633 I Rockwell Automation Publication 1756 UMO007C EN P November 2011 Frequency Modes 37 Outputs in Period Rate and Continuous Rate with Scaler 4 SUAUU 50 Hz at Z Input 5096 Duty Cycle Scaler Tag 4 What the Counter Counter Idle www L Scaler Tag 4 Counter Times Width of Pulse 4 MHz 160 000 Output State in Period Rate Scaler Tag 4 Output OnValue Tag 20 000 Output OffValue Tag 80 001 4 MHz Count 160 000 4 MHz Count 160 000 Output State in Continuous Rate 4 MHz Count 4 MHz Count 4MHz Count 4 MHz Count 4 MHz Count 20 000 80 000 20 000 80 000 20 000 Scaler Tag 4 Output OnValue 20 000 Output OffValue 80 001 12634 Maximum Frequency A module is capable of counting up to 16 million counts However the maximum rate at which the counter can accept counts depends on the type of signal directly connected to the module The table lists the acceptable signal levels
15. Rockwell Automation Publication 1756 UMO010B EN P November 2011 removable terminal block RTB 1756 TBCH cage clamp 46 1756 TBE extended housing 47 1756 TBS6H spring clamp 46 connecting wiring 44 installing 51 removing 52 using Belden 9182 cable 44 using with the housing 50 wiring recommendations 47 wiring the cage clamp RTB 46 wiring the spring clamp RTB 46 removing the chassis 53 reporting module faults 32 rollover value mode 18 22 RPI setting 64 RSLogix 5000 changing module tags 104 configuration data structure 87 diagnostics 82 downloading configuration data 79 input data structure 87 91 output data structure 87 89 reporting faults 82 RTB 1756 TBCH cage clamp 46 1756 TBE extended housing 47 1756 TBS6H spring clamp 46 keying 42 recommendations 47 types 46 using Belden 9182 cable 44 wiring recommendations 47 wiring the cage clamp RTB 46 wiring the spring clamp RTB 46 S sample period 31 33 scaler tag Index 125 sample period 31 sensor compatibility 11 signal rates 68 software configurable modes filter A 19 filter B 19 filter Z 19 preset value 18 rollover value 18 22 spring clamp wiring the RTB 46 storage modes store and continue 24 store and reset and start 23 25 store and reset wait and start 23 25 store wait and resume 23 24 store count 23 T tying outputs to counters 27 U UL certification 13 W wiring Allen Bradley 845 incremental encoder 47 Allen Bradley bulletin 872 th
16. Version 18 and later gt Select Major Revision 2 __ and HSC Data Comm Format 2 x Versions earlier than 18 gt Use generic profile HSC Tags with a GUI c ACD File interface Rollover and Preset e gam in Output Tags Version 18 and later gt Select Major Revision 2 Tags with a GUI and HSC Data extended Comm Format interface Totalizer tags not active Versions earlier than 15 gt Thin profile tags only Exact Match Keying Original Versions 15 17 gt Full Profile Support npt supporten ise mponiant helbi Version 18 and later gt Select Major Revision 3 Series and HSC Data Comm Format B 7 7 l 3x Rollover and Preset Versions earlier than 18 gt Use generic profile HSC in Output Tags Period Continuous Rate Totalizer 1 File is located at http samplecode rockwellautomation com ACD File Version 18 and later gt Select Major Revision 3 and HSC Data extended Comm Format IMPORTANT Original represents the four primary modes of operation initially designed for the 1756 HSC A module firmware revision 1 x These modes are Counter Encoder x1 Encoder x4 and Frequency Rockwell Automation Publication 1756 UM007C EN P November 2011 94 1756 HSC Module History 1756 HSC Profile Overview There are three profiles available for programming your 1756 HSC module depending on your module s firmware software and the desired functionality As shown in the tab
17. a inspection par les autorites locales qualifiees au moment de l installation of installation EXPLOSION HAZARD WARNING Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous Secure any external connections that mate to this equipment by using screws sliding latches threaded connectors or other means provided with this product e Substitution of components may impair suitability for Class Division 2 e f this product contains batteries they must only be changed in an area known to be nonhazardous RISQUE D EXPLOSION Couper le courant ou s assurer que l environnement est classe non dangereux avant de debrancher l equipement Couper le courant ou s assurer que l environnement est classe non dangereux avant de debrancher les connecteurs Fixer tous les connecteurs externes relies a cet equipement a l aide de vis loquets coulissants connecteurs filetes ou autres moyens fournis avec ce produit a substitution de composants peut rendre cet equipement inadapte a une utilisation en environnement de Classe I Division 2 e S assurer que l environnement est classe non dangereux avant de changer les piles ATTENTION Prevent Electrostatic Discharge This equipment is sensitive to electrostatic discharge which can cau
18. ah rw exte oae Pers d rad 82 Fault Type Determination 2 eor E b ex ea eR IER 84 Troubleshoot the 1750 HSC Module ol P espere 84 Appendix A TPC OM da etri etel av ote Ta re CLP Tx o PCI 85 Status Indi galOEso c desees De tcv hae ed eee eai et 85 Appendix B Configuration Output INU 455 s s aor ce edited d put canal 87 Publication 1756 UM007C EN P November 2011 1756 HSC Module History Application Considerations Glossary Index Table of Contents 7 Configuration Structure ciam pr Pea ROC EATUR HOHER tees C Lord 87 Ciutputsotbactite eene ote ed eddie esci hc qute bea 89 Tr SUEDCDOHE Scar Seo esM eps teda A Mcd cp AL fr 91 Appendix C EEO CMC OR ose edad eels Da Me Ete a faa ce erts 93 1756 HSG Profile Overview soci ia re eoa hee wage 94 Configure a Generic Profile cec unc ee s ceat ew oer 95 Copy ACD fl r i pinia ESR pecore E eet tee is G2 98 Add Ladder Logic Routines i41 cure vp dm aia On Rd d 99 Upgrade Module to Software Version 18 and Later 101 Edit Thin Profile Taps stent So SS x EAE RE Medi dea 102 Change Configuration Data via Message Tasttuctom ho boss dues MU Ex accu leue Tut a db AM uk 104 Appendix D Introduction P C E TEC 105 Types of Input Devices s Lieoiadtciete had beet tat aa e dedo dos 105 Examples for Selecting Input Devices si ee eR s 106 CAFCUIE OVE vocent a eb ice ede Po x o d 106 Detailed Circuit Analysts v unies kr RR Rt RT NA Fawn 107 5V Differential Line Driver Example een
19. ended Driver When a signal is applied to the 5V inputs pins 15 and 16 in the graphic the limiting resistance is 150 Q If 5 0V was applied at the input the current demanded would be 5 0 2 0 150 20 mA Rockwell Automation Publication 1756 UMO007C EN P November 2011 Application Considerations 107 The previous calculation is necessary because the driving device must cause a minimum of 5 mA to flow through the photodiode The optical isolator manufacturer recommends a maximum of 8 mA to flow through the photodiode This current could be exceeded in the 24V position To obtain this limit a DC shunt circuit is included consisting of D1 O1 R5 and R6 If the photodiode current exceeds about 8 mA the drop across R5 R6 will be sufficient to turn Q1 on and any excess current will be shunted through D1 and Q1 instead of through the photodiode If the driving device is a standard 5V differential line driver D2 and D3 provide a path for reverse current when the field wiring arm terminal 1 is logic low and terminal 2 is logic high The combined drop is about the same at the photodiode about 1 4V The circuit appears more symmetrical or balanced to the driver as opposed to just one diode Detailed Circuit Analysis In the previous example we used a constant 2 0V drop across the photodiode and R5 R6 To calculate the true photodiode current consider the photodiode D1 Q1 R5 and R6 as one circuit The voltage drop across D1 a
20. gauge wiring See Appendix D for cable considerations The following sections provide details about wiring terminations to specific products Wire an Allen Bradley 845 Incremental Encoder Use the table and diagram to connect the 1756 HSC module to an Allen Bradley 845 incremental encoder Differential Line White A1 5V DC Blue B1 5V DC Green Z1 5V DC Driver Output Black of white Black of blue B1 Black of green Z1 40 mA AtReturn Return Return EXE d Allen Bradley Z0 12 24V Z1 12 24V a V l m i us 7 2 Green Bulletin 845 5v i 5V Black Incremental Z0 RET g 6 5 Z1 RET Encoder BO 12 24V 8 7 B1 12 24V B ue BO 5V cpi 96 B1 5V fT BO RET epo we mm Black YY A0 12 24V Cpu 138 A1 12 24V Whit Ite iod ED RENI ee cud Differential Line AO RET Dis vE A1 RET Driver Output Not Used 20 19 Not Used Not Used giz 2116 Not Used Not Used 24 23 Not Used Out 0 1 26 25 Out 2 Out 1 28 27 Out 3 COMMON 0 30 29 COMMON 1 COMMON 0 iia si COMMON 1 COMMON 0 34 33 CD COMMON 1 DC 0 4 CD 36 35 CD DC 1 C5 41601 Rockwell Automation Publication 1756 UMO007C EN P November 2011 48 Install and Wire the ControlLogix High speed Counter Module Wire an Al
21. nos Accumulated count 6 Frequency occurring in sample period Continuous Rate Modes where frequency controls the outputs 2 B input state defines direction Counter mode 3 Rollover Preset settings apply See 1756 HSC Data Structures in Appendix C for a list of tags Rockwell Automation Publication 1756 UM007C EN P November 2011 Encoder and Sensor Compatibility 1756 HSC B Module Features 1756 HSC Module Features 13 The most common applications using the 1756 HSC module also use the following Allen Bradley products Allen Bradley 845 incremental encoder Allen Bradley Bulletin 872 three wire DC proximity sensor PHOTOSWITCH series 10 000 photoelectric sensor Additional encoders and sensors may be connected to and used with the ControlLogix 1756 HSC module For specific compatibility of other encoder and sensor compatibility check the user publications for each product or consult your local Allen Bradley representative The table shows the type of encoder or sensor that you can choose for your module Pulse Width Min Frequency Range Leakage Current Proximity 500 ns 1 MHz 250 uA Q 5V DC Quad Encoder 2 us 250 kHz 250 uA Q 5V DC This table highlights features of the 1756 HSC B module Feature Real time manipulation of preset rollover tag settings Description Preset and Rollover tags which provide a reference point to start the count and reset the count to zero respe
22. paths for power or data signals to which several devices may be connected at the same time A bus may have several sources of supply and or several sources of demand 1 A communication link with a single channel whose signal modulates a carrier frequency Example Data Highway II link 2 Contrasted with broadband link page 115 and baseband link page 115 A series connection of amplifier stages or links in which the output of one stage feeds the input of the next A programming technique of using multiple timers and ot counters to extend the range of the timer or counter beyond the maximum values that may be accumulated in a single instruction A path for a signal Several channels may share a common link A hardware assembly that houses devices such as I O modules adapter modules processor modules and power supplies Format that defines the type of information transferred between an I O module and its owner controller This format also defines the tags created for each I O module An electronic keying protection mode that requires the physical module and the module configured in the software to match according to vendor catalog number and major revision In this case the minor revision of the module must be greater than or equal to that of the configured slot The arrangement and interconnection of hardware components within a system and the hardware switch and jumper and software selections that determine the operatin
23. position Input Z 1s used in Encoder mode only if a Store Count mode is enabled See page 23 for details on the storage modes Encoder x4 Mode Input A Input Z optional Quadrature Encoder EU iron eas us J 1756 HSC Module B Leads A 90 A Leads B 90 mnn I I 1 roto poop o 1 1 1 112 sla Jos ria 9 io i2 11 ws e fe s s 3 2 1 fo Positive Frequency Negative Frequency S Maximum frequency in Encoder x1 and x4 modes 250 kHz assuming 50 duty cycle with a minimum pulse width at this frequency of 2 us The module assumes a 90 phase A B difference between channels Rockwell Automation Publication 1756 UMO007C EN P November 2011 22 Counter Modes Preset Each of the two counters has one preset value associated with it In the Encoder or Counter modes the preset value represents a reference point or value from which the module begins counting The module can count either up or down from the preset value The preset value itself is entered during module configuration However you must enter a preset command from either the RSLogix 5000 programming software or ladder logic before it becomes active Setting the Preset Enable Bit in the Output tag to 1 will send the preset value to the Present Value tag Preset values are entered on the Counter Configuration tab of the Module Properties dialog box See page 65 for an example of the Counter Configuration tab Preset in Output tag When using
24. that creates and stores the primary configuration and communication connection to a module 1 The length of time for a cyclical operation to complete one full cycle For example the length of time from one point in a cyclical wave form to the same point in the next cycle of the wave form 2 Compare duration page 117 and interval page 119 A device that converts available power to a form that a system can use usually converts AC power to DC power Intelligent data exchange system devices in which the HSC module produces data without having been polled first Devices that need the data consumers recognize the data they need and consume it Therefore data only needs to be sent out on the network in a single message no matter how large the number of nodes to which it needs to go In this mode the controller program is not executing Inputs are actively producing data Outputs are not actively controlled and go to their configured Program mode state A switch sensor that is actuated when an actuating device is moved near it without physical contact A momentary sharp change in voltage current or light from its quiescent condition Separation in phase by 90 Used on single channels of feedback devices such as encoders and resolvers to detect the direction of motion An I O connection where the controller establishes an individual connection with I O modules in a remote chassis 1 I O connected to a processor acro
25. the HSC Data extended Comm Format while configuring the module the Preset tag will be found in both the Configuration and Output tag areas The Configuration tag value is populated during software configuration with the Logix5000 controller and sent to the module upon powerup defining its behavior This value will continue to define module behavior as long as the corresponding tag in the output area is zero If the value of the Preset tag in the output area is changed to a non zero value the module will disregard the value sent from the configuration area and use the value in the output area instead This facilitates easier real time on the fly changes to the preset function Rollover Each of the two counters has one rollover value associated with it When the accumulated count value in the Rollover tag teaches the rollover value it resets to zero 0 and begins counting again The rollover value is circular for example if the rollover value 360 the count will be from 358 359 0 1 and so forth in a positive direction and from 1 0 359 358 and so forth in a negative direction Rollover values are entered on the Counter Configuration tab of the Module Properties dialog box in the RSLogix 5000 programming softwate or can be changed in ladder logic See page 65 for an example of the Counter Configuration tab Rockwell Automation Publication 1756 UMO007C EN P November 2011 Counter Modes 23 Rollover in Output t
26. the number of sampled pulses from the 4 MHz clock decreases Because accuracy is related to the number of 4 MHz pulses received over the sample period the accuracy will decrease with increasing input frequencies at the Z input The decrease in accuracy can be lessened by scaling the input frequency through the use of the Scaler tag The Scaler configuration allows the incoming pulse train at the Z input to be divided by a user defined number The internal 4 MHz pulses are counted for the duration of an input pulse or multiple pulses if the Scaler is gt 1 Measuring multiple input periods increases the accuracy of your measurement Acceptable numbers for the scaler are 1 2 4 8 16 32 64 and 128 There is one Scaler value for each counter The default value for each Scaler is 1 a 0 is equivalent to 1 Sample Period for Period Continuous Rate Modes In Period and Continuous Rate modes the Scaler value defines the number of half cycles of the incoming pulse train that comprises the sample period The 4 MHz count value in the Present Value tag is incremented within the pulse train set by the Scaler tag The length of the sample petiod in time will vary with the incoming frequency The lower the incoming frequency the longer the time 1 4 5 juu 2 3 a 50 duty cycle is required for accurate Frequency calculations when using a scaler of 1 4 MHz count value
27. the wiring to the RTB IMPORTANT We recommend you ground the drain wire at the field side If you cannot ground at the field side ground at an earth ground on the chassis as shown below 1 Remove a length of cable jacket from the connecting cables 2 Pull the foil shield and bare the drain wire from the insulated wire e 4 f 20104 M 3 Twist the foil shield and the drain wire together to form a single strand 4 Attach a ground lug and apply heat shrink tubing to the exit area Rockwell Automation Publication 1756 UMO007C EN P November 2011 Install and Wire the ControlLogix High speed Counter Module 45 4mor5m 10 or 12 4 Star Washer g 4m or 5 m 10 or 12 Phillips Screw and Star Washer or SEM Screw Functional Earth Ground Symbol A 20918 M O 5 Connect the drain wire to a chassis mounting tab Use any chassis mounting tab that is designated as a functional signal ground The functional earth ground symbol appears near the tab 6 When the drain wire is grounded connect the insulated wires to the field side Connect Ungrounded End of the Cable Follow these directions to connect the ungrounded end of the cable 1 Cut the foil shield and drain wire back to the cable casing and apply shrink wrap 2 Connect the insulated wires to the RTB Rockwell Automation Publication 1756 UM007C EN P November 2011 46 Install and Wire the ControlLogix High speed
28. to count pulses An encoder uses both input A and input B to count pulses The relationship between the two channels is how the encoder determines if the count is positive clockwise or negative counterclockwise Rockwell Automation Publication 1756 UMO007C EN P November 2011 12 1756 HSC Module Features This user manual also details the Frequency operational modes that are available depending on which one is required for your application Frequency can be calculated in one of three ways frequency rate measurement petiod rate continuous rate All three Frequency modes determine the frequency of input pulses by counting pulses over a user defined time interval If the revolution is spinning in a clockwise direction the frequency is positive in a counterclockwise direction it s decreasing negative frequency See page 29 for more details on Frequency modes Pulse counts and frequency values are stored in one of three input tags based on the mode as shown in the table Mode and Input Tag Values for the 1756 HSC B Module Comm Format HSC Data extended Tags Mode Mode Description Present Value Stored Value Totalizer 0 Counter 1 Encoder X1 Accumulated count Stored value Directional frequency 2 Encoder X4 3 Counter Not Used N A N A N A 4 Frequency No of input pulses occurring Accumulated count Rate Measurement in sample period 5 Frequency Period Rate No of 4 MHz pulses RPM
29. 5000 prior to V15 because there was no configuration wizard available The DUMMY HSC can be placed in any empty slot and should always be inhibited Counter 0 16777214 Freq Must be 0 S Synchronous Copy File Source Local 5 C RollOver 0 Dest HSC CONFIG RollOver 0 Length 112 O Outputs Remain in PROG Mode State 1 Outputs Go to Fault Mode State Local 5 C ProgToFauttEn HSC_CONFIG ProgToFaultEn gt This rung will move data to from the HSC UDTs to the I O tags that are associated with the revision 2 1 HSC currently in slot 4 The tag layout in the UDTs will match the tag layout of the future versions of RSLogix5000 that will support the new features as an inherent profile These tags will facilitate any transitions in the future O Outputs Remain in PROG Mode State 1 Outputs Go to Fault Mode State HSC_CONFIG ProgToFaultEn Locat4 C Data 1 0 SSS PS PS PS Synchronous Copy Synchronous Copy Synchronous Copy File Source Locat 4 1 Source HSC_OUT Source HSC_CONFIG RollOver 0 Dest HSC IN Dest Local 4 0 Dest Local 4 C Data 4 Length 1 Length 1 112 3 Paste the rungs into a routine of your 1756 HSC project 4 If you are using RSLogix 5000 software version 13 or earlier or you did not add an unused 1756 HSC module in step 13 delete rung 1 of the copied and pasted ladder logic If you do not leave the unused 1756 HSC module in your project or you have no other 1756 HSC module in you
30. 7 18 19 20 w io 2 23 24 fio 1 2 3 4 A A M d Ju Tn 1 5 5 5 5 5 In the Store and Reset and Start mode the module 44903 reads the Present Value and places it into the Stored Value on the leading edge of Input Z and resets the count to zero 0 in Present Value resumes counting from zero 0 regardless of the state of the Z input retains the Stored Value until it is overwritten by new data from the next leading edge of a pulse on Input Z Rockwell Automation Publication 1756 UMO007C EN P November 2011 26 Counter Modes Outputs You have the option of selecting either the rising or falling edge of the gate reset pulse When the Invert Z Value box is checked on the Counter Configuration tab the state of the Z input is reversed as illustrated in the four Store modes For example in the Store and Reset and Start mode using the Invert Z the falling edge of the pulse on Input Z will store the count value in the Stored Value tag and reset the Present Value tag to zero The counter continues to count while the gate pin is low or high but the present value is reset to zero 0 on the next falling edge of Input Z The module has four outputs isolated in pairs 0 and 1 2 and 3 Each output 1s capable of sourcing current from an externally supplied voltage up to 30V DC You must connect an external power supply to each of the output pairs The outputs can source 1
31. 7C EN P November 2011 40 Install and Wire the ControlLogix High speed Counter Module North American Hazardous Location Approval The following information applies when operating this equipment in hazardous locations Products marked CL I DIV 2 GP A B C D are suitable for use in Class Division 2 Groups A B C D Hazardous Locations and nonhazardous locations only Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code When combining products within a system the most adverse temperature code lowest T number may be used to help determine the overall temperature code of the system Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time Informations sur l utilisation de cet equipement en environnements dangereux Les produits marques CL I DIV 2 GP A B C D ne conviennent qu a une utilisation en environnements de Classe Division 2 Groupes A B C D dangereux et non dangereux Chaque produit est livre avec des marquages sur sa plaque d identification qui indiquent le code de temperature pour les environnements dangereux Lorsque plusieurs produits sont combines dans un systeme le code de temperature le plus defavorable code de temperature le plus faible peut etre utilise pour determiner le code de temperature global du systeme Les combinaisons d equipements dans le systeme sont sujettes
32. A DC and are hardware driven They turn On ot Off in less than 50 us when the appropriate count value has been reached Assign Outputs to Counters By using configuration tags or the RSLogix 5000 software defaults you can assign the outputs on the module to any of the various counters You can assign as many as two outputs to a given counter However an output may be assigned only once to a countet it s not possible to use the same output with two different counters Each output on the 1756 HSC module can be turned On and Off at your discretion The operation of outputs tied to a counter on the Output Configuration tab of the Module Properties dialog box are performed independently from the controller scans Output Operation When the outputs for the module are enabled and assigned to a counter they operate in an On Off fashion Up to two On Off windows may be used for each output The outputs use a comparison of the Present Value to the values you have programmed in one or both of the following tags First Value Output Turns On and First Value Output Turns OFF Second Value Output Turns ON and Second Value Output Turns OFF Rockwell Automation Publication 1756 UMO007C EN P November 2011 Counter Modes 21 For example the Output Turns ON tag is set for a value of 2000 and the Output Turns OFF tag is set for a value of 5000 2001 4999 Accumulated Count 2000 lios 5000 in Present Value Tag Se 10686 In the
33. C module UDTs for each HSC_CONFIG HSC IN STRUCT and HSC OUT STRUCT Define Your Own Tags a To define your own tags double click Controller Tags on the Controller Organizer b Click the Edit Tags tab at the bottom of the Controller Tags window c In the blank entry field at the bottom of the window enter your tag name and data type Use Default Tags from RSLogix 5000 Software a To use default tags from RSLogix 5000 which were imported from the sample download at the start of these procedures double click Controller Tags on the Controller Organizer Rockwell Automation Publication 1756 UMO007C EN P November 2011 1756 HSC Module History 99 b Click the sign to expand and review each of the three UDTs HSC_CONFIG HSC IN STRUCT HSC OUT STRUCT T Name Value ForeMak Style HSC_CONFIG HSC_CONFIG_S HSCCONHGPglofad 0 Decimal 800L F HSC CONFIG RolOver s Decimal DINT ZI Hr HSC CONFlG Preset ale le wie 4 1 DINT Z 1 Decimal INT 2 FE HSC_CONFIG Operational TOS 1 Decmal HSC CONFIG SterageMode ten Decimal SINT 2 H HSC COMFlGZIrvet 0l FHSCCONTIGFimA 0 FE HSC CONFIG FilterB FE HSC CONFIG Filteiz Decimal Decimal Decimal Decimal SINT OQ HSC_IN ond HSC IN CemmStatus 0 SEHSC_INPresentValue fs ot FHSCINStoredvaue ft F HSC I
34. Counter Module Two Types of RTBs each RTB comes with housing Cage clamp catalog number 1756 TBCH 1 Insert the wire into the terminal 2 Turn the screw clockwise to close the terminal on the wire 20859 M Spring clamp catalog number 1756 TBS6H 1 Insert the screwdriver into the outer hole of the RTB 2 Insert the wire into the open terminal and remove the screwdriver i a Ji fam m i JB Wey eee e eae EX 20860 M mu The ControlLogix system has been agency certified using only the ControlLogix RTBs catalog numbers 1756 TBCH 1756 TBNH 1756 TBSH and 1756 TBS6H Any application that requires agency certification of the ControlLogix system using other wiring termination methods may require application specific approval by the certifying agency Rockwell Automation Publication 1756 UMO007C EN P November 2011 Wire Terminations Install and Wire the ControlLogix High speed Counter Module 41 Recommendations for Wiring Your RTB We recommend that you follow these guidelines when wiring your RTB 1 Begin wiring the RTB at the bottom terminals and move up 2 Use a tie to secure the wires in the strain relief bottom area of the RTB 3 Order and use an extended depth housing catalog number 1756 TBE for applications that require heavy
35. N Tdtalzer F HSC_IN WasRese a Bem HSC_IN NewD ctaFlag i E HSC_IN OutputStete 0 ERSE Nivere 1 F HSC IN CST Timestamp CIR Decimal Decimal Decimal Decimal Decimal Decimal Decimal Decimal Decimal Decimal DINT 2 TERT m E HSC DUT LeadPreset o Decimal fF HSC DUT FiesetNewData HHSC OUT OutputControl Hoste dere FE HSC DUT FollU ver emat 1 Decimal H HSC_OUT Preset deed do DINT 2 EHSC_OUT Output ooo aol 0 o eal 000 HSC ouT_onoF HSC_OUT_STRU Decimal Add Ladder Logic Routines Ladder logic copies the module information from the user defined data types to the module defined data types Otherwise the controller and the 1756 HSC module will not be able to communicate Follow these necessary steps to copy the ladder logic routine from the example ACD file 1 On the Controller Organizer under Tasks double click Main Program Rockwell Automation Publication 1756 UMO007C EN P November 2011 100 1756 HSC Module History Rung 1 Rung 2 2 Double click the ACD file to access the ladder logic The purpose of this rung and the DUMMY HSC located in slot 5 is to allow you to take advantage of the configuration wizard for the HSC that was implemented in V15 This rung and the DUMMY HSC located in slot 5 should be deleted if using RSLogix
36. Off respectively Each pair First Value Second Value can be assigned to an output The values can be set for the rising or falling edge of the window depending on whether the Invert Z Value is active for an operational mode For example a pulse count could turn On at 100 counts and end at 200 counts or turn Off at 100 counts and turn back On at 200 counts Communications Failure When communications fail in Program Mode 3 Click OK Select the output s status if communication is severed between the module and its owner controller Rockwell Automation Publication 1756 UMO007C EN P November 2011 Copy Configuration C Output Rollover Preset Tags to Output 0 Tags Configure the 1756 HSC Module 71 The configuration procedures previously described populated the Configuration tags C in the controller memory Starting with firmware revision 2 for the 1756 HSC module some of these tags output preset and rollover are also populated in the Output tags O to facilitate real time changes of these parameters Howevet the duplication of tag data could result in values being overridden when the HSC Data extended Comm Format is selected IMPORTANT The override occurs for Fault mode Program mode output selections other than Off on the Output Configuration tab For example if the outputs are configured to turn ON when in Program mode in the configuration structure and that data is not copied into the output
37. Program Mode Outputs Tum OFF Communications Failure When communications fail in Program Mode Leave outputs in Program Mode state C Change outputs to Fault Mode state Status Offline 2 Choose output parameters in the Output Configuration dialog box Field Description Output Click one of four output buttons to configure the respective output Tie to Counter Choose a mode to determine if an output is tied to a counter These are the values Not Tied to Counter default Tied to Counter 0 Tied to Counter 1 Output State in Fault Mode Defaults to Off for both options These settings determine how you want the Output State in Program Mode behavior of the outputs if a fault occurs such as a connection loss These are the values Outputs Turn On Counter Continues to Determine Outputs Operation Important For firmware revision 2 and later a routine must be added in ladder logic to copy the configuration C output setting to the 0 output tags Otherwise the configuration setting will be overridden by the output tag for values other than Off See page 71 for ladder logic procedures Rockwell Automation Publication 1756 UMO007C EN P November 2011 70 Configure the 1756 HSC Module Field First Value Output Turns ON First Value Output Turns OFF Second Value Output Turns ON Second Value Output Turns OFF Description Type values to turn the selected output On and
38. SC Configuration words for Output Rollover and Preset to the Qutput words providing better synchronization between the Configuration and Output words If needed the user program should manipulate the values in the Configuration words for Output Rollover and Preset The rung s CPS instructions will then move them to the appropriate Qutput locations which will be dynamically sent to the module This rung does not affect the ability to make real time changes to the Output Rollover and Preset functions PS CPS Synchronous Copy File Synchronous Copy File PS Synchronous Copy File Source Local 3 C Output 0 Source Local 3 C Roll0ver 0 Source Local 3 C Preset 0 Dest Local 3 0 Output 0 Dest Local 3 0 RollO ver 0 Dest Local 3 O Preset 0 Length 4 Length 2 Length 2 The rung shown above copies the values in the HSC Configuration words for Output Rollover and Preset to the Output words providing better synchronization between the Configuration and Output words If needed the user program should manipulate the values in the Configuration words for Output Rollover and Preset The rung s CPS instructions will then move them to the appropriate Output locations which will be dynamically sent to the module This rung does not affect the ability to make real time changes to the Output Rollover and Preset functions 5 Save your program Upgrade Module to Software Version 18 and Later The following
39. TOSWITCH Series 10 000 Photoelectric Sensor 49 Assemble the Removable Terminal Block and Housing 50 Install the Removable Terminal Block 0 00005 51 Remove the Removable Terminal Block 000 52 Remove the Module fromthe CASSIS actas ate ese a SO A vega edi tenes de a t Het oat 53 Chapter 5 Inttoduc HOD amo cato n IER CIA ou hak ES D AG ete den ded 55 Controlbae Overview att t AE T E A AET A E id 55 Dit ct CoNNECHONS os ide vane doo p EE ER a 56 LocalCh ssis Operations cocus o siensesrpnssi e oi d edes 57 Remote Chassis Opetatiofi cx ever dcin Ober ere Re erbe 57 Use the Default Configuration ya cse e ee dc 59 Configure a 1756 HSC B Module by using RSLogix 5000 Software Version 18 and Later 0 0 59 Communication Format Options o ite et ebore aa 62 SEL RPI orsa pet e tut de enisi qae 64 Set Up Counter Conleutallofi i ee eec otio ao erroreen 65 Piller Selections tiie d er ERU o DRE PR RN 68 Set Up Output Configuration z oH tod vus Ae RECEN Rd 68 Copy Configuration C Output Rollover Preset Tags to Output O Taos Luc Le se Sains rch ELS E E xc o wa d guum d 71 Electronie Keying e vue Ut MOE EN seed UA A AL DE oe D Od 73 Download Configuration to the 1756 HSC Module 5 o undue Dirt kde aad Pe arise eh P Pieds ri Chapter 6 RCT ON ig sei esaa othe hs Sanat Mil etc orsa SR A vt Ea 81 1756 HSG Ettor Codes isards aX ERES Ses Maa eMe pa 81 RSLogix 5000 Diagnostics SV Lexetr
40. User Manual Allen Bradley ControlLogix High speed Counter Module Catalog Numbers 1756 HSC Allen Bradley Rockwell Software Automation Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment Safety Guidelines for the Application Installation and Maintenance of Solid State Controls publication SGI 1 1 available from your local Rockwell Automation sales office or online at http www rockwellautomation com literature describes some important differences between solid state equipment and hard wired electromechanical devices Because of this difference and also because of the wide variety of uses for solid state equipment all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable In no event will Rockwell Automation Inc be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment The examples and diagrams in this manual are included solely for illustrative purposes Because of the many variables and requirements associated with any particular installation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Rockwell Automation Inc with respect to use of information circuits equipment or software described in this
41. Z0 Z0 B0 BO BO A0 A0 5V AO RET Not used Not used Not used Out 0 Out 1 COMMON 0 COMMON 0 COMMON 0 DC 0 12 24V 5V RET 12 24V 5V RET 12 24V Z1 Connections Black A1 12 24V DC Jumper B1 12 24V DC White Z1 12 24V DC Blue A1 Return to B1 Return Blue Z1 Return og a Doon Cy ay PHOTOSWITCH Series 10 000 Photoelectric Sensor 10 30V DC Not used White 71 12 24V 71 5V 71 RET B1 12 24V B1 5V B1 RET A1 12 24V A1 5V A1 RET Not used Not used Not used Out 2 Out 3 COMMON 1 COMMON 1 COMMON 1 DC 1 Blue Jumper 12 24V DC Return 41603 Rockwell Automation Publication 1756 UM007C EN P November 2011 50 Install and Wire the ControlLogix High speed Counter Module Assemble the Removable Removable housing covers the wired RTB to protect wiring connections when the RTB is seated on the module Parts of the 1756 TBCH RTB example below are identified in the table Terminal Block and Housing Item 20858 M Description Housing cover Groove Side edge of RTB RTB ol A Wy N Strain relief area Follow these steps to att
42. a 1756 HSC module The communication format determines whether a controller owns or just listens to the information the type of configuration options that are available the tags that are generated during the initial configuration The following table describes the four communication formats available for the 1756 HSC B module Communication Format Description HSC Data Format used by an owner controller to invoke the original functionality for the 1756 HSC module Data format generates tag structures identical to those used by older revision 1 x HSC modules This format is compatible with revision 3 x HSC firmware but will limit the 1756 HSC module to revision 1 x functionality HSC Data extended Format used by an owner controller to invoke the 1756 HSC module for data enhancements in HSC revision 3 x Data extended format functionality includes Period Rate and Continuous Rate Frequency modes and dynamic control of Preset Rollover and Output On Off values Listen only HSC Data Format used by a controller to listen only to a 1756 HSC module that is using the HSC Data Comm Format that is configured by another controller Listen only Extended Format used by a controller to listen only to a 1756 HSC module that is using the HSC Data extended Comm Format that is configured by another controller See page 63 for specific modes and tags for the HSC Data and HSC Data extended Comm Formats Rockwell Auto
43. ach the RTB to the housing 1 Align the grooves at the bottom of each side of the housing with the side edges of the RTB 2 Slide the RTB into the housing until it snaps into place IMPORTANT If additional wire routing space is required for your application use the extended depth housing catalog number 1756 TBE Rockwell Automation Publication 1756 UMO007C EN P November 2011 Install and Wire the ControlLogix High speed Counter Module 51 Install the Removable These steps show how to install the RTB onto the module to connect the Terminal Block S WARNING When you connect or disconnect the Removable Terminal Block RTB with field side power applied an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding Before installing the RTB make certain e field side wiring of the RTB has been completed e the RTB housing is snapped into place on the RTB the RTB housing door is closed e the locking tab at the top of the module is unlocked 1 Align the top bottom and left side guides of the RTB with the guides on the module Top Guide Bottom Guide 20853 M 2 Press quickly and evenly to seat the RTB on the module until the latches snap into p
44. ag When using the HSC Data extended Comm Format while configuring the module the Rollover tag will be found in both the Configuration and Output tag areas The Configuration tag value is populated during software configuration with the Logix5000 controller and sent to the module upon powerup defining its behavior This value will continue to define module behavior as long as the corresponding tag in the Output area is zero If the value of the Rollover tag in the Output area is changed to a non zero value the module will disregard the value sent from the Configuration area and use the value in the Output area instead This facilitates easier real time on the fly changes to the Rollover function Input Z Gate Reset Input Z when active will change the behavior of an accumulated count value in the Present Value tag depending upon which of four modes is selected Store and Continue Mode Store Wait and Resume Store and Reset Wait and Start Store and Reset and Start The Storage modes are selected on the Counter Configuration tab on the Module Properties dialog box of the RSLogix 5000 programming software Storage Modes The store count feature allows the module to store the current count value and follow four behavioral paths depending on which Store mode is selected The stote count is triggered by the state of the Z input the gate on the module IMPORTANT The four modes can be changed while
45. applications This chapter provides an overview of the design and features of the 1756 HSC B module For other module series firmware and or software information see Appendix C Topic Pag Encoder and Sensor Compatibility 13 1756 HSC B Module Features 13 The 1756 HSC module counts pulses by using a Counter or Frequency operational mode The counts are presented as either accumulated count or frequency depending on the mode that is configured for the module You can choose from either one of three Counter modes or one of three Frequency modes when configuring the module The operational mode selected determines how the pulse count is stored and the behavior of the outputs You can manipulate the storage of the count values detailed in Chapter 2 The 1756 HSC module evaluates these count values against user configured presets and or values thus the response time for activating outputs is performed at a faster rate than evaluating in the controller Configuration tags which are automatically installed with the 1756 HSC module during the initial download in RSLogix 5000 programming software determine whether the module interprets pulses as accumulated count values can be 1 16 million frequency positive or negative depending on the direction of the rotation Pulse count values can be calculated by using different types of Counter and Frequency modes The simple counter uses only input A
46. arlier than version 15 Original functionality includes the Counter Encoder x1 Encoder x4 and Frequency modes RSLogix 5000 software earlier than version 15 does not have a user interface for data entry A thin profile requires that you manually enter operational modes and output settings in the Controller Tags window IMPORTANT Firmware revision 2 x requires that both profiles thin full for software versions 15 17 not have electronic keying set to Exact Match for compatibility with the 1 x firmware revision You must upgrade to version 18 or later if Exact Match is required for electronic keying Rockwell Automation Publication 1756 UM007C EN P November 2011 1756 HSC Module History 103 Follow these steps to manually enter tag data 1 On the Controller Organizer right click Controller Tags and choose Monitor Tags B 46 Controller Controller L63 New Controller Controller New Tag Ctrl W Power Up m B fa MainTask Edit Tags A amp MainPr i The Controller Tags window appeats The name of your controller displays in the Scope field Scope fd L63_Cortroler Show at Tags fv Name zafe Value ForeMask f Style Data Type El Local 1 C ical Tc AB 1756 HSC C O ocal 1 C ProgT oF aultEn 0 Decimal BOOL H Locat 1 C Rol0ver toast Decimal DINT 2 Decima DINTI Decimal INTIZ Local 1 C OperationalMode out Decimal SINT 2 Local C Operati
47. ary Publication 1756 UM007C EN P November 2011 Numerics 1756 TBCH cage clamp RTB 46 1756 TBE extended housing 47 1756 TBS6H spring clamp RTB 46 A Allen Bradley 845 incremental encoder 13 47 Allen Bradley Bulletin 872 three wire DC proximity sensor 48 assigning outputs to counters 26 B Belden 8761 cable 44 C cable considerations Belden 8761 cable 44 cage clamp wiring the RTB 46 CE certification 13 certification CE CSA UL FM 13 changing module tags 104 chassis removal 53 communication format 62 HSC data 63 HSC data extended 63 compatible encoder and sensor 11 keying 75 configuration changing module tags 104 configuration data structure 87 counter 65 default 59 downloading data 79 input data structure 87 91 module 55 output 68 output data structure 87 89 connections direct connection 56 to the RTB 44 continuous Index rate frequency 32 counter assigned outputs 26 configuration 65 configuration error codes 81 illustration 19 CSA certification 13 D data structures configuration structure 87 input structure 87 91 output structure 87 89 default configuration 59 diagnostic solutions 84 disabled filter 68 keying 77 downloading configuration data 79 E electronic keying 15 73 enabled filter 68 encoder compatibility 11 incremental encoder 13 illustration 20 21 mode 20 encoder X1 mode 18 encoder X4 21 mode 18 21 error codes 81 fault HSC 14 reporting 82 type 84 filter A m
48. atalog Number 1756 IB16D ra Pa sl Major Revision 3 Minor Revision 1 F Open Modde eves cea rh Communication is prevented Physical Module Vendor Allen Bradley Product Type Digital Input Module Catalog Number 1756 IB16D Major Revision 3 Minor Revision 2 Changing electronic keying selections online may cause the 1 0 IMPORTANT Communication connection to the module to be disrupted and may result in a loss of data Compatible Keying Compatible Keying indicates that the module determines whether to accept or reject communication Different module families communication adapters and module types implement the compatibility check differently based on the family capabilities and on prior knowledge of compatible products Rockwell Automation Publication 1756 UM007C EN P November 2011 76 Configure the 1756 HSC Module Compatible Keying is the default setting Compatible Keying allows the physical module to accept the key of the module configured in the software provided that the configured module is one the physical module is capable of emulating The exact level of emulation required is product and revision specific With Compatible Keying you can replace a module of a certain Major Revision with one of the same catalog number and the same or later that is higher Major Revision In some cases the selection makes it possible to use a replacement that is a different catalog number than t
49. ate 150 Q impedance and low capacitance per unit length Rockwell Automation Publication 1756 UMO007C EN P November 2011 accumulated value ACC actuator address algorithm American wite gauge AWG analog circuit asynchronous AWG backplane balanced circuit bandwidth baseband link bidirectional I O module broadband link Glossary The number of elapsed time intervals or counted events 1 A device that converts an electrical signal into mechanical motion 2 Ina general sense any machine process load device for example transducer of a controller output circuit See output device page 120 1 A character string that uniquely identifies a memory location 2 A character string that uniquely identifies the physical location of an input or output circuit A set of procedures used for solving a problem in a finite number of steps A standard system used for designating the size of electrical conductors Gauge numbers have an inverse relationship to size larger numbers have a smaller cross sectional area However a single strand conductor has a larger cross sectional area than a multi strand conductor of the same gauge so that they have the same current carrying specification 1 A circuit in which the signal can vary continuously between specified limits 2 A circuit that provides a continuous function 3 Contrasted with digital circuit page 117 1 Lacking a regular time relationship not
50. ation A NES LJ qj is 4 N l 5 Y o o o e o o o o o o o o 3 0 o o o o o 6 o o o o o o o o o o o o o o o o Ne o Item Description 1 Backplane connector The backplane interface for the ControlLogix system connects the module to the backplane 2 Top and bottom guides Guides provide assistance in seating the removable terminal block RTB onto the module 3 Connector pins Input output power and grounding connections are made to the module through these pins with the use of an RTB 4 Status indicators Indicators display the status of communication module health and presence of input output devices Use these indicators to help in troubleshooting 5 Locking tab The locking tab anchors the RTB on the module maintaining wiring connections 6 Slots for keying The slots let you mechanically key the RTB to prevent inadvertently making the wrong wire connections to your module 7 Removable terminal block The RTB lets you connect and house the wiring There are several types of RTBs See page 46 for details on RTB types Rockwell Automation Publication 1756 UMO007C EN P November 2011 16 1756 HSC Module Features Notes Rockwell Automation Publication 1756 UMO007C EN P November 2011 Chapter 2
51. ation fault in Run mode valid entries are 0x0 0x1 and 0x2 1620081 1620083 1620082 1620084 BADPROG Occurs if you configure the module for something other than On Off or Continue when transitioning from Run mode to Program mode valid entries are 0x0 0x1 and 0x2 1620091 1620093 1620092 1620094 BADWINDOW Occurs if the On Off values are greater than the Oxfffffe value RSLogix 5000 Di agnostics In addition to the Status Indicator display on the module RSLogix 5000 software will alert you to fault conditions See page 85 for details on status indicators Fault conditions in RSLogix 5000 software are reported in one of four ways Warning signal on the main window next to the module This occurs when the connection to the module is broken e Fault message in a window s status line Notification in the Tag Editor General module faults also are reported in the Tag Editor Diagnostic faults are reported only in the Tag Editor Status on the Module Info tab Publication 1756 UM007C EN P November 2011 Module Diagnostics 83 The following windows display fault notification in RSLogix 5000 software Warning Signal on Main Window yhsc 1756 L63 esch Loje Communtcaticns Tools Window Hep px me e 4 a ema R alal F fe a BE O Teeny g Elele al OB WanProgam E Urecheduled Programs j s meen crows Gil I O Configuration H 6 1756 Ba
52. ault Make sure the C Output x FaultMode is not set to 1 which means Outputs Turn Off during a fault The module outputs remain On when the owner controller is in Program mode Make sure C Output x FaultMode is not set to 1 which means Outputs Turn Off during a fault An output must be forced On Set the O OutputControl x bit to 2 An output must be forced Off Publication 1756 UMO007C EN P November 2011 Set the O OutputControl x bit to 1 Appendix A Introduction Status Indicators 1756 HSC Status Indicators Each 1756 HSC module has indicators that show input and output status Status indicators are located on the front of the module The 1756 HSC module uses the following status indicators COUNTER The table describes what the status indicators represent and corrective measures Status Indicator Display Means Action Taken Input Off Input turned off If you need to use A B Z Input not currently used the input check Wire disconnected wiring connections On Yellow Input turned on None Output Off Output turned off If you need to use 0 1 2 3 Output not currently the output check used input wiring connections and your ladder program On Yellow Output turned on None Rockwell Automation Publication 1756 UM007C EN P November 2011 86 1756 HSC Status Indicators Notes Rockwell Automation Publication 1756 UMO007C EN P November 2011
53. c Page Frequency Mode 30 Period Rate and Continuous Rate Modes 32 Output Operation 35 Period Rate Continuous Rate Output Examples 36 Each of the three Frequency modes use incoming pulse counts in a user defined interval to determine frequency values The Stored Value tag contains the calculated frequency and is always positive You can select one of three Frequency operational modes based on the frequency of the incoming signal Frequency mode is best suited for calculating higher frequencies because you define the sample period used to count incoming pulses At higher frequencies there are a greater number of pulses to be sampled that results in the ability to calculate frequency at a higher resolution The Stored Value tag is updated at the end of the selected sample period Period Rate and Continuous Rate modes use an internal 4 MHz clock and a user defined number of incoming pulses configured by the Scaler value that results in better performance at lower frequencies where more 4 MHz pulses are accumulated Higher Scaler values also help to improve the calculation of high frequency signals as longer pulse durations provide for more 4 MHz pulses to be counted Therefore the combination of the Scaler and incoming frequency determines the rate at which the frequency is updated in the Stored Value tag Rockwell Automation Publication 1756 UMO007C EN P November 2011 30 Frequency Modes The difference between the Period Rate an
54. ccurs if you set the Storage mode to a value of six or greater or if the Storage mode is set to a nonzero value in Frequency mode 1620031 1670032 BADROLL Occurs if you program a nonzero value in Period Rate Continuous Rate frequency modes or if you program a value greater than Oxfffffe 1620041 1670042 BADPRESET Occurs if you program a nonzero value in Period Rate Continuous Rate frequency modes or if you program a value equal to or greater than the rollover value Publication 1756 UM007C EN P November 2011 82 Module Diagnostics Counter Configuration Errors Error Code 1620051 1670052 Output Configuration Errors Error Code 1620061 1620063 1620062 1620064 Definition BADSCALE Occurs if you take any of the following actions in the Counter Frequency modes Program a value greater than 2000 in Frequency mode Program a value that is not an integer multiple of 10 in Frequency mode Program a value whose scaler is not equal to 0 Occurs in Period Rate Continuous Rate modes if the scaler is not 0 1 2 4 8 16 32 64 128 256 Definition BADTIE Occurs if you attempt to tie an output to a nonexistent counter or if you attempt to tie the output to two counters valid entries are 0x0 Ox1 or 0x2 1620071 1620073 1620072 1620074 BADFAULT Occurs if you configure the module for something other than On Off or Continue or if the 1756 HSC module receives a communic
55. ckplane 1756 4 fi 5 1756 H5C hsc m fa 8 1756 L63 myhsc A warning icon iy displays in the I O Configuration tree when a communication fault occurs Fault Message in Status Line Module Properties Local 5 1756 HSC 1 1 General Connection Module infa Counter Configuration Output Configuration Backplane m Identification Status Vendor Allen Bradley Major Fault None Product Type Specialty 1 0 Minor Fault None Product Code 1756 HSC Internal State Program mode Integer Config Revision 1 6 Serial Number 80206D0C Configured Yes Product Name 1756 HSC 4 Ver 1 6 Owned Yes Module Identity r Coordinated System Time CST Timer Hardware Ok Timer Sync ed No Refresh Reset Module Status Waiting Cancel Apply Help On the Module Info tab in the Status section the Major and Minor Faults are listed along with the Internal State of the module Notification in Tag Editor Scpa fA nyse v Show ShowAll gt 65535 Decimal CEN eaa H Decimal Lod GS 0 ss E Decimal Local S V 0 Decimal t Decimal SINT 0 Decimal SINT i d RR The Value field shows 65535 to indicate that the module connection has been broken Publication 1756 UMO007C EN P November 2011 84 Module Diagnostics Fault Type Determination When you are monitoring a module s configuration properties in RSLogi
56. ctively are included in the Configuration tags at the initial system configuration The 1756 HSC B module also has both tags in the Output tag settings to allow the values to be changed in real time when the 1756 HSC Data extended Comm Format is selected This feature provides the flexibility of changing counter settings on the fly without having to re configure all system tags Period rate Continuous Rate frequencies Both Frequency modes are available with the 1756 HSC B module when using the Data extended Comm Format Period Rate mode counts internal 4 MHz clock pulses over a used defined time frame to determine frequency Continuous Rate mode is similar to Period Rate mode except dynamic outputs can be turned On Off at pre determined pulse intervals Module specific tags Tags are automatically created when you add a 1756 HSC module to your Logix5000 project The 1756 HSC module has very descriptive tags for using pulse and frequency values such as Present Value Stored Value and Totalizer Rockwell Automation Publication 1756 UMO007C EN P November 2011 14 1756 HSC Module Features Additional 1 0 Module Features The following items are additional features for ControlLogix I O modules including the 1756 HSC module Feature Configuration software Description RSLogix 5000 software has a custom interface to configure your module All module features can be enabled and disabled through the software
57. cular application These examples include 5V differential line driver single ended driver open collector circuit electromechanical limit switch Circuit Overview To make sure your signal source and the 1756 HSC module are compatible you need to understand the electrical characteristics of your output driver and its interaction with the 1756 HSC input circuit As shown in the illustration the most basic circuit consists of R1 R2 the photodiode and associated circuitry around half of the opto isolator The resistors provide first order current limiting to the photodiodes of the dual high speed opto isolator When a signal is applied to the 12 24V inputs pins 13 and 17 in the graphic the total limiting resistance is R1 R2 1150 Q Assuming a 2V drop across the photodiode and R5 and R6 you would have 8 21 mA demanded from the driving circuit as the applied voltage ranged from 12 to 24V 5V Differential Input Terminals Line Driver rc 141 R1 R2 o ce I Z 2 a oi a i LY LO ET C1 D3 gt 18 R5 R6 E em i gt e Vu a 402 402 ug 412 to 24V ME 7 i 130 R3 R4 e High R Ou 1K 150 YD Drive 220 15 1 D5 02 Input ewww OA e Low C2 D6 Drive a x S o5 ews TU 40 2 40 2 zi eu 12 to 24V gg Single
58. d the 1756 HSC module performs as configured either setting all outputs to reset On or Off or continuous operations Module Communication with its Owner controller Logix Controller 1756 HSC Module 4 Tags User Program 5 44779 Path No Description 1 Controller transfers configuration data and commands to the module 2 External devices generate input signals that are transmitted to the module 3 Module converts signals stores values and controls output without being updated by the controller 4 Controller stores the counts or frequency values in descriptive and easily understood tags 5 Ladder logic program can store and move data before the inputs trigger new data A module s communication or multicasting behavior varies depending upon whether it operates in the local chassis or in a remote chassis The following sections detail the differences in data transfers between these setups Direct Connections A direct connection is a real time data transfer link between the controller and the device that occupies the slot that the configuration data references When module configuration data is downloaded to an ownet controller the controller attempts to establish a direct connection to each of the modules referenced by the data Rockwell Automation Publication 1756 UMO007C EN P November 2011 Configure the 1756 HSC Module 57 One of the following events occurs I
59. d Continuous Rate modes is the outputs are dynamic On Off throughout the sample period for Continuous Rate while Period Rate outputs are updated only at the end of the sample period Your desired output behavior should determine whether one uses Period Rate or Continuous Rate modes See page 35 for details Where Frequency Values are Stored in Tags Mode Description Frequency Present Value Tag Stored Value Tag Totalizer Tag No of input pulses occurring in Sample Period Period Rate Frequency Frequency Accumulated pulse count No of 4 MHz pulses occurring in Sample Period Continuous Rate Frequency Frequency Mode In Frequency mode the module counts incoming pulses on channel A for a user specified time interval that is configured in the Scaler tag At the end of the interval the module returns a value representing the sampled number of pulses in the Present Value tag a value indicating the incoming frequency in the Stored Value tag and a value indicating the total number of pulses that have occurred in the Totalizer tag When the count and frequency are updated at the end of the sample period any associated outputs ate checked against their associated presets The output On Off values are related to the value in the Stored Value tag As you increase the Scaler see Sample Period for Frequency Mode the accuracy of the frequency and the time between samples will increase In general if you are measu
60. d on a set of attributes unique to each product revision When a Logix5000 controller begins communicating with a module this set of keying attributes is considered Keying Attributes Attribute Description Vendor The manufacturer of the module for example Rockwell Automation Allen Bradley Product Type The general type of the module for example communication adapter AC drive or digital 1 0 Product Code The specific type of module generally represented by its catalog number for example 1756 HSC Major Revision A number that represents the functional capabilities and data exchange formats of the module Typically although not always a later that is higher Major Revision supports at least all of the data formats supported by an earlier that is lower Major Revision of the same catalog number and possibly additional ones Minor Revision A number that indicates the module s specific firmware revision Minor Revisions typically do not impact data compatibility but may indicate performance or behavior improvement Rockwell Automation Publication 1756 UMO007C EN P November 2011 74 Configure the 1756 HSC Module You can find revision information on the General tab of a module s Properties dialog box General Tab Revision 7 1 E Electronic Keying Compatible Keying Compatible Kevina Disable Keying Exact Match IMPORTANT Changing electronic keying selections online may cause t
61. e In this manual we assume that you know how to use these products If you do not refer to the related user publications for each product before you attempt to use the 1756 HSC module Preface Additional Resources These documents provide information related to the ControlLogix High speed Counter Module Resource 1756 ControlLogix 1 0 Technical Data publication 1756 TD002 Description Provides specifications for the ControlLogix controllers O modules specialty modules chassis power supplies and accessories ControlLogix System User Manual publication 1756 UM001 Detailed description of how to use your ControlLogix operating system ControlLogix Digital 1 0 Modules User Manual publication 756 UM058 Detailed description of how to install and use ControlLogix digital 1 0 Modules ControlLogix Analog 1 0 Modules User Manual publication 1756 UM009 Detailed description of how to install and use ControlLogix analog 1 0 Modules You can view or download publications at http www rockwellautomation com literature To order paper copies of technical documentation contact your local Allen Bradley distributor or Rockwell Automation sales office Publication 1756 UM007C EN P November 2011 Chapter 1 Introduction What is a High speed Counter Module 1756 HSC Module Features The High speed Counter Module catalog number 1756 HSC performs high speed counting for industrial
62. e a 5V differential line driver in your encoder when you have a long cable run and ot high input frequency or narrow input pulses input duty cycle 50 The top circuit page 106 shows a typical 5V differential line driver The encoder output is connected to the field wiring arm terminal 16 and is sourcing current and the encoder output to terminal 18 is sinking current IMPORTANT Neither output of the differential line driver can be connected to ground Damage could occur to your driving device To be sure that your device drives the 1756 HSC you must know the electrical characteristics of the output driver component used in your signal source device The output voltage differential Vac Voh Voy is critical because this is the drive voltage across the 1756 HSC input terminals 16 and 18 and the photodiode current is a function of Vdiff Vdrop The manufacturer of your shaft encoder or other pulse producing device can provide information on the specific output device used Any signal source that uses a standard TTL output device driver rated biel asia to source 400 pA or less in the high logic state is not compatible with the 1756 HSC module Many popular differential line drivers such as the 75114 75ALS192 and the DM8830 have similar characteristics and can source or sink up to 40 mA In general the output voltage Vop is higher both as the supply voltage and the ambient temperature increase For example vendor data fo
63. e filter disabled assuming a 50 duty cycle module reads at 1 MHz in Counter mode module reads at 250 kHz in Encoder x1 or Encoder x4 mode module reads at 500 kHz in Frequency mode With the filter enabled assuming a 50 duty cycle module counts all pulses at a frequency below 70 Hz module does not count any pulses at a frequency above 150 Hz frequencies between 71 148 Hz the operation is unpredictable and vaties with duty cycles Set Up Output Configuration The Output Configuration tab on the Module Properties dialog box is available for either the HSC Data or HSC Data extended Comm Format with the 1756 HSC B module The tab lets you set up and maintain the four on boatd outputs which compare user defined values to the Present Value tag to turn outputs On or Off Follow these steps to set up the output operation 1 On the Modules Properties dialog box click the Output Configuration tab Rockwell Automation Publication 1756 UM007C EN P November 2011 Configure the 1756 HSC Module 69 The Output Configuration dialog box appeats lil Module Properties Local 5 1756 HSC 1 1 General Connection Module Info Counter Configuration Backplane Output o Wels First Value Output Turns ON First Value Output Tums OFF Tie to Counter Not ied to Counter v Second Value Output Tums ON Second Value Output Tums OFF Output State in Fault Mode Outputs Tum OFF Output State in
64. e photodiode 12 to 24V Single ended Driver Some European made encoders use a circuit similar to the lower circuit in the figure below The current capable of being sourced is limited only by the 22 Q resistor in the driver output circuit R Rockwell Automation Publication 1756 UMO007C EN P November 2011 110 Application Considerations If a 24V supply is used and this driver supplies 15 mA the output voltage still would be about 23V 15 mA x 22 Q 0 33V and Vce 7V 5V Differential Input Terminals Line Driver pc 141 R1 R2 S i Oe icu 1 l D1 nae 2 TX 2 D2 01 O3 1 E ot C1 D3 118 R5 R6 pe a e e Y t sni 40 2 40 2 Z5 12 to 24V NE f 9 R3 R4 E o tote Ls High R 1K 150 y D4 7 Drive K 220 M5 D5 02 Input ewww O OD Low K C2 D6 Drive Hi Me D T Ci 40 2 40 2 cl eee 12 to 24V T Single ended Driver If the input is applied to the 12 24V terminal the current to the photodiode is limited by the series resistance of R3 and R4 about 1 15 kQ A protection circuit consisting of Q2 R7 and R8 is included If the current through the photodiode exceeds about 8 mA the voltage across R7 and R8 is sufficient to turn Q2 on shunting any additional current away from the photodiode The voltage drop across Q2 is
65. e tag information applies for the four outputs 0 3 on the 1756 HSC module Definition Displays module connection status 0 Module is connected 65535 Module is not connected PresentValue x DINT Decimal Displays the current count in the Counter and Encoder modes Displays counts per sample in Frequency Period Rate or Continuous Rate modes Values range from 0 16 777 214 StoredValue x DINT Decimal Displays the Stored Count value in the Counter and Encoder modes Displays the current frequency in Hz in Frequency Period Rate and Continuous Rate modes Values range from 0 16 777 214 Totalizer x DINT Decimal Displays the current frequency in Hz in Counter and Encoder modes Displays the total accumulated counts in Frequency Period Rate and Continuous Rate modes Values range from 0 16 777 214 WasReset x BOOL Decimal Displays whether the counter was reset 0 Counter was not reset Counter was reset WasPreset x BOOL Decimal Displays whether the Preset value for the counter was loaded 0 Preset value was not loaded 1 Preset value was loaded NewDataFlag x BOOL Decimal Displays whether the module received new data on the last scan 0 No new data was received 1 New data was received ZState x BOOL Decimal Displays the Z state 0 Gate is low Gate is high OutputState y BOOL
66. e with a module Other attributes such as data size and format are considered and must be acceptable before I O communication is established With Disabled Keying I O communication may occur with a module other than the type specified in the I O Configuration tree with unpredictable results We generally do not recommend using Disabled Keying Rockwell Automation Publication 1756 UMO007C EN P November 2011 78 Configure the 1756 HSC Module Be extremely cautious when using Disabled Keying if used incorrectly this option can lead to personal injury or death property damage or economic loss If you use Disabled Keying you must take full responsibility for understanding whether the module being used can fulfill the functional requirements of the application EXAMPLE In the following scenario Disable Keying prevents 1 0 communication The module configuration is for a 1756 IA16 digital input module The physical module is a 1756 IF16 analog input module In this case communication is prevented because the analog module rejects the data formats that the digital module configuration requests Module Configuration Vendor Allen Bradley Product Type Digital Input Module Catalog Number 1756 IA16 Major Revision 3 Minor Revision 1 FF Open Mods Prats 17584416 16 Point 79V 132V AC Input Allen Bradley Local Distal Input Module sep Electronic Keying Disable Keying Commu
67. equal to about 2V Vphotodiode Vbe 2V The current demanded by the 1756 HSC input circuit would be about 18 mA 23V 2V 1 18 kQ 17 mA which is well within the capability of this driver Open Collector Open collector circuits the upper circuit on the following circuit require close attention so that the input voltage is sufficient to produce the necessary source current since it is limited not only by the 1756 HSC input resistors but also the open collector pull up Rockwell Automation Publication 1756 UMO007C EN P November 2011 Application Considerations 111 Choosing input terminals provides some options as shown in the table If we assume a 2 0V drop across D1 Q1 we can use the following equations to calculate the available current Supply Voltage 7 V drop Available current Pull up R1 if used R2 Example Supply Input Terminal Total Impedance Available Current Voltage 1 12 12 to 24V 3 15 KQ 3 1 mA insufficient 2 12 5V 2 15 kQ 4 6 mA minimal 3 24 12 to 24V 3 15 KQ 6 9 mA optimal 4 24 5V 2 15 kQ 10 2 mA acceptable You must increase the supply voltage above 12V to make sure there is sufficient input current to overcome the additional 2 kQ pull up impedance Keep in mind that you want the available current to be at least 4 mA Input Terminals 12V Ope
68. er 2 for details Scaler Defaults to zero 0 For Frequency mode the Scaler determines the amount of time in milliseconds the 1756 HSC module counts incoming pulses Range 0 2000 ms in 10 ms increments A value of zero 0 is equivalent to 1000 ms For Period Rate Continuous Rate modes pulses will be used to count internal 4 MHz pulses Allowable values are 0 1 2 4 8 16 32 64 128 256 A value of zero is equivalent to 1 Valid with the HSC Data extended Comm Format only Rockwell Automation Publication 1756 UMO007C EN P November 2011 68 Configure the 1756 HSC Module Field Description Use Filter A Select a filter for either Channel 0 Use Filter B and or Channel 1 Use Filter Z See Filter Selections for how the filters affect the signal rate Invert Z Value Box becomes active when a Storage mode is selected other than No Store Mode When active Input Z reverses reading the rising or falling edge of the pulse depending on previous usage If the pulse was read on the rising edge the module inverts the signal and now reads the falling edge of the pulse 3 Click OK Filter Selections High speed inputs can be sensitive to electromagnetic noise You can manually set Channel 0 inputs and or Channel 1 inputs to filter out noise or debounce Debounce is created when a mechanical device changes state On Off All 1756 HSC module inputs have the following characteristics With th
69. es including revised output tags and electrical schematics The table outlines the profiles for the 1756 HSC B module based on your firmware and software configurations If you are using the original 1756 HSC A module with either firmware revision 1 x or 2 x see Appendix C for details If you have Using And your desired Then use the Logix5000 profile Comment module firmware functionality is revision Series B ug Original Versions earlier than 15 gt Thin profile tags only Exact Match Keying not supported Version 15 17 gt Full profile support Version 18 and later gt Select Major Revision 3 and HSC Data Comm Format 3x Rollover and Preset HSC ACD file in Output Tags Period Continuous Rate HSC Data extended Comm Format Totalizer Versions earlier than 18 gt Use generic profile Version 18 and later gt Select Major Revision 3 and n Original means the features and module behavior in the initial release of the 1756 HSC A module firmware revision 1 x functions and tags See Appendix C for details 2 File is located at http samplecode rockwellautomation com Who Should Use This Manual Publication 1756 UM007C EN P November 2011 You must be able to program and operate an Allen Bradley ControlLogix controller and various Allen Bradley encoders and sensors to efficiently use your 1756 HSC modul
70. es slightly with respect to getting data to the owner The RPI not only defines when the module produces data within its own chassis but also determines how often the owner controller receives it over the network When an RPI value is specified for a module in a remote chassis in addition to instructing the module to produce data within its own chassis the RPI also reserves a spot in the stream of data flowing across the network Rockwell Automation Publication 1756 UMO007C EN P November 2011 58 Configure the 1756 HSC Module Local Chassis The timing of this reserved spot may not coincide with the exact value of the RPI but the control system guarantees that the owner controller receives data at least as often as the specified RPI As shown in the illustration data from the remote chassis is sent to the ControlNet bridge module at a rate no slower than the configured RPI Data from Remote Chassis Sent to ControlNet Bridge Module Remote Chassis 8 8 8 V usce E 0100 NED o ooo ooo cud i ooo o ooo or Hero c Data sent at the RPI rates ControlNet Network 40947
71. escription of the formats and the associated tags that are created during the download IMPORTANT Make sure you select the correct communication format for your application because you cannot change the selection after the program is downloaded with the controller You will have to reconfigure the module to change the communication format 8 In the Revision box make sure to match the actual revision for your module This setting works in conjunction with the electronic keying to determine the connection 9 Choose an electronic keying method See page 73 for details Controllers that have RSLogix 5000 software l version 17 or earlier should use Compatible Keying for the 1756 HSC B module You must upgrade to version 18 or later if Exact Match is required otherwise there will be no connection with the controller 10 Do one of the following to either accept default configuration settings or edit configuration data a To accept the default configuration settings make sure Open Module Properties is not checked and then click OK b To set up a custom configuration make sure Open Module Properties is checked and then click OK The New Module Properties dialog box appears with tabs for entry of additional configuration settings Rockwell Automation Publication 1756 UM007C EN P November 2011 62 Configure the 1756 HSC Module Communication Format Options Multiple controllers can receive data being produced by
72. esignates an operational mode 0 Counter mode 1 Encoder x1 mode 2 Encoder x4 mode 3 Counter not used 4 Frequency mode 5 Period Rate mode 6 Continuous Rate mode No C StorageMode x SINT Decimal Designates a storage mode 0 No store mode 1 Store and continue mode 2 Store wait and resume mode 3 Store and reset wait and start mode 4 Store and reset and start mode Yes C ZInvert x BOOL Decimal Designates whether the Z input is inverted 0 Do not invert Z input 1 Invert Z input Yes C FilterA x BOOL Decimal Designates whether channel A uses a filter 0 Do not use filter 1 Use 70 Hz Yes C FilterB x BOOL Decimal Designates whether channel B uses a filter 0 Do not use filter 1 Use 70 Hz Yes C FilterZ x BOOL Decimal Designates whether channel Z uses a filter 0 Do not use filter 1 Use 70 Hz Yes This setting may be overridden by the output tag setting See page 22and page 23 in Chapter 2 for details Rockwell Automation Publication 1756 UM007C EN P November 2011 1756 HSC Module Configuration Tags 1756 HSC Data Structures 89 Name Data Style Definition Change Type During Operation C Output yJ ONValue DINT Decimal Designates the value at which an output turns On Yes Values range from 0 16 777 214 e C Output y OFFValue DINT Decimal Designates
73. esult in a successfully installation If you use an open collector or other single ended driver at distances of 250 ft and frequencies of 250 kHz your chances of success are low Refer to the table for suggested desirable driver types Desirable Adequate Undesirable 5V Line Drivers such as Balanced Single Ended any Standard TTL or AC or ACT family part LSTTL Gates DM8830 DM88C30 d 75ALS192 or equivalent Discrete balanced circuit or Open Collector suitable for frequencies of lt 50 kHz Totem pole Output Devices Standard TTL totem pole output devices such as 7404 and 74LS04 are usually rated to source 400 uA at 2 4V in the high logic state This is not enough current to turn on a 1756 HSC input circuit If your present encoder has this kind of electrical output rating you cannot use it with the 1756 HSC module Most encoder manufacturers including Allen Bradley offer several output options for a given encoder model When available choose the high current 5V differential line driver Rockwell Automation Publication 1756 UMO007C EN P November 2011 114 Application Considerations Cable Impedance Generally you want the cable impedance to match the source and or load as closely as possible Using 150 Q Belden 9182 or equivalent cable more closely matches the impedance of both encoder and module input circuits than 78 Q cable such as Belden 9463 A closer impedance match minimizes reflections at high fre
74. f the data is appropriate to the module found in the slot a connection is made and operation begins If the configuration data is not appropriate the data is rejected and an error message displays in the software In this case the configuration data can be inappropriate for any of a number of reasons For example a module s configuration data may be appropriate except for a mismatch in electronic keying that prevents normal operation The controller maintains and monitors its connection with a module Any break in the connection such as removal of the module from the chassis while under power causes the controller to set faults in the data area associated with the module The RSLogix 5000 programming softwate may monitor this data area to announce the module s failures Local Chassis Operation The time frame that a module produces its data depends on the options chosen during configuration and where in the control system the module physically resides such as locally or remotely The requested packet interval RPI instructs the module to send its channel and status data to the local chassis backplane at specific time intervals The RPI value is set during the initial module configuration by using the RSLogix 5000 programming software This value can be adjusted when the controller is in Program mode See page 64 for RPI settings Remote Chassis Operation If a module resides in a networked chassis the role of the RPI chang
75. for the 1756 HSC module Signal Type Source Device Maximum Signal HSC Channels Rate Supporting Signal Pulse Digital Rulers 1 MHz with a pulse Channel A PHOTOSWITCH width gt 500 ns Quadrature Quadrature Encoder 250 kHz Channels A and B Frequency Flowmeters 500 kHz with a pulse Channel A or Z Input Frequency width gt 1us Period Rate Continuous Rate IMPORTANT Higher signal rates typically require extra caution in the installation and compatibility of the pulse generating device Be sure to read Appendix D Application Considerations to verify your device s compatibility Rockwell Automation Publication 1756 UM007C EN P November 2011 38 Frequency Modes Notes Rockwell Automation Publication 1756 UMO007C EN P November 2011 Introduction ATTENTION A Chapter 4 Install and Wire the ControlLogix High speed Counter Module This chapter describes how to install and maintain the 1756 HSC module If your module is already installed proceed to page 55 Topic Pag nsalthe 1756 HSCModule w Key the Removable Terminal Block 42 Connect the Wires 44 Wire Terminations 47 Assemble the Removable Terminal Block and Housing 50 Install the Removable Terminal Block 51 Remove the Removable Terminal Block 52 Remove the Module from the Chassis 53 Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial env
76. g The Period Rate output On Off presets are checked only once per sample period Therefore outputs are only checked against their On Off values and updated once per scaler number of incoming pulses The Continuous Rate output On Off presets are checked continuously during the sample petiod Therefore outputs are dynamically checked against their On Off values and can be updated multiple times per scaler number of incoming pulses For example assume that the module was programmed to turn On an output with a count value 20 000 and Off at a count value 80 001 Also assume that the incoming frequency resulted in the 4 MHz clock count in the Present Value tag 40 000 with a scaler of 1 In Period Rate mode the output would always be On because at the end of every sample period the Stored Value Present Value and Totalizer tags would be updated and the outputs compared against their On Off values The number of 4 MHz counts in the Present Value tag would be 40 000 which is between 20 000 and 80 001 therefore the output would be On In Continuous Rate mode the output state would change from Off to On to Off during the incoming external pulse In this mode the output presets are checked continuously against the 4 MHz count on the module Initially the 4 MHz count is zero and begins incrementing on the leading edge of the incoming pulse The count continues to increment whereupon it reaches 20 000 counts and the output turns
77. g characteristics of the system The communication mechanism from the controller to another module in the control system The backplane used by the 1756 chassis A unit such as a programmable controller or relay panel that controls machine or process elements An open control network that uses the producer consumer model to combine the functionality of an I O network and a peer to peer network while providing high speed performance for both functions Timer value which is kept synchronized for all modules within a single ControlBus chassis The CST is a 64 bit number with us resolution Publication 1756 UM007C EN P November 2011 data data table database differential digital circuit direct connection direct I O module disable keying download duration electronic keying encoder Glossary 117 1 A general term for any type of information 2 In a more restricted sense data refers to the end use information in the patticular context thereby excluding the protocol information used to get the end use information The part of processor memory that contains I O values and files where data is monitored manipulated and changed for control purposes The entire body of data that has to do with one or more related subjects Typically it consists of a collection of data files 1 Pertaining to a method of signal transmission through two wires The transmission always has opposite states The signal da
78. he I O communication connection to the module to be disrupted and may result in a loss of data Exact Match Exact Match keying requires all keying attributes that is Vendor Product Type Product Code catalog number Major Revision and Minor Revision of the physical module and the module created in the software to match precisely in order to establish communication If any attribute does not match precisely I O communication is not permitted with the module or with modules connected through it as in the case of a communication module Use Exact Match keying when you need the system to verify that the module revisions are exactly as specified in the project such as for use in highly regulated industries Rockwell Automation Publication 1756 UMO007C EN P November 2011 Configure the 1756 HSC Module 75 Exact Match keying is also necessary to enable Automatic Firmware Update for the module via the Firmware Supervisor feature from a Logix5000 controller EXAMPLE In the following scenario Exact Match keying prevents 1 0 communication The module configuration is for a 1756 IB16D module with module revision 3 1 The physical module is a 1756 IB16D module with module revision 3 2 In this case communication is prevented because the Minor Revision of the module does not match precisely Module Configuration Vendor Allen Bradley Product Type Digital Input Module Full Diagnostics Input Data C
79. he RSLogix 5000 software program click the status icon Offline D E RUN No Forces Go Online No Edits Upload 2 Choose Download Rockwell Automation Publication 1756 UM007C EN P November 2011 80 Configure the 1756 HSC Module The Download dialog box appeats Download to the controller Name User doc Type 1756 L1 4 1756 M0 0 LOGIX5550 Using this communications configuration Driver AB_DF1 1 Path Cancel 3 Click Download Rockwell Automation Publication 1756 UM007C EN P November 2011 Chapter b Module Diagnostics Introduction This chapter describes error codes and fault conditions to help you troubleshoot the 1756 HSC module Topic Page 1756 HSC Error Codes 81 RSLogix 5000 Diagnostics 82 Troubleshoot the 1756 HSC Module 84 1756 HSC Error Codes Errors ate displayed on the Connection tab of the Module Properties dialog box in RSLogix 5000 software and in the EXERR field of the message vatiable when you reconfigure the module The final number of each code represents the channel number that is reporting the error 1 channel 0 and 2 channel 1 For example code 16 0011 means that a BADCOUNT has occurred on channel 0 The following table lists possible errors on your 1756 HSC module Counter Configuration Errors Error Code Definition 1620011 1670012 BADCOUNT Occurs if you set the operational mode to a value of seven or greater 1620021 1620022 BADSTORE O
80. he original For example you can replace a 1756 CNBR module with a 1756 CN2R module Release notes for individual modules indicate the specific compatibility details When a module is created the module developers consider the module s development history to implement capabilities that emulate those of the previous module However the developers cannot know future developments Because of this when a system is configured we recommend that you configure your module by using the earliest that is lowest revision of the physical module that you believe will be used in the system By doing this you can avoid the case of a physical module rejecting the keying request because it is an earlier revision than the one configured in the software EXAMPLE In the following scenario Compatible Keying prevents 1 0 communication The module configuration is for a 1756 IB16D module with module revision 3 3 The physical module is a 1756 IB16D module with module revision 3 2 In this case communication is prevented because the minor revision of the module is lower than expected and may not be compatible with 3 3 Module Configuration Type 175648160 16 Point 10V 30V DC Diagnostic Input Vendor Allen Bradley we Ani Product Type Digital Input a CN Module Full Diagnostics Input Data zl Catalog Number 1756 IB16D UN NES taken Canosa Keyes Major Revision 3 Minor Revision 3 F Open Modde Popeties EXE Communicat
81. ied over the array specified by the communication format selection 7 Enter a module slot number that is specific to your chassis configuration Connection Parameters In the right side column of the New Module dialog box there are entry fields for the Connection Parameters You must set connection parameters for input output and configuration for the owner controller to exchange information with the 1756 HSC module The Assembly Instance is a number that identifies what the data looks like that is transferred between the owner controller and an I O module The Size box determines how large the connections are between the owner controller and the I O module Connections are sent in sizes matching the selected communication format data type Rockwell Automation Publication 1756 UM007C EN P November 2011 1756 HSC Module History 97 8 Enter Connection Parameters exactly as shown in the example below Connection Parameters Assembly k Instance Size Input e o 24 oso Output fist 26 25i Configuration 13 15 E 8 bit IMPORTANT The generic connection works only with the matching Assembly Instance and Size parameters listed above for the input output and configuration settings 9 Check Open Module Properties to access additional dialog boxes to enter information 10 Click OK The Module Properties dialog box appears in the Connection tab Will Module Properties Local 6 1756 MODULE 1 1
82. ignates the Rollover value Yes Values range from 0 16 777 214 e IMPORTANT This value must 0 when you are using Period Rate and Continuous Rate modes This setting may be overridden by the output tag setting See page 22 and page 23 in Chapter 2 for details Rockwell Automation Publication 1756 UM007C EN P November 2011 88 1756 HSC Data Structures 1756 HSC Module Configuration Tags C Preset x Data Type DINT Style Decimal Definition Designates the Preset value Module begins counting at this value Values range from 0 16 777 214 IMPORTANT This value cannot be gt the Rollover value This value also must 0 when you are using Period Rate and Continuous Rate modes Change During Operation Yes C Scaler x INT Decimal When using Frequency mode set this value as a multiple of 10 ms between 10 2000 If in Frequency mode and the value is 0 the module defaults to 1 second time base In Period Rate and Continuous Rate modes the scaler determines the number of half cycles of the incoming pulse train in the sample period The 4 MHz count value in the Present Value tag is incremented within the pulse train set by the Scaler tag Acceptable numbers for the scaler are 1 2 4 8 16 32 64 128 256 There is one Scaler value for each counter The default value for each Scaler is 1 a 0 is equivalent to 1 Yes C OperationalMode x SINT Decimal D
83. illustration the output turns On at the Present Value of 2000 output remains energized for 3000 additional counts output turns Off at the Present Value of 5000 Tying Outputs to Counters You can jumper any of the outputs to any of the counter inputs on the module s RTB In this way it is possible to use the outputs to reset a counter or to cascade counters If using the outputs this way make certain that the correct input terminals are used to interface with the appropriate output voltage Rockwell Automation Publication 1756 UM007C EN P November 2011 28 Counter Modes Notes Rockwell Automation Publication 1756 UMO007C EN P November 2011 Chapter J Introduction Frequency Overview Frequency Modes This chapter describes the frequency modes that are available with the 1756 HSC B module when using the HSC Data extended Comm Format The Frequency modes are Frequency number of input pulses per user defined time interval Period Rate number of sampled internal 4 MHz pulses per user defined number of incoming pulses with outputs updated at the end of the sample period with the Present Value Totalizer and Stored Value tags Continuous Rate number of sampled internal 4 MHz pulses per user defined number of incoming pulses with outputs updated throughout the sample period The Present Value Totalizer and Stored Value tags are updated only at the end of the sample period Topi
84. in Present Value tag is incremented ieee IMPORTANT Sample period times scaler must be less than 0 25 seconds or the counter will overflow without providing an overflow indication Rockwell Automation Publication 1756 UMO007C EN P November 2011 34 Frequency Modes The inverse relationship of the increase in frequency and decrease in sampled pulses is shown in the table Inverse Relationship of Frequency and Sampled Pulses Input Frequency Scaler Value No of 4 MHz Pulses at Z Input in Present Value Tag 1 1 000 000 2Hz 2 2 000 000 4 4 000 000 1 400 000 5Hz 2 800 000 4 1 600 000 1 200 000 10 Hz 2 400 000 4 800 000 1 100 000 20 Hz 2 200 000 4 400 000 1 40 000 50 Hz 2 80 000 4 160 000 1 20 000 100 Hz 2 40 000 4 80 000 1 10 000 200 Hz 2 20 000 4 40 000 1 4 000 500 Hz 2 8 000 4 16 000 Rockwell Automation Publication 1756 UMO007C EN P November 2011 Output Operation Frequency Modes 35 The Petiod Rate and Continuous Rate frequency operational modes differ in the operation of their respective on board outputs Both modes use count values that you enter in the Output Turns On and Output Turns Off fields on the Output Configuration tab These user defined presets turn an output On and Off These On and Off count values are compared to the internal 4 MHz counts returned in the Present Value ta
85. in the Totalizer tag The output On Off values are related to the value in the Present Value tag IMPORTANT Preset and rollover settings are not active in Period Rate Continuous Rate modes and must be equal to zero The difference between these two modes is in the operation of the outputs In Continuous Rate mode outputs are dynamically checked against their configured presets In Period Rate mode outputs ate checked only against their configured presets at the end of the sample period See page 36 for details Period Rate Continuous Rate Modes From Internal A Input Not Used 4 MHz Clock l l B Input Not Used 1 I l l Mu eee en A i Encoder Pulse Generator Z Input aU by caler No of it Z Input Pulses _ 9 10 11 1756 HSC Module Incoming Pulse Train at Z Input K 100ms Scaler Value 1 No of Sampled Pulses 5 x Scaler 5 Frequency in Stored Value Tag 250 ns x No of 4 MHz clock 50nsx400 000 Of If the scaler is equal to 1 the Frequency is accurate only if the duty cycle is 50 One 4 MHz pulse 250 ns Totalizer Tag 8 10 m fissi 4 MHz Internal Clock No of 4 MHz Pulses 4 9 400 000 in Present Value Tag Rockwell Automation Publication 1756 UM007C EN P November 2011 Cycles Input Pulses on Z Input Sample Period for Scaler of 2 E o MN EN mm um 1 Frequency Modes 33 As the frequency of the incoming pulse train increases
86. ing Operation Resets counter and begins counting The reset occurs only on Yes a zero to one transition 0 Do not reset 1 Reset Automation Publication 1756 UMO007C EN P November 2011 90 1756 HSC Data Structures 1756 HSC Module Output Tags Name Type Style Definition Change During Operation O LoadPreset x BOOL Decimal Loads preset count value into counter and begins counting Yes The preset occurs only on a zero to one transition 0 No action 1 Load preset O ResetNewDataFlag x BOOL Decimal Handshaking bit resets data in the l NewDataFlag x bit after Yes it has been processed The reset occurs only on a zero to one transition 0 Do not reset the flag 1 Reset the flag 0 OutputControl y SINT Decimal Overrides current state of output Yes 0 Normal operation Override value to Off 2 Override value to On O RollOver x DINT Decimal Designates the Rollover value Yes Values range from 0 16 777 214 e IMPORTANT This value must 0 when you are using Period Rate or Continuous Rate modes O Preset x DINT Decimal Designates the Preset value Module begins Yes counting at this value e Values range from 0 16 777 214 IMPORTANT This value cannot be gt the Rollover value This value also must 0 when you are using Period Rate or Continuous Rate modes 0O Output y OnValue DINT Decimal Designates the value at which an output turns On Yes Values are 0 16
87. ion is prevented Physical Module Vendor Allen Bradley Product Type Digital Input Module Catalog Number 1756 IB16D Major Revision 3 Minor Revision 2 Rockwell Automation Publication 1756 UMO007C EN P November 2011 Configure the 1756 HSC Module 77 EXAMPLE In the following scenario Compatible Keying allows 1 0 communication The module configuration is for a 1756 IB16D module with module revision 2 1 The physical module is a 1756 IB16D module with module revision 3 2 In this case communication is allowed because the major revision of the physical module is higher than expected and the module determines that it is compatible with the prior major revision Module Configuration 17561B16D 16 Point 10V 30V DC Diagnostic Input Vendor Allen Bradley nt icri Product Type Digital Input oe E Module Catalog Number 1756 IB16D Major Revision 2 Minor Revision 1 I Open Modde Popes PENES Communication is allowed Physical Module Vendor Allen Bradley Product Type Digital Input Module Catalog Number 1756 IB16D Major Revision 3 Minor Revision 2 IMPORTANT Changing electronic keying selections online may cause the 1 0 communication connection to the module to be disrupted and may result in a loss of data Disabled Keying Disabled Keying indicates the keying attributes are not considered when attempting to communicat
88. ironment in overvoltage Category II applications as defined in IEC 60664 1 at altitudes up to 2000 m 6562 ft without derating This equipment is considered Group 1 Class A industrial equipment according to IEC CISPR 11 Without appropriate precautions there may be difficulties with electromagnetic compatibility in residential and other environments due to conducted and radiated disturbances This equipment is supplied as open type equipment It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts The enclosure must have suitable flame retardant properties to prevent or minimize the spread of flame complying with a flame spread rating of 5VA V2 V1 VO or equivalent if nonmetallic The interior of the enclosure must be accessible only by the use of a tool Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications In addition to this publication see the following Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 for additional installation requirements NEMA Standard 250 and IEC 60529 as applicable for explanations of the degrees of protection provided by enclosures Rockwell Automation Publication 1756 UMO00
89. itions 3 Insert the wedge shaped tab on the RTB with the rounded edge first 4 Push the tab onto the RTB until it stops When keying your RTB and module you must begin with a wedge shaped tab in slot 6 or 7 Module Side of RTB 20851 M Rockwell Automation Publication 1756 UMO007C EN P November 2011 44 Install and Wire the ControlLogix High speed Counter Module Connect the Wires Wiring the Module Before wiring the module adhere to the following wiring guidelines If you connect or disconnect wiring while the field side power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding l ATTENTION If multiple power sources are used do not exceed the specified isolation voltage ATTENTION When using the 1756 TBCH do not wire more than two l 0 33 1 3 mm 22 16 AWG conductors on any single terminal Use only the same size wires with no intermixing of solid and stranded wire types When using the 1756 TBS6H do not wire more than 1 conductor on any single terminal o AN mm AN You can use an RTB to connect wiring to your module For most applications we recommend using Belden 8761 cable The RTB terminations can accommodate 0 33 1 3 mm 22 16 AWG shielded wire Before wiring the RTB you must connect ground wiring Follow these directions to ground
90. lace Rockwell Automation Publication 1756 UM007C EN P November 2011 52 Install and Wire the ControlLogix High speed Counter Module 3 Slide the locking tab down to lock the RTB onto the module 20854 M Remove the Removable If you need to remove the module from the chassis you must first temove the Terminal Block RTB from the module Do these steps to remove the RTB EZXIN When you connect or disconnect the Removable Terminal Block RTB with field side power applied an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding 1 Unlock the locking tab at the top of the module 2 Open the RTB door by using the bottom tab Rockwell Automation Publication 1756 UMO007C EN P November 2011 Install and Wire the ControlLogix High speed Counter Module 53 3 Hold the spot marked PULL HERE and pull the RTB off the module IMPORTANT Do x wrap your fingers around the entire door A shock hazard exists mond 20855 M Remove the Module Follow these steps to remove a module from its chassis from the Chassis WARNING When you insert or remove the module while backplane power is on an electrical arc can occur This could cause an explosion
91. le Source Local 3 C Output 0 Dest Local 3 0 Output 0 Lenath 4 6 Repeat step 4 and step 5 to add two more CPS commands to the same rung 7 Type the information as shown in the example Only needed if using HSC Extended Data communicatin format With the addition of the dynamic Output on off Rollover and Presets to the Output Tag area in HSC V2 1 these functions now have the ability to be controlled by separate tags in both the module Configuration and Output Tag areas This can lead to confusion and inconsistency if both locations are not equal By copying the Configuration tags to the Qutput tags the values in both locations will always be equal This will allow changes made in the HSC profile screens to automatically affect both locations resulting in the same value in each The Qutput words will then be the primary words used by the HSC for these functions This rung copies the values in the HSC Configuration words for Output Rollover and Preset to the Output words providing better synchronization between the Configuration and Output words If needed the user program should manipulate the values in the Configuration words for Output Rollover and Preset The rung s CPS instructions will then move them to the appropriate Output locations which will be dynamically sent to the module This rung does not affect the ability to make real time changes to the Output Rollover and Preset functions PS CPS PS Synchronous Copy File S
92. le on page 93 you will use either a Full profile Thin profile Generic profile Full profile suppott for software versions 15 and later include separate Counter and Output Configuration tab dialog boxes that make it easier to enter 1756 HSC operational data via a user interface that provides error checking and user friendly data entry See Chapter 5 for configuring a module with a full profile This section describes procedures for using a generic profile and modifying tags with a thin profile Software versions prior to 15 do not include a user interface that provides error checking and user friendly data entry Instead configuration tags have to be manually entered during the initial set up This is referred to as a thin profile A generic profile lets a prior software version use the functionality that s available only for the latest software For example a 1756 HSC module with software version 13 could use a generic profile to gain the output functionality available in software version 18 that lets you modify the outputs in real time by changing the rollover and preset values in the output tags A generic profile will create non specific tags with a name related to the modules slot location The tag names created will not reference any specific 1756 HSC module terminology IMPORTANT To download firmware revisions for your module go to http www rockwellautomation com support and choose Downloads Do no
93. len Bradley Bulletin 872 3 Wire DC Proximity Sensor Use the table and diagram to connect the 1756 HSC module to an Allen Bradley 872 three wire DC proximity sensor PNP Sourcing Black AO 12 24V DC Jumper B0 12 24V DC Jumper Z0 12 24V DC N O Blue PS A0 to BO Return to Z0 Return Return Allen Bradley Bulletin 872 r 40 12 24V 2 18 71 12 24V 3 Wire DC Z0 5V a M 3 Z1 5V mi ZO RET De 5 71 RET oe i BO 12 24V aye 7 B1 12 24V BO 5V Dio all Bl 5V __ B0 RET cpu 11 B1 RET 12 24V DC Black 9 2 24V Faia wi A1 12 24 A0 5V he 151g A1 5V Blue AD RET 18 17 1 A RET 12 24V DC Not Used G 20 19 Not Used Return Not Used Qz 20D Not Used Not Used 24 23 QD Not Used Out 0 26 25 Out 2 Out 28 27 Out 3 COMMON 0 130 29 COMMON 1 COMMON 0 ipa sf COMMON 1 COMMON 0 34 33 0D COMMON 1 DC 0 4 e 35 G DC 1 41602 Rockwell Automation Publication 1756 UMO007C EN P November 2011 Install and Wire the ControlLogix High speed Counter Module 49 Wire a PHOTOSWITCH Series 10 000 Photoelectric Sensor Use the table and diagram to connect wiring to a series 10 000 photoelectric sensor Application Any Z0
94. lue and direction of the rotation Rockwell Automation Publication 1756 UMO007C EN P November 2011 18 Counter Modes Encoder x1 This is a Bidirectional Count mode counting up or down using an incremental encoder with direction output Encoder x4 This is a Bidirectional Count mode using quadrature encoder signals with four times the resolution of X1 The 1756 HSC B module also offers the convenience of showing directional frequency by using any Counter mode If the count value is increasing the frequency is positive in the Totalizer tag If the count value is decreasing the frequency is negative in the Totalizer tag Where Count Values are Stored in Tags Mode Description Counter Encoder x1 Encoder x4 Present Value Tag Stored Value Tag Totalizer Tag Accumulated Count Stored Value Directional Frequency There are several methods for using and manipulating the count values Based on the state of the Z input the 1756 HSC module provides four modes of behavior if the application requires storage of the accumulated count value Store and Continue Mode Store Wait and Resume Store and Reset Wait and Start Store and Reset and Start In addition the 1756 HSC module features two softwate configurable tags that provide control of the starting and ending points of an accumulated count sequence These are the tags Preset Rollover The remainder of this chapter detail
95. manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is prohibited Throughout this manual when necessary we use notes to make you aware of safety considerations WARNING Identifies information about practices or circumstances that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you identify a hazard avoid a hazard and recognize the consequence SHOCK HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that dangerous voltage may be present BURN HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that surfaces may reach dangerous temperatures Pe Be IMPORTANT Identifies information that is critical for successful application and understanding of the product Allen Bradley Rockwell Software Rockwell Automation ControlLogix RSLogix Logix5000 PHOTOSWITCH RSNetWorx and TechConnect are trademarks of Rockwell Automation Inc Trademarks not belonging to Rockwell Automation are property of their respective companies Summary of Changes This manual contains new and updated information Changes throughout thi
96. mation Publication 1756 UMO007C EN P November 2011 Configure the 1756 HSC Module 63 The table lists the mode number and assigned tags for the HSC Data and HSC Data extended Comm Formats The HSC Data format does not create the Totalizer tag so directional frequency with the counters is not available Communication Format Modes and Tags Comm Format HSC Data Tags 1756 HSC version 1 x or later Operational Mode Mode Tag Value Present Value Stored Value Counter 0 Encoder X1 1 Accumulated count Stored value Encoder X4 2 Counter Not Used 3 N A N A Frequency 4 No of input pulses occurring in Frequency in Hz Rate Measurement sample period Comm Format HSC Data extended Tags 1756 HSC module version 3 x or later Operational Mode Mode Tag Value Present Value Stored Value Totalizer Counter 0 Encoder X1 1 Accumulated count Stored value Directional frequency Encoder X4 2 Counter Not Used 3 N A N A N A Frequency 4 No of input pulses occurring in Accumulated count Rate Measurement sample period Frequency 1 Frequency in Hz Period Rate No of 4 MHz pulses occurring in Acc mulated count Frequency 6 sample period Continuous Rate f Modes where frequency controls the outputs 2 B input state defines direction Counter mode 8 Rollover Preset settings apply See Appendix B for a complete list and description of configuratio
97. mer Support for initial help in getting your product up and running United States or Canada 1 440 646 3434 Outside United States or Canada Use the Worldwide Locator at http www rockwellautomation com support americas phone_en html or contact your local Rockwell Automation representative New Product Satisfaction Return Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility However if your product is not functioning and needs to be returned follow these procedures United States Contact your distributor You must provide a Customer Support case number call the phone number above to obtain one to your distributor to complete the return process Outside United States Please contact your local Rockwell Automation representative for the return procedure Documentation Feedback Your comments will help us serve your documentation needs better If you have any suggestions on how to improve this document complete this form publication RA DU002 available at http www rockwellautomation com literature www rockwellautomation com Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation NV Pegasus Park De Kleetlaan 12a 1831 Diegem Belgium Tel 32 2 663 0600 Fa
98. mer supply customer return Diodes D5 and D6 protect the power output transistors from damage due to inductive loads If local electrical codes permit outputs can be connected to sink current This is done by connecting the load between the power supply terminal and the customer Vcc terminal on the field wiring arm The output terminal is then connected directly to ground customer return Note that this wiring method does not provide inductive load protection for the power output transistors F1 Q14 D Customer 36 i Vcc G a i y S Out 0 015 D F2 G a A Da M S e Out 1 6 Customer z 80 Return 82 Customer Return G4 Customer Return 44802 Rockwell Automation Publication 1756 UM007C EN P November 2011 Application Considerations 113 Application Considerations successful installation depends on the type of input driver input cable length input cable impedance input cable capacitance and frequency of the input The following provides information on these installation factors for the 1756 HSC module Input Cable Length Maximum input cable length depends on the type of output driver in your encoder the kind of cable used and maximum frequency at which you will be running With a differential line driver 250 ft or less of high quality low capacitance cable with an effective shield and an operating frequency of 250 kHz or less will likely r
99. n input and output tags Rockwell Automation Publication 1756 UM007C EN P November 2011 64 Configure the 1756 HSC Module Set RPI The Connection tab on the Module Properties dialog box lets you enter a requested packet interval RPI The RPI guarantees the slowest rate at which the pulse count values will be produced to the owner controller The module s actual data transfer rate may be faster than the RPI setting But the RPI provides a defined maximum period of time when data is transferred to the owner controller E Module Properties en2t_126 8 1756 HSC B 3 1 General Connection Module Info Counter Configuration Output Configuration Backplane Requested Packet Interval RPI 2 ms 2 0 750 0 ms Inhibit Module I C Major Fault On Controller If Connection Fails While in Run Mode Use Unicast Connection over EtherNet IP Module Fault Status Offline 1 Choose from the options in the Connection tab Field Description Requested Packet Interval RPI Enter an RPI value or use the default Inhibit Module Check the box to prevent communication between the owner controller and the 1756 HSC module This option allows for maintenance of the 1756 HSC module without faults being reported to the controller Major Fault On Controller If Connection Check the box to create a major fault if Fails While in Run Mode there is a connection failure with the 1756 HSC module while in Run mode Fo
100. n Collector l 0 R1 R2 2K TAP z ig 1K 150 2 P n Input Output O4 y id 48 c1 D i R5 R6 ei Loe wwe Ya Ground 1 E 40 2 jb R3 R4 C3 Limit Switch or A 3 i 1 DC Proximity Switch 1 4K 150 D4 H Switch 412 to 24V 15 D5 Q2 Power pes UT D6 e Supply 17 C2 R7 R8 ies saww Ground 1 40 2 40 2 wed E 44801 Electromechanical Limit Switch When using an electromechanical limit switch the lower circuit in figure above it is recommended that you enable the input filter using RSLogix 5000 software to filter out switch contact bounce However this limits the frequency response to around 70 Hz This circuit would be similar when using DC proximity switches but bounce should not occur unless severe mechanical vibration is present Rockwell Automation Publication 1756 UM007C EN P November 2011 112 Application Considerations Output Circuits Drive Circuit In either case this example is similar to the Open Collector example and can use the following equation assuming a 2 0V drop across D4 Q2 Supply Voltage k V drop R1 if used R2 Available current The 1756 HSC module contains two isolated pairs of output circuits Customer supplied power ranging from 5 to 24V DC is connected internally through terminal Vcc to the power output transistors When an output is turned on current flows into the drain out of the source through the fuse and into the load connected to the ground of the custo
101. n the Store Wait and Resume mode the module reads the Present Value and places it into the Stored Value on the leading edge of Input Z stops accumulating the count in the Present Value as long as the Z input is high resumes accumulating the count in the Present Value when the Z input goes low retains the Stored Value until it is overwritten by new data from the next leading edge of a pulse on Input Z Rockwell Automation Publication 1756 UMO007C EN P November 2011 Incoming Pulses Present Value Tag in Logix Controller Z Input Stored Value Tag in Logix Controller Incoming Pulses Present Value Tag in Logix Controller Z Input Stored Value Tag in Logix Controller Store and Reset Wait and Start In the Store and Reset Wait and Start mode the module 10 1 12 13 14 15 16 17 18 19 20 10 n 0 0 o t2 310 0 o 1 2 A A Y y ACNE 3 3 Counter Modes 25 44902 reads the Present Value and places it into the Stored Value on the leading edge of Input Z and resets the count to zero 0 in the Present Value resumes normal counting from zero 0 after the Z Input goes low retains the Stored Value until it is overwtitten by new data from the next leading edge of a pulse on Input Z Store and Reset and Start 10 11 12 13 14 15 16 1
102. nd Q1 is always equal to the drop across the photodiode and R5 R6 We will call this V drop First consider the minimum requirement of I 4 mA The V curves for this photodiode typically has a 1 21 1 29V drop as the junction temperature vaties from 70 25 C Let s call it 1 25V With 4 mA current R5 and R6 will drop 80 4 Q x 4 mA 0 32V Thus at 4 mA Varop 1 25V 0 32V 1 57V Consider when I 8 mA or above With the temperature about halfway between 25 70 C Ve becomes about 1 25V R5 R6 will now drop 0 64V 80 4 Q x 8 mA That means Varop 1 25V 0 64V 1 89V The Vy of Q1 is now sufficient to start to turn Q1 on If the current through the photodiode increases to 9 mA Vy becomes 0 72V and Q1 is fully on Any additional current supplied by a 24V applied input is shunted away from the photodiode and dissipated in Q1 and D1 Rockwell Automation Publication 1756 UMO007C EN P November 2011 108 Application Considerations Thus V4 never exceeds about 2 0V regardless of the applied voltage In addition it is never less than 1 5V if the minimum of 4 mA is flowing Although there are some minor temperature effects on the photodiode drop you can expect the value V4rop to be relatively linear from about 1 6V to 2 0V as the current increases from 4 8 mA Look at the following 5V differential line driver example to see why this is important 5V Differential Line Driver Example You want to us
103. nication is prevented Physical Module Vendor Allen Bradley Product Type Analog Input Module Catalog Number 1756 IF16 Major Revision 3 Minor Revision 2 Rockwell Automation Publication 1756 UM007C EN P November 2011 Configure the 1756 HSC Module 79 EXAMPLE In the following scenario Disable Keying allows 1 0 communication The module configuration is for a 1756 IA16 digital input module The physical module is a 1756 IB16 digital input module In this case communication is allowed because the two digital modules share common data formats Module Configuration T7564A18 16 Point 79V 132V AC Input Vendor Allen Bradley B A Product Type Digital Input a UNO Module P Catalog Number 1756 IA16 FIF nu Major Revision 2 Minor Revision 1 1 Opon Hodie Prope en ce e Communication is allowed Physical Module Vendor Allen Bradley Product Type Digital Input Module Catalog Number 1756 IB16 Major Revision 3 Minor Revision 2 Download Configuration After you have changed the configuration data for a 1756 HSC module the change does not take affect until you download the new program that contains to the 1756 HSC Module that information This downloads the entire program to the controller overwriting any existing programs Follow these steps to download the new program 1 At the top left corner of t
104. normal module operation continues Improper use of on the fly changes may cause unintended machine operation when the store count is used as a trigger for machine sequencing The following illustrations show how the different modes store count values in the Present Value and Stored Value tags Rockwell Automation Publication 1756 UMO007C EN P November 2011 24 Counter Modes Store and Continue Mode Incoming Pulses 10 11 12 3 14 15 16 17 18 19 2 Present Value Tag 10 11 2 13 14 15 16 17 18 19 20 in Logix Controller i Z Input Stored Value Tag 8 es8 m 13 13 13 18 18 18 in Logix Controller 44900 In the Store and Continue mode the module reads the Present Value and places it into the Stored Value on the leading edge of Input Z continues to accumulate the Present Value based on presets and incoming pulses retains the Stored Value until it is overwritten by new data from the next leading edge of a pulse on Input Z Store Wait and Resume Incoming Pulses 10 11 12 13 M 15 16 17 18 19 20 Present Value Tag 10 1 in Logix Controller 2 3 14 4 14 15 16 Z nput Stored Value Tag 4 91 n m 1 4 14 14 14 14 in Logix Controller 44901 I
105. ode 19 B mode 19 settings 68 Z mode 19 FM certification 13 format Rockwell Automation Publication 1756 UMO010B EN P November 2011 124 Index frequency calculation sample period 31 33 continuous rate 32 mode HSC 30 module maximum 37 period rate 32 G gate reset input Z 23 grounding connecting ungrounded end of wiring 45 H HSC counter modes 17 data communication format 63 data extended communication format 63 diagnostics 81 electronic keying 73 encoder and counter modes 17 encoder mode 20 error codes 81 frequency mode 30 input Z 23 local chassis 57 module configuration 55 module fault reporting 14 module specific tags 13 overview 11 parts illustration 15 preset value 22 producer consumer 14 remote chassis 57 rollover value 22 RSLogix 5000 software 14 sample period 31 status indicators 14 store count 23 wiring 44 input Z gate reset 23 inputs HSC 68 installing the module 41 K keying electronic 15 L local chassis operation 57 modes encoder 20 encoder X1 18 encoder X4 18 21 module configuration 55 diagnostics 81 maximum frequency 37 0 output configuration 68 error codes 82 control assigning outputs to counters 26 tying outputs to counters 27 on off 27 operation 26 overview 26 status 26 P period rate frequency 32 Photoswitch series 10 000 photoelectric sensor 49 preset value mode 18 rate measurement illustration 31 remote chassis HSC module operation 57
106. oftware versions 15 and earlier Message Data vid Message instructions maintain the following characteristics Instruction Messages use unscheduled portions of system communication bandwidth One service is performed per instruction Performing module services does not impede module functionality such as counting incoming pulses Because message instructions use unscheduled portions of systems communication bandwidth the services requested of a 1756 HSC module are not guaranteed to occur within a specific time period Although the module response typically occurs in less than a second there is no specific time interval that reflects this response Message instructions cause a module service to be performed only once per execution For example if a message instruction sends new configuration data to the module the message instruction must be re executed to update and send the configuration data in the future For procedutes see the Logix5000 Controllers Messages Programming Manual publication 1756 PM012 Rockwell Automation Publication 1756 UMO007C EN P November 2011 Appendix D Introduction Types of Input Devices Application Considerations This appendix provides background for selecting the appropriate input device for yout 1756 HSC module explains the output circuit and provides you with information for selecting the type and length of input cabling To turn on an input circuit in the HSC module you must s
107. onalMode 0 2 Decimal SINT Local C OperationalMode U O 0 Decimal BOOL Hoocal t C OperationalMode 0 1 1 Decimal BOOL Hocal t C OperationalMode 0 2 0 Decimal BOOL Hu ocal C perationalMode 0 3 0 Decimal BOOL ocal1 C OperationalMode 0 4 0 Decimal BOOL Local C OperationalMode 0 5 0 Decimal BOOL ocal 1 C OperationalMode 0 5 0 Decimal BOOL ocat 1 C OperationalMode 0 7 0 Decimal BOOL I7 Local 1 C OperationalMode 1 0 Decimal SINT ocal1 C OperationalMode 1 0 0 Decimal BOOL Hocak1 C OperationaMode 1 1 0 Decimal BOOL H ocal C perationalMode 1 2 0 Decimal BOOL ocat 1 C OperationalMode 1 3 0 Decimal BOOL Heocat1 C OperationaMode 1 4 0 Decimal BOOL Hocat1 C OperationaModef1 5 0 Decimal BOOL Hocal t C OperationalMode 1 6 0 Decimal BOOL ocal1 C OperationalMode 1 7 0 Decimal BOOL 2 Click the in front of the C Configuration tag A list of configuration tags appears 3 Click the in front of the C OperationalMode 0 tag 4 Type a number for the mode that you want to use See page 63 in Chapter 5 for a list of the operational modes and the corresponding tag value The same procedures apply for entering other tag values Rockwell Automation Publication 1756 UMO007C EN P November 2011 104 1756 HSC Module History i i Ladder logic uses message instructions to change the module configuration Change Configuration g g g g during module operation for s
108. ource current through the input resistors sufficient to turn on the opto isolator in the circuit If no connection is made to a pair of input terminals no current flows through the photodiode of the opto isolator and that channel will be off Its corresponding input status indicator is off All six inputs are electrically identical There ate two basic classes of driver devices built in to encoders and other pulse sources Single ended Differential A single ended driver output consists of a signal and a ground reference A differential driver consists of a pait of totem pole outputs driven out of phase One terminal actively soutces current while the other sinks and there is no direct connection to ground Differential line drivers provide reliable high speed communication over long wires Most differential line drivers ate powered by 5V and are more immune to noise than single ended drivers at any operating voltage Any installation must follow customary good wiring practices separate conduit for low voltage DC control wiring and any 50 60 Hz AC wiring use of shielded cable twisted pair cables and so forth For more information see Industrial Automation Witing and Grounding Guidelines publication 1770 4 1 Rockwell Automation Publication 1756 UM007C EN P November 2011 106 Application Considerations Examples for Selecting Input Devices The following examples help you determine the best input type for your parti
109. physical module attributes are consistent with what was configured in the software Any feedback element that converts linear or rotary position absolute or incremental into a digital signal Linear encoder is a feedback element that directly converts linear position absolute or incremental into a digital signal Publication 1756 UMO007C EN P November 2011 118 Glossary encoder bandwidth exact match factory wiring field side field wiring hysteresis inhibit input intelligent I O module Rotary encoder is a feedback element that converts rotary position absolute or incremental into a digital signal Often the directly measured rotary position is used to determine a linear position through gearing e Absolute encoder is a feedback element that generates a digital code that is unique for each absolute position linear or rotary An absolute encoder usually provides the digital feedback signal in a Gray code to minimize errors Incremental encoder is a feedback element that generates a digital signal to indicate each incremental change of position linear or rotary An incremental encoder usually provides the digital feedback signal in quadrature form to indicate direction of motion An expression for maximum encoder speed in Hz May also refer to the maximum rate at which the control loop can accept encoder signals The actual bandwidth of the encoder and the capability of the controller to p
110. quencies Termination of one or both ends of the cable with a fixed resistor whose value is equal to the cable impedance will not necessarily improve reception at the end of the cable It will howevet increase the DC load seen by the cable driver Cable Capacitance Use cable with a low capacitance as measured per unit length High capacitance rounds off incoming square wave edges and takes driver current to charge and discharge Increasing cable length causes a linear increase in capacitance which reduces the maximum usable frequency This is especially true for open collector drivers with resistive pull ups For example Belden 9182 is rated at a very low 9 pF foot Cable Length and Frequency When cable length or frequency goes up your selection of cable becomes even more critical Long cables can result in changes in duty cycle rise and fall times and phase relationships The phase relationship between channels A and B in Encoder X1 and X4 mode is critical The maximum encoder input of 250 kHz is designed to work with Allen Bradley Bulletin 845H or similar incremental encoders with a quadrature specification of 90 22 and a duty cycle specification of 50 10 Any additional phase or duty cycle changes caused by the cable will reduce the specified 250 kHz specification For any application over 100 ft and or over 100 kHz use Belden 9182 a high performance twisted pair cable with 100 foil shield a drain wire moder
111. r disconnect the Removable Terminal Block RTB with field side power applied an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding 1 Align the circuit board with the top and bottom chassis guides as shown Top Guide Bottom Guide 20861 M Rockwell Automation Publication 1756 UMO007C EN P November 2011 42 Install and Wire the ControlLogix High speed Counter Module 2 Slide the module into the chassis until the module s top and bottom locking tabs click Locking Tab 20862 M Key the Removable Ll should key ES RTB to prevent inadvertently connecting the incorrect i RTB t i Terminal Block o your module When the RTB mounts onto the module keying positions will match up For example if you place a U shaped keying band in slot 4 on the module you cannot place a wedge shaped tab in slot 4 on the RTB or your RTB will not mount on the module Rockwell Automation Publication 1756 UM007C EN P November 2011 Install and Wire the ControlLogix High speed Counter Module 43 1 Insert the U shaped band with the longer side near the terminals pushing the band on the module until it snaps into place 20850 M 2 Key the RTB in positions that correspond to unkeyed module pos
112. r important information on this checkbox see Configure a Major Fault to Occur in the Logix5000 Controllers Information and Status Programming Manual publication 1756 PM015 Rockwell Automation Publication 1756 UMO007C EN P November 2011 Set Up Counter Configuration Configure the 1756 HSC Module 65 Field Description Use Unicast Connection on EtherNet IP Displays only for 1756 HSC modules using RSLogix 5000 software version 18 in a remote EtherNet IP chassis Use the default checkbox if there are no other controllers in Listen mode Clear the box if there are other listening controllers in the system Module Fault The fault box is empty if you are offline The type of fault displays in the text box if a fault occurs when the 1756 HSC module is online 2 Click OK The Counter Configuration tab on the Module Properties dialog box is identical for both the HSC Data and HSC Data extended Comm Formats However the HSC Data extended format includes the addition of the Period Rate and Continuous Rate frequency selections in the Operational Mode pull down menu Be sure to select only features that are compatible with your selected communication format See page 66 for Counter Configuration tab descriptions The Operational modes determine how the incoming pulses are counted The Storage modes allow the count values to be manipulated if the application requires storage of the accumulated count value
113. r logic An intelligent I O module may have digital I O circuits analog I O circuits or both 2 Contrasted with direct I O module page 117 Publication 1756 UM007C EN P November 2011 interval I O module isolated I O module jumper k keying listen only connection local I O major revision minor revision module slot multicast network update time NUT node off on Glossary 119 1 The length of time between events or states For example the length of time between when a signal is high may be desctibed as the interval between pulses 2 Compare duration page 117 and period page 120 1 In a programmable controller system a module interchangeable plug in item within a larger assembly that interfaces directly through I O circuits to the sensors and actuators of the machine process A module that has each input or output electrically isolated from every other input or output on that module A short conductor with which you can connect two points Kilo A prefix used with units of measurement to designate a multiple of 1000 Devices that allow only selected pairs of mating connectors to be plugged into each othet An I O connection that allows a controller to monitor I O module data without owning the module 1 I O connected to a processor across a backplane or a parallel link thus limiting its distance from the processor 2 Contrasted with remote I O page 120 A module revi
114. r project you cannot export and then re import the project as the module defined tags will not import properly A ladder logic routine also is suggested if you are using the HSC Data extended Comm Format This option allows you to change the output rollover and preset configuration settings in the output tags The duplication of tag data could result in values being overridden when the HSC Data extended Comm Format is selected Rockwell Automation Publication 1756 UMO007C EN P November 2011 1756 HSC Module History 101 The optional rung below will coordinate the values entered in the configuration settings for rollover preset and output in the output tag settings See page 71 in Chapter 5 for procedures Only needed if using HSC Extended Data communicatin format With the addition of the dynamic Output on off Rollover and Presets to the Output Tag area in HSC V2 1 these functions now have the ability to be controlled by separate tags in both the module Configuration and Output Tag areas This can lead to confusion and inconsistency if both locations are not equal By copying the Configuration tags to the Output tags the values in both locations will always be equal This will allow changes made in the HSC profile screens to automatically affect both locations resulting in the same value in each The Qutput words will then be the primary words used by the HSC for these functions This rung copies the values in the H
115. r the 75114 shows Von is about 3 35V at V 5 V Ioh 10 mA and 25 C 77 F Vo is about 0 075V under the same conditions This means V differential 7 Voh Vol 3 27V if the part is sourcing 10 mA Looking at the curves if the part were sourcing 5 mA you would see V gi 3 425 0 05 3 37V Rockwell Automation Publication 1756 UM007C EN P November 2011 Application Considerations 109 Assuming that you could supply 5 mA to the 1756 HSC input terminals how much voltage across the field wiring arm terminals would be required Vq would be about 1 6V as previously noted And 4 mA through 150 Q gives an additional 0 60V drop Thus you would have to apply about 1 6V 0 60V 2 20V across the terminals to cause a current of 4 mA to flow through the photodiode The 75114 gives about 3 3V at Voe 5V and 25 C 77 F Thus you know that this driver causes mote current to flow than the minimum required at 4 mA To determine how much current flows use the following equation V drive E V drop resistor 3 3V 1 6V 1 7V 1 5V 150 Q 11 3 mA As you can see 1 6V drop is too low Remember that V varies linearly from about 1 6V to 2 0V as Ip varies from 4 8 mA Recalculate assuming V gro 2 0V Vative Varop Vresistor 3 3V 2 0V 1 3V 1 3V 150 Q 8 7 mA The resulting 8 7 mA is consistent with our assumption of Varo 2 0V at Ip 8 mA This shows that driver 75114 causes about 8 mA to flow through th
116. ree wire DC proximity sensor 48 cage clamp RTB 46 connecting ungrounded end of wiring 45 connecting wiring to the RTB 44 module 44 photoelectric series 10 000 photoelectric sensor 49 recommendations 47 spring clamp RTB 46 using Belden 8761 cable 44 Rockwell Automation Publication 1756 UMO010B EN P November 2011 126 Index Rockwell Automation Publication 1756 UMO010B EN P November 2011 Rockwell Automation Support Rockwell Automation provides technical information on the Web to assist you in using its products At http www rockwellautomation com support you can find technical manuals technical and application notes sample code and links to software service packs and a MySupport feature that you can customize to make the best use of these tools You can also visit our Knowledgebase at http www rockwellautomation com knowledgebase for FAQs technical information support chat and forums software updates and to sign up for product notification updates For an additional level of technical phone support for installation configuration and troubleshooting we offer TechConnect support programs For more information contact your local distributor or Rockwell Automation representative or visit http www rockwellautomation com support Installation Assistance If you experience a problem within the first 24 hours of installation review the information that is contained in this manual You can contact Custo
117. related through repeating time patterns 2 Contrasted with synchronous page 121 See Ametican wire gauge page 115 A printed circuit board at the back of a chassis that provides electrical interconnection between the modules inserted into the chassis 1 A circuit whose two sides are electrically alike and symmetrical to a common reference point usually ground 2 Contrasted with unbalanced circuit page 121 The range of frequencies over which a system is designed to operate The bandwidth is expressed in Hertz between the highest and lowest frequencies 1 A communication link with only one channel encoded by on off switching Examples DH and DH links 2 Contrasted with carrier band link page 116 and broadband link page 115 An I O module whose communication with the scanner or processor is bidirectional and therefore uses both input and output image areas 1 A communication link that can have multiple channels Each channel signal modulates its own carrier frequency Example LAN 1 link 2 Contrasted with carrier band link page 116 and baseband link page 115 Publication 1756 UMO007C EN P November 2011 116 Glossary bus carriet band link cascade connection cascading timers counters channel chassis communication format compatible match configuration connection controlbus controller ControlNet network Coordinated System Time CST A single path or multiple parallel
118. ring a higher frequency the Scaler can be small If you are measuting a lower frequency the Scaler likely will be larger EXAMPLE Frequency No of pulses per sample period Scaler Time For example if the frequency 30 Hz and the Scaler 100 ms then the Present Value tag returned 3 and the Stored Value tag 30 Preset and rollover tag settings are active in this Frequency mode User defined preset and rollover commands provide control of the starting and ending points of incoming pulses thus affecting the values in the Totalizer tag See page 22 in Chapter 2 for preset and rollover tag details Rockwell Automation Publication 1756 UMO007C EN P November 2011 Frequency Modes 31 Sample Period for Frequency Mode As previously mentioned the Sample Period is a user defined time frame to count the number of incoming pulses for calculating frequency This fixed sample period of time can be set by varying the Scaler tag which can range from 10 2000 in 10 ms increments For example a Scaler value of 100 100 ms The default value is 1 second IMPORTANT A Scaler tag value of 0 equals a 1 second time period In the following frequency illustration three pulses have been accumulated during the user selected time period If you had selected 100 ms as the sample period the frequency returned to the controller is Frequency Counts Sample period 3 counts 100 ms 30 Hz
119. rocess encoder signals may not be the same An electronic keying protection mode that requires the physical module and the module configured in the software to match identically according to vendor catalog number major revision and minor revision 1 Wiring completed before the product was shipped from the factory in which it was built 2 Contrasted with field wiring page 118 Interface between user field wiring and I O module 1 Wiring connected by the user after the user receives the product 2 Contrasted with factory wiring page 118 1 The effect of residual magnetism whereby the magnetization of a ferrous substance lags the magnetizing force because of moleculat friction 2 The property of magnetic material that causes the magnetic induction for a given magnetizing force to depend upon the previous conditions of magnetization 3 A form of nonlinearity in which the response of a circuit to a particular set of input conditions depends not only on the instantaneous values of those conditions but also on the immediate past of the input and output signals A ControlLogix process that allows you to configure an I O module but prevent it from communicating with the owner controller In this case the controller does not establish a connection See sensor page 121 1 An I O module that provides some on board processing of input values to control some output values without going through the data table for control by the ladde
120. s revision are marked by change bars as shown to the right of this paragraph New and Updated This table contains the changes made to this revision Information Topic Pane The Attention and Warning tables have been updated 39 Rockwell Automation Publication 1756 UMO007C EN P November 2011 4 Summary of Changes Notes Rockwell Automation Publication 1756 UMO007C EN P November 2011 Preface 1756 HSC Module Features Counter Modes Frequency Modes Install and Wire the ControlLogix High speed Counter Module Table of Contents About This Publication lees 9 Who Should Use This Manual eee 9 Additional Resources eee 10 Chapter 1 TntroducttO nics eoe M oe eb ptus d otn ope et s 11 What is a High speed Counter Module 0 2 0 0 0 00 11 Encoder and Sensor Compatibility e eo b peste a 13 1756 HSC B Module Features nonon annann anue 13 Additional I O Module Features lle eee 14 1756 HSC Parts Illustration llle 15 Chapter 2 l troductlOn sad ere eter CR e asia Ace T A t RUTA aai 17 Counter Encoder Overview ccce 17 Counter Modes eo AS T AARAU DAC dese RE 19 Encoder Modes e vesbelerewes ues ek rvH ue Teen 20 Preset ziv pete ee ete a e e he dede 22 ROMOVEE 8 oso RU b ree e ALS eR dn 22 laput Z Gate Reset aet cera E odo e aso edu 23 SLofame MOE sche ir core dover sale dcin te eio dd ase fo Ps 23 Outputs tansy toate tei Rout te pe EET we Us verbi eR 26 Assign O
121. s each mode and the different configurations that you can use for specific needs of your 1756 HSC B module Rockwell Automation Publication 1756 UMO007C EN P November 2011 Counter Modes 19 Counter Mode This is the 1756 HSC module s default operational mode that counts incoming pulses using input A You can control the starting and ending points of the accumulated count depending on how you have configured the module In the Counter mode the count increases or decreases based on the state of input B which can be a random signal If input B 1s high the counter will count down If input B is low or floating that is not connected to a voltage source the counter counts up Counting is done on the leading edge of input A Input B Direction of Counter High Down Low or floating not connected Up Input Z 1s used in Counter mode only if a Store Count mode is enabled See page 23 for details on the Storage modes Counter Mode Pulse Count Increment Decrement Count Input Z optional Single phase Pulse Generator 1756 HSC Module Count Up Count Down Accumulated Count in Present Value Tag Directional Frequency in Totalizer Tag Positive Frequency Negative Frequency m Rockwell Automation Publication 1756 UMO007C EN P November 2011 20 Counter Modes Encoder Mode Encoder mode also counts incoming pulses However the phase relationship between two input channels A and B determines whether the direc
122. se internal damage and affect normal operation Follow these guidelines when you handle this equipment Touch a grounded object to discharge potential static Wear an approved grounding wriststrap Do not touch connectors or pins on component boards Do not touch circuit components inside the equipment Use a static safe workstation if available eStore the equipment in appropriate static safe packaging when not in use ATTENTION A The ControlLogix system has been agency certified using only the ControlLogix RTBs 1756 TBCH and 1756 TBS6H Any application that requires agency certification of the ControlLogix system using other wiring termination methods may require application specific approval by the certifying agency Rockwell Automation Publication 1756 UMO007C EN P November 2011 Install the 1756 HSC Module Install and Wire the ControlLogix High speed Counter Module 41 You can install or remove the module while chassis power is applied WARNING When you insert or remove the module while backplane power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector Worn contacts may create electrical resistance that can affect module operation WARNING When you connect o
123. sion that is updated any time there is a functional change to the module resulting in an interface change with software A module revision that is updated any time there is a change to the module that does not affect its function or software user interface A location for installing a module In typical modular construction modules plug into a backplane each module slides into a slot that lines it up with its backplane connectot Data transmissions which reach a specific group of one ot more destinations The smallest repetitive time interval in which the data can be sent on a ControlNet network The NUT may be configured over the range from 2 ms 100 ms by using the RSNetWorx software The connection point at which media access is provided 1 The inoperative state of a device the state of a switch or circuit that is open 2 Contrasted with on page 119 1 The operative state of a device the state of a switch or circuit that is closed 2 Contrasted with off page 119 Publication 1756 UMO007C EN P November 2011 120 Glossary output device owner controller period power supply producer consumer model program mode proximity switch sensor pulse quadrature remote connection remote I O removal and insertion under power RIUP requested packet interval RPI run mode 1 For a computer a CRT terminal or printer 2 For a programmable controller see actuator page 115 The controller
124. ss a serial link With a serial link remote I O can be located long distances from the processor 2 Contrasted with local I O page 119 ControlLogix feature that lets a user install or remove a module or RTB while power is applied A configured parameter that defines when the module will multicast data In this mode the controller program is executing Inputs are actively producing data Outputs are actively controlled Publication 1756 UM007C EN P November 2011 sensor single ended synchronous tag unbalanced circuit Glossary 121 A digital or analog transducer a device such as a limit switch push button switch pressure sensor or temperature sensor that generates an electrical signal through an input circuit to a controller 1 Unbalanced as when one side is grounded See unbalanced circuit page 121 2 Contrasted with differential page 117 1 In step or in phase as applied to two or more circuits devices or machines 2 Contrasted with asynchronous page 115 A named area of the controller s memory where data is stored like a variable For example an I O definition file may contain a tag definition for each I O with each I O definition containing a unique tag name by which the I O can be addressed 1 A circuit whose two sides are electrically dissimilar as when one side is grounded 2 Contrasted with balanced circuit page 115 Publication 1756 UMO007C EN P November 2011 122 Gloss
125. steps are for converting an older profile to a program with software version 18 and later 1 Write down the 1756 HSC module configuration tag data for the generic profile You will need this information for step 4 2 Delete the generic profile module from your project in the I O Configuration folder 3 Create a new 1756 HSC module by using the version 18 or later profile in the deleted genetic profile slot Rockwell Automation Publication 1756 UMO007C EN P November 2011 102 1756 HSC Module History 4 Re enter the 1756 HSC module configuration data that you wrote down in step 1 that matches the generic profile configuration 5 Do a global search and replace of the prefix for each of the generic references with the tag prefix for the full profile Examples Replace HSC_IN with Local 3 for a local module in slot 3 Replace HSC_OUT with Local 3 O for a local module in slot 3 Replace HSC_CONFIG with Local 3 C for a local module in slot 3 A global search and replace is needed only for those tags referenced in ladder logic For example if there is no configuration tag referenced in ladder logic it s not necessary to perform a search and replace on the C tags 6 Download your program 7 Go to Run mode to execute the ladder logic Edit Thin Profile Tags Use this section if you want your 1756 HSC module running the original functionality and your version of RSLogix 5000 software is e
126. t backflash your module s firmware from firmware revision 3 x to 2 x or 1x Attempting to backflash or downgrade a module s firmware from 3 x to 2 x or 1x will irreversibly damage the module 1756 HSC modules at firmware revision 2 x or 1x cannot be flash upgraded to any firmware revision 3 x because 3 x modules have a hardware update Rockwell Automation Publication 1756 UM007C EN P November 2011 1756 HSC Module History 95 Configure a Generic Profile Yov vill use a generic profile if your application requires the use of rollover and preset in output tags and your RSLogix 5000 software is earlier than version 18 for either module series A or B your RSLogix 5000 software is earlier than version 18 for two additional module series B modes Period Rate frequency Continuous Rate frequency A genetic profile copies an ACD file that contains the identical tag structure that is included in software version 18 You must use the 1756 Generic Profile as indicated in the procedures Ladder logic lets you copy the module information between the user defined data types and the module defined data types to allow the controller and the 1756 HSC module to exchange data IMPORTANT Before beginning configuration you should download the following file for either the series A or series B application Generic Connection for the 1756 HSC Ser A Rev 2 1 Ser B Rev 3 X This file is available at the Rockwell Automation Sample Code websi
127. ta is the polarity difference between the wires when one is high the other is low Neither wire is grounded The circuit may be either a balanced circuit a floating circuit or a circuit with a high impedance path to ground from either end Usually used in reference to encoders analog I O circuits and communication circuits 2 Contrasted with single ended page 121 1 A switching circuit that has only two states on and off 2 A circuit that provides a step function 3 Contrasted with analog circuit page 115 An I O connection where the controller establishes an individual connection with I O modules 1 An I O module for which each input or output that has an individual connection that corresponds directly to a data table bit or word that stores the value of the signal at that I O circuit digital or analog This allows the ladder logic to have direct access to the I O values 2 Contrasted with intelligent I O module page 118 Option that turns off all electronic keying to the module Requires no attributes of the physical module and the module configured in the software to match The process of transferring the contents of a project on the workstation into the controller 1 The time during which something exists or lasts For example the length of time that a signal is high may be described as the duration of a pulse 2 Compare interval page 119 and period page 120 A system feature which makes sure that the
128. tag structure and is left zero the output will instead be Off during Program mode To coordinate the configuration tags with the output tags we recommend that you create a ladder logic routine to copy the Configuration tag C output rollover and preset definitions to the Output O tags This will help synchronize the data tags when the configuration tags are established or modified the same data will be used in the output tags Follow these steps to copy configuration definitions to output tags 1 On the Controller Organizer click the in front of Main Task A sub menu appears 2 amp 3 Tasks EA MainTask E C MainProgram Program Tags o f a1 i it in ba 2 Right click MainRoutine and choose Open A new rung in ladder logic appears 3 Atthe top of the ladder logic workspace click the File Misc tab al kal FAL rsc coP FLL ave SRT STD size CPS gt 4 ComputeMath Move Logical File Misc File shift 4 Drag and drop File Synchronous Copy CFS onto the first rung Rockwell Automation Publication 1756 UMO007C EN P November 2011 72 Configure the 1756 HSC Module 5 Type the following information Source Local 3 C Output 0 Dest Local 3 O Output 0 Length 4 this is the size of the array with 4 outputs 0 1 2 3 Your routine should look like the following example for a 1756 HSC module in a slot PS Synchronous Copy Fi
129. te http samplecode rockwellautomation com After you have downloaded and opened the sample code ACD file follow these steps to create a generic profile 1 In RSLogix 5000 software open or create a project for your controller From the File menu choose New to access the New Controller dialog box to create a controller name 2 On the Controller Organizer right click I O Configuration and choose New Module The Select Module window appears 3 Click the next to Other to display a list of I O modules 4 Select a generic module and click OK Rockwell Automation Publication 1756 UMO007C EN P November 2011 96 1756 HSC Module History The New Module dialog box appeats x Type 1756 MODULE Generic 1756 Module Fes ieee r Connection Parameters Assembly 5 Instance Size Name Generic Connection HSC Input pe c fi 32 bit Description Dutput 131 26 a 32 bit Configuration 13 n5 eu i gt Comm Format EN eas npu m mui ore zi Status Output aa IV Open Module Properties Cancel Help 5 Type a name for the module in the Name box 6 In the Comm Format pull down menu choose Data DINT IMPORTANT The Data DINT communication format must be chosen to use the correct connection parameters as shown in the sample New Module dialog box Also in the generic module configuration configuration data is created as an array of bytes User defined tags are cop
130. the value at which an output Yes turns OFF Values range from 0 16 777 214 C Output y ToThisCounter SINT Decimal Designates the counter to which an output is tied Yes 0 Not tied to counter e 1 Tied to counter 0 2 Tied to counter 1 C Output y FaultMode SINT Selects the behavior an output takes if a controller Yes fault occurs e 0 Outputs turn OFF 1 Outputs turn ON 2 Counter continues to determine outputs operation C Output y ProgMode SINT Selects the behavior an output takes when transitioning into Yes Program Mode 0 Outputs turn OFF 1 Outputs turn ON 2 Counter continues to determine outputs operation This setting may be overridden by the output tag setting See page 22 and page 23 in Chapter 2 for details a Configuration tags can be changed d 1756 HSC Module Output Tags O ResetCounter x ring operation by using a message Module Reconfigure command Type BOOL Rockwe Output Structure You must use output tags to change module configuration during operation The table lists and defines 1756 HSC module output tags IMPORTANT Some of the tags in the table below are followed by an x Style Decimal ora y The x indicates the same tag information applies for Channel 0 and Channel 1 on the 1756 HSC module The y indicates the same tag information applies for the four outputs 0 3 on the 1756 HSC module Definition Change Dur
131. tion information before downloading configuration to the owner controller and module Otherwise you must issue a reconfigure command from the controller Access the 1756 HSC data structures through the tag monitor to make specific configuration changes See Appendix B for tag descriptions After reviewing Chapter 2 and Chapter 3 for a better understanding of the capabilities of your 1756 HSC B module you are ready to configure the module by using RSLogix 5000 programming software version 18 and later This section provides instructions and screen facsimiles for creating a 1756 HSC B module IMPORTANT RSLogix 5000 software version 15 and later lets you add I O modules online When using any previous version you must be offline when you create a new module The following steps assume that you have started the RSLogix 5000 programming software and have created a controller 1 On the Controller Organizer right click I O Configuration and choose New Module Offline D E RUN Path nc No Forces oK b No Edits E a 4 Ala Redundancy MB B erroris E Controller L63 New Controller A Controller Tags Controller Fault Handler Power Up Handler B6 Tasks EA MainTask E Cf MainProgram Unscheduled Programs Phases H 6 Motion Groups E Ungrouped Axes Add On Instructions Data Types Gi User Defined E Strings Cy Add On Defined E Predefined Eih Module Defined Trends aS 5 89 1756 pe D Ae Mode
132. tion of the count is up or down In Encoder x1 mode an increasing count results when channel B is 90 ahead of channel A The count is initiated on the rising edge of channel A and the direction of the encoder is clockwise positive The module produces a decreasing count when channel A is 90 ahead of channel B The count is initiated on the falling edge of channel A and the direction is counterclockwise negative By monitoring both the number of pulses and the phase relationships of signals A and B you can accurately determine the position and direction of the rotation The illustration shows the phase relationships between channels A and B for the x1 mode Input Z is used in Encoder mode only if a Store Count mode is enabled See page 23 for details on the Storage modes Encoder x1 Mode Input A Input Z optional Encoder 1756 HSC Module B Leads A 90 A Leads B 90 Accumulated Count in Present Value Tag Directional Frequency in Totalizer Tag Positive Frequency Negative Frequency m Rockwell Automation Publication 1756 UMO007C EN P November 2011 Input A Input B Accumulated Count in Present Value Tag Directional Frequency in Totalizer Tag Counter Modes 21 Encoder x4 Encoder x4 mode is identical to x1 except this mode counts on the leading and trailing edges of A and B to provide a greater number of pulse counts The greater the number of pulse counts the better the module can determine
133. uency Mode Period Rate valid with HSC Data extended format only Continuous Rate valid with HSC Data extended format only See Chapter 2 and Chapter 3 for details Rockwell Automation Publication 1756 UMO007C EN P November 2011 and illustrations on Counter and Frequency mode operations Field Storage Mode Configure the 1756 HSC Module 67 Description Choose how the pulse count will be stored with the mode selected in the above field if required for an accumulated count These are the values No Store Mode default Store and Continue Mode Store Wait and Resume Mode Store and Reset Wait and Start Mode Store and Reset and Start Mode See Storage Modes in Chapter 2 for details Rollover Defaults to zero 0 which is the equivalent to a full count range 16 777 214 When the accumulated count value in the Present Value tag reaches the rollover value it resets to zero 0 and begins counting again Range is 0 16 777 214 This configuration setting can be overridden by a value in the Output tag for the HSC Data extended format only See Rollover in Chapter 2 for details Preset Box defaults to zero 0 if a Preset command is issued The 1756 HSC module s Present Value tag will be set to the present value Range is 0 Rollover value This configuration setting can be overridden by a value in the Output tag for the HSC Data extended format only See Preset in Chapt
134. utputs to Counters 155 i esee s EN Exe RE 26 Cour pnt Operon s obe Pro ont E TOR a Be herr 26 Chapter 3 Tntt ductiODa els e Rettore ee RA ee HAG 29 Frequency OVeODUIeS Gauss Cox a ex Wi pao de M occa Vo a RAE a 29 ErtequenoyMOde a itas ds pente ete eg P Mie aah teense 30 Sample Period for Frequency Mode 0 000 000 00 31 Period Rate and Continuous Rate Modes lisse 32 Sample Period for Period Continuous Rate Modes 33 Output Operation eye oov ni ehe E ADETA E e FE a 35 Period Rate Continuous Rate Output Examples 36 Masinsum P reddenep ss Peste bees va fo T E VERIS TRE 37 Chapter 4 Tattoduction r oeei ea EE E EE RS RS V ERE NEN 39 Install the 1756 HSC Module 0 ccc cc ee ene 41 Key the Removable Terminal Block 232a d tree dr trop eese pes 43 Witing the Module cies c vac Cere ri Ep bb re ce reta 44 Connect the Wites cle RETE RB ev e pe Rau 44 Connect Unprounded End of the Cable 5 12 ok rn van 45 Publication 1756 UMO007C EN P November 2011 6 Table of Contents Configure the 1756 HSC Module Module Diagnostics 1756 HSC Status Indicators 1756 HSC Data Structures Two Types of RTBs each RTB comes with housing 46 Recommendations for Wiring Your RTB 4 47 Wite CT Fem Lu S ow sistere oie yt alte et ceste d 47 Wire an Allen Bradley 845 Incremental Encoder 47 Wire an Allen Bradley Bulletin 872 3 Wire DC Proximity Sensor 48 Wire a PHO
135. x 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1756 UM007C EN P November 2011 Supersedes Publication 1756 UM007B EN P October 2009 Copyright 2011 Rockwell Automation Inc All rights reserved Printed in the U S A
136. x 5000 software and receive a Communication fault message the Connection tab lists the type of fault under Module Fault Wil Module Properties Local 5 1756 HSC 1 1 General Connection Module Info Counter Configuration Output Configuration Backplane Requested Packet Interval RPI 10 04 ms 2 0 750 0 ms Inhibit Module Module Fault Code 1580204 Connection Request Error Connection request timed out Major Fault On Controller If Connection Fails While in Run Mode Status Faulted Cancel Help is table describes troubleshooting procedures for the 1756 HSC module roubleshoot the This table describ bleshooting procedures for th dul Module Description The present count does not move into the stored count when Z input is pulsed Take this action 1 Make sure the Storage mode is not set to 0 2 Make sure the Z input pulse width is within the specification that is the pulse width is long enough The counter does not increment or decrement when there are pulses on the A input or B input 1 Make sure there is a value on the Rollover register 2 Make sure the module is not configured for Frequency mode The output does not turn On when the On Off window is selected and the counter value is within the On Off window Make sure the C Output x To ThisCounter is not set to 0 which means Not Tied to Counter The outputs do not turn off despite a module f
137. xOveview S Ta Configure a 1756 HSC B Module by using RSLogix 5000 Software 59 Version 18 and Later Set Up Counter Configuration 65 Set Up Output Configuration 68 Copy Configuration C Output Rollover Preset Tags to Output 0 Tags 71 Electronic Keying 73 Download Configuration to the 1756 HSC Module 79 Before configuring your 1756 HSC module in a local or remote chassis you must have an understanding of how the module operates with the controller in the ControlLogix system Every 1756 HSC module must be owned by a Logix5000 controller This owner controller stores configuration data for every 1756 HSC module that it owns The owner controller sends configuration information to the modules it owns anytime the module has not been configured generally this occurs on a module powerup or a controllet initiated reconfigure Adding the 1756 HSC module to the I O configuration tree of the RSLogix 5000 programming software creates configuration and I O data structures and tags for the 1756 HSC module Rockwell Automation Publication 1756 UM007C EN P November 2011 56 Configure the 1756 HSC Module A remote chassis also known as a networked chassis contains the 1756 HSC module but not the module s owner controller See page 57 for important information about running RSNetWorx software with a remote chassis The illustration shows how the module communicates with its owner controller If connections are severed or compromise
138. ynchronous Copy File Synchronous Copy File Source Local 3 C Output 0 Source Local 3 C RollO ver 0 Source Local 3 C Preset 0 Dest Local 3 0 Qutput D Dest Local 3 O RollO ver 0 Dest Local 3 0 Preset 0 Length 4 Length 2 Length 2 Rockwell Automation Publication 1756 UMO007C EN P November 2011 Electronic Keying Configure the 1756 HSC Module 73 When you create a new module you can choose how specific the keying must be when a module is inserted into the 1756 HSC module s slot in the chassis IMPORTANT Modules that are using Major Revision 3 x or later with RSLogix 5000 software versions 15 17 must use Compatible Keying You must upgrade to version 18 if Exact Match is required The electronic keying feature automatically compares the expected module as shown in the RSLogix 5000 I O Configuration tree to the physical module before I O communication begins You can use electronic keying to help prevent communication to a module that does not match the type and revision expected For each module in the I O Configuration tree the user selected keying option determines if and how an electronic keying check is performed Typically three keying options are available Exact Match Compatible Keying Disable Keying You must carefully consider the benefits and implications of each keying option when selecting between them For some specific module types fewer options are available Electronic keying is base

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