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Very High-Speed Counter Modules

1. 0 ZF BF AF FS FS FS FS Decimal Position 8 bit value used to modify the present channel data display Active Output Assembly Assembly number 0 105 or 106 Time Base PWM Period 16 bit value used to set the time base or PWM period Gate Interval 8 bit value used to set the gate interval Publication 1734 UM 003B EN P August 2000 3 2 Very High Speed Counter M odule Input and Output Data 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 0 Scalar 8 bit value used to divide the Z input by 2 Output Ties 0 0 J0 JO JO T3 T2 T1 TO Output Ties 1 0 J0 10 0 T3 T2 T1 T0 Rollover Value 32 bit value at which the counter is commanded to rollover Preset Value 32 bit value the counter is to be set to when CP is asserted On Value 1 32 bit value that sets the compare window Off Value 1 32 bit value that sets the compare window On Value 2 32 bit value that sets the compare window Off Value 2 32 bit value that sets the compare window On Value 3 32 bit value that sets the compare window Off Value 3 32 bit value that sets the compare window On Value 4 32 bit value that sets the compare window Off Value 4 32 bit value that sets the compare window PWM Safe State Value 16 bit safe state value for the PWM signal Counter Control SS Value Output Control SS Val
2. 1 8 Operating Mode Features 1 9 Chapter 2 What This Chapter Contains 2 1 Before You Begin sac soa eke MEGS PE Se 2 1 Install the Mounting Base Assembly 2 1 Install an I O Module 2 2 Install the Removable Terminal Block 2 4 Remove a Mounting Base 2 4 Wire the Modules ek Ee eth Sees 2 5 Chapter 3 What This Chapter Contains 3 1 Data Table cat nn nana wh Weve dak Ge ae Te TO ANA 3 1 Detailed Description of Data Table Information 3 2 Stored Accumulated Channel Data Input Word 2 3 2 Module Channel Status and Programming Error Codes Input Words 3 and 4 3 2 Publication 1734 UM 003B EN P August 2005 Configure Your Module Access Instantiated Instances Troubleshoot with the Indicators Configure Modules in RS Logix 5000 Index Configuration Data 3 4 Counter Configuration Configuration Word 1 3 5 Filter Selection Configuration Word 2 3 5 Decimal Position Configuration Word 3 3 6 Word 4 is reserved 3 24 45 6a ee wee RA RS 3 6 Time Base and Gate Interval Configuration Words pandi O hed sy aoe be ah ae ew ed PR eR Be 3 6 Scalar Configuration Word 7 3 7 Scalar Selection Rae eS 3 7 Rollove
3. Byte E IT Values in decimal eae 2 Click Execute m Receive Data Size Data received from the device Byte z 00 00 00 00 00 OF 0000 3 Data received and status Eo E information is recorded here Cose Hp 4 Click Close to finish Available assemblies are e Assembly 101 is produced for a polled connection e Assembly 102 is produced for a Change Of State COS connection e Assemblies 103 104 107 and 108 are by Explicit message only e Assemblies 105 and 106 are consumed in a polled connection as directed by parameter 4 Data may be read get or written set using an Explicit Message For example to read the Present Channel Data assembly 10149 6516 can be requested Data is ordered as follows byte 0 is the least significant byte 8 bit byte Byte 0 16 bit word Byte 0 byte 1 32 bit long word Byte 0 byte 1 byte 2 byte 3 In this example the table shows assembly 101 for the 1734 OE module OE Get 04 Assembly 65 Present Data 03 Data Attribute Publication 1734 UM 003B EN P August 2005 5 4 Access Instantiated Instances Publication 1734 UM 003B EN P August 2005 Instances Services Field Bytes 101 0x65 Get Present Channel Data Status 102 0x66 Get Stored Channel Data Status 103 0x67 Get Present Channel Data Stored Channel Data Status 104 0x68 Get Programming Error Co
4. Publication 1734 UM 003B EN P August 2005 4 6 Configure Your Module 2 From the counter module dialog complete the actions shown in the figure for the General dialog 1734 YHSC247A Counter Module Eis The module s name appears here Type a description here The module s address appears here This field is read only This dialog also shows the module s device identity These fields are read only At any point you can click here to finish changing configuration parameters CTE m Se ea If configuration changes are made in offline mode they do not take effect until the system goes online Publication 1734 UM 003B EN P August 2005 Configure Your Module 47 3 From the General dialog click Device Parameters and complete the actions shown in the figure EDS Editor This dialog appears after clicking the Device Parameters tab If you want the existing parameters uploaded from the module select Upload The following dialog then shows the existing parameters set on the module Q Use this pulldown menu to 1734 VHSC24 A Counter Module edit or view the parameters Available choices are Configuration POINTBus Broadcast Baud Rate 125 kHz t B l Broadcast AutoBaud Enable 2 A B Z Input Fiter 3 Decimal Position 0 4 Active Output Assembly 0 5 Time Base or PWM Period 0 6 Gate Interval 0 7 Scalar 0 8 Output 0 Ties 0 Output 1 Tie
5. 15 Complete one of these e Click another tab at the top of the dialog or e Click OK which closes the dialog or e Click Cancel to return to default values or e Click Apply to save changes you made on any of the dialogs and continue to display the dialog noting that you enable the Apply button when you make changes to any of the dialogs Publication 1734 UM 003B EN P August 2005 H A 10 Configure M odules in RSLogix 5000 Software Use this dialog to make On Value and Off Value entries for each output you select If you make no entries for Outputs on this dialog leave On Value and Off Value entries as 0 otherwise use these procedures E Module Properties myAaent 3 1734 HSC24 C 3 1 Work with the Output Configuration Dialog General Connection Module Info Fault Program Action Counter Configuration Output Configuration Outputs On Value Off Value 0 1 window ff 0 fF FF Window 2 0 foo E E widow of 0K r Window4 of oD r Status Offline Cancel Help 1 Check a checkbox for Outputs 2 Select entries for On Value and Off Value referring to the table 3 Complete one of these e Click another tab at the top of the dialog or e Click OK which closes the dialog or e Click Cancel to return to default values or e Click Apply to save changes you made on any of the dialogs and continue to display the dialog noting that you enable the Apply button when you make changes
6. 0 A 0 Chassis ground 1 Aret 1 Chassis ground 2 B 2 Out 1 RET 3 Bret 3 Out 0 RET 4 Z 4 Vaux 5 Zret 5 Vaux 6 Out 0 6 Vaux 7 Out 1 7 Vaux Chapter 3 What This Chapter Contains Data Table Very High Speed Counter M odule Input and Output Data In this chapter you learn about the input and output data table of your 1734 VHSC24 and 1734 VHSC5 Modules For More Information About SeePage Data Table 3 1 Detailed Description of Data Table Information 3 2 Output Data 3 5 Configuration Data 3 6 Communicating Real Time Information 3 11 The following table shows the complete format of the input and output data 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 0 Input Information Present Channel Data 32 bit Value of the present counter state Stored Channel Data 32 bit value of the stored accumulated count Status PE EF NR FS IFS OS JOS O ZS BS AS C1 CO ZD 0 Programming Error Code PE 0 0 0 0 E10 E9 E8 E7 E6 E5 E4 E3 E2 El 0 Output Information Counter Control 0 0 0 0 0 VR CP CR Output Control DS ES OE FO DS ES OE FO PWM Value 16 bit decimal value with range from 0 9500 0 95 00 Configuration Information Counter Configuration Zi MD MD MD CF CF CF CF Filter Selection
7. modes of operation 1 2 module installation 2 2 module status indicator 6 1 module channel error bits 3 3 mounting base removal 2 4 mounting base assembly 2 1 N netw ork status indicator 6 2 new data indicator 1 9 node commissioning tool 4 2 node setting out of box 4 2 0 operating mode features 1 10 operation continuous rate mode 1 7 counter mode 1 2 encoder mode 1 3 pulse width modulation mode 1 8 rate measurement mode 1 8 scalar 1 6 output control 1 12 output data control w ord 3 5 output status indicator 6 2 output ties 3 9 outputs 1 2 Publication 1734 UM 003B EN P August 2005 2 Index p parameter setting 4 4 period rate mode operation 1 5 period rate mode 1 2 positioning the keyswitch 2 3 present channel data 3 2 preset configuration 3 10 pulse width modulation mode 1 2 pulse width modulation mode operation 1 8 pulse width modulation output word 3 6 PWM mode 1 2 PWM timebase selection 3 8 R rate measurement mode 1 2 rate measurement mode operation 1 8 rollover configuration 3 10 RTB installation and removal 2 4 S safe state configuration 3 11 scalar 3 9 scalar operation 1 6 Publication 1734 UM 003B EN P August 2005 scalar selection 3 9 selecting a filter 3 7 selecting counter type 3 6 selecting the scalar setting 3 9 setting module parameters 4 4 setting rollover counts 3 10 setting safe state values 3 11 setting the compare windows 3 10 setting the counter gate in
8. This bit is unaffected by Z Invert ZI in the Counter Configuration word B input Status BS This bit indicates the present status of the B input 1 indicates B is ON 0 indicates B is OFF A input Status AS This bit indicates the present status of the A input 1 indicates A is ON 0 indicates A is OFF C 1 0 Stored data count This count cycles through 00 01 1 0 11 00 Each time the stored accumulated count words are updated C 1 0 is incremented This feature assumes the host s sample rate including network delay and program scan is as fast or faster than the frequency of the event which updates C 1 0 Zero frequency Detected ZD This bit is operational when frequency configurations are programmed configurations period rate 5 continuous rate 6 rate measurement 7 In period rate 5 and continuous rate 6 configurations counts are acquired during the ON state of the Z input At very low frequencies the counter saturates indicating a zero frequency detect The time it takes to determine a zero frequency in these two configurations can be as long as 6 7 seconds 16 777 216 counts x 1 5 MHz x 2 half cycles of Z In rate measurement 7 configuration pulses on the A input are counted over a sample interval specified by the time base The time it takes to determine a zero frequency in this configuration is determined by the sample interval for example time base 0 300 second therefore 300 m
9. and continuous rate 6 configurations If the filter is applied then the filtered Z is scaled Only one bit of the scalar should be set Selecting a scalar causes accumulated counts to be adjusted accordingly Selecting a scalar of 128 increases the accumulated count by 128 after 128 Z pulses are received We highly recommend that anytime Z is scaled divide by 2 4 8 the Z input should be filtered otherwise noise could cause erroneous frequency readings Scalar Selection 07 o6 los o4 03 02 Tor 00 scatart o fo Jo fo o Jo Jo Ti Z Fmin 0 149 Hz o lo lo fo o Jo 1 To 2 2 Fring 0 298 Hz 0 lo lo fo o Ja Jo To 2 4 Fring 0 596 Hz o fo lo fo 1 Jo Jo To 278 Fri 1 192 Hz 0 lo fo Ja fo lo Jo 0 2 16 Frin 2 384 Hz o fo l Jo fo fo o To 2 32 Fin 4 768 Hz o J lo lo fo fo o Jo 2 64 Fri 9 537 Hz 1 lo o Jo Jo lo fo 0 7 128 Fain 19 073 Hz 1 Where Fmin indicates the frequency at which the zero frequency detect is asserted due to counter overflow Output 0 1 Ties Configuration Words 8 and 9 The bits in these two bytes connect the specified output to the appropriate compare window There are 4 windows associated with the counter Each output may be connected to any number of windows from 1 to all 4 The bits are defined as follows TO Tie Output to 1st Compare Window also the PWM signal in PWM 3 configuration T1 Tie Output to 2 Compa
10. from the base 4 Remove the module to the right of the base you are removing The interlocking portion of the base sits under the adjacent module 5 Use a small bladed screwdriver to rotate the orange DIN rail locking screw on the mounting base to a vertical position This releases the locking mechanism 6 Lift the mounting base straight up to remove Wire the Modules Refer to the figures and tables to wire the modules WARNING 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 Publication 1734 UM 003B EN P August 2005 2 8 Install the M odule Publication 1734 UM 003B EN P August 2005 Module Status Status Network Statu a Network Status Status of Input A Status of Input B Status of Input Z Status of Output 0 Status of Output 1 Input A Input Aret Chassis hassi P AA pret Ground Graand 3 Input B P Input Bret RET 0 RET 1 Input Z aia Input Zret Vaux Vaux Out 1 HW W Out 0 u aux aux AA 42016 Module 1 Module 2 0 1 0 1 A Aret has has nd ga 3 B Bret i RET 3 RET 0 1 4 5 4 5 Z Zret Vaux Vaux 6 7 6 7 n Waux Vaux Module 1 Terminations Module 2 Terminations
11. is out of range gt 0x01000000 E3 A configuration requiring time base was selected and no gate interval was set OR Gate interval is out of range gt 200 OR Product of time base and gate interval is greater than 3 seconds E2 A time base was entered that is not a multiple of 10 OR Time base is out of range gt 3000 or 3 seconds El ZF BF AF were selected and no filter was programmed OR Multiple filters were selected EO A reserved configuration mode was programmed Publication 1734 UM 003B EN P August 2000 3 4 Very High Speed Counter M odule Input and Output Data Publication 1734 UM 003B EN P August 2000 EEPROM Fault status bit EF If a fault is detected with the EEPROM during power up tests this bit is asserted to 1 It indicates that the content of the EEPROM has been corrupted most likely caused by loss of power during an executing write Not Ready status bit NR Whenever power is applied to the module the hardware must be initialized During this time the NR bit is asserted and the green module status indicator flashes Output Fault Status indicators FS where bit 11 is output 1 and bit 10 is output 0 A 1 indicates the output is either shorted or open Output Status indicators OS where bit 9 is output 1 and bit 8 is output 0 A 1 indicates the output is ON 0 itis OFF Z input Status ZS This bit indicates the present status of the Z input 1 indicates Z is ON 0 indicates Z is OFF
12. settings this becomes the base configuration for the next change in Connection and Data Format settings When you select Apply you lose all configuration data from previous data formats See the table for a listing of tags and dialogs based on Connection type Connection Type Tags Dialogs Data Input General Output Connection Configuration M odule Information Fault Program Action Counter Configuration Output Configuration Listen Only Input General Connection Module Information Publication 1734 UM 003B EN P August 2005 Configure Your Module Use the Help Button Configure Modules in RSLogix 5000 Software A 3 To configure your module in RSLogix 5000 use this procedure 1 Configure your adapter referring to the user manual for your adapter for information on how to configure the adapter and add modules to the I O configuration to include selecting a controller and communication module Add a 1734 VHSC3 or 1734 VHSC24 specialty module according to the instructions in your adapter user manual From the Connection dialog select a value for the Requested Packet Interval RPI entry e Default value is 80 0 milliseconds e Range is 2 0 to 750 0 milliseconds From the Connection dialog leave these unchecked e Inhibit Module e Major Fault On Controller If Connection Fails While in Run Mode Complete entries for these dialogs as explained in this chapter e Fault Program Action e Counte
13. 0 Hz x 128 is 25 kHz Very High Speed Counter M odule Input and Output Data 3 3 Finally in rate measurement 7 configuration it is the total number of pulses seen at the A input accumulated over each period as specified by the product of the time base x gate interval The range of values occupy the entire 32 bit size from 0 lt value lt OxFFFFFFFF 4 294 967 295 Changing the configuration does not clear these words M odule Channel Status and Programming Error Codes Input Words 3 and 4 Programming Error bit PE If an incomplete incorrect or conflicting set of configuration parameters is sent to the module the PE bit is asserted and an error code is placed in the Programming Error Code word assembly 68416 The module will not enter a normal operational state Bit definitions for the error code are E10 An invalid assembly was chosen for poll consumption 0 105 or 106 are valid E9 The decimal point position is outside of acceptable range ES Counter 0 window ON and OFF values are equal and not zero OR Counter 0 window ON or OFF value greater than OxOOFFFFFF E7 A tie has been connected to an unprogrammed window E6 A configuration was selected that requires the scalar and none was programmed or Multiple scalars were selected E5 The preset is out of range gt OxOOFFFFFF E4 A rollover of zero was programmed though PWM was not selected OR A rollover was programmed and PWM was selected OR Rollover
14. 0 and OFF at 5000 If the ON value is greater than the OFF value the output turns OFF at 2000 and ON at 5000 Effect of ON OFF Value on Output Operation Output remains Energized Output remains Deenergized for 3000 additional counts for 3000 additional counts Output turns ON Output turns OFF Output turns OFF Output turns ON at count of 2000 at count of 5000 at count of 2000 at count of 5000 TurnOff Value gt Turn On Value TurnOn Value gt Turn Off Value Publication 1734 UM 003B EN P August 2005 What This Chapter Contains Before You Begin Install the Module Chapter 2 Read this chapter for information about how to install the modules The 1734 VHSC module is a two module set Module 1 houses the 1734 VHSC functionality while module 2 provides screw terminals necessary to access chassis ground Chas Gnd and common C Module 2 also connects terminal 4 to 5 and terminal 6 to 7 for ease of wiring power to the input device Module 2 is not necessary for VHSC functionality but eases customer wiring Module 2 does not use a node address and it doesn t consume power from the POINTBus To reduce loop area place module 2 adjacent either side to module 1 For Information About How To See Page Before You Begin 2 1 Install the Mounting Base Assembly 2 1 Install the Module 2 4 Install the Removable Terminal Block 2 6 Remove a M ounting Base 2 6 Wire the M odules 2 7 Preventing Electrostatic Discharge This e
15. 2 5k 2 Hz 1 25 k 5 kHz 500 10 kHz 250 20 kHz 125 50 kHz 50 100 kHz 25 Publication 1734 UM 003B EN P August 2005 Scaling the input frequency through the use of a scalar can lessen the decrease in accuracy A scalar value of 1 returns an accurate input frequency if incoming input pulses have a 50 duty cycle Operation of Scalar In the Period Rate mode the scalar lets the incoming pulse train at the Z Gate Reset pin be divided by a user defined number There is one scalar value for each counter Acceptable values for the scalar are 1 2 4 8 16 32 64 and 128 The default value for each scalar is 1 Note that a 0 scalar is equivalent to a 1 The product of the Sample Period times the scalar should be less than 6 71 seconds in order to avoid a zero frequency detect indication 5 MHz sample time 200ns 16 777 216 counts x 200ns x 2 half cycles of Z 6 71 seconds About the M odules 1 7 Continuous Rate Mode The Continuous Rate Mode returns an incoming frequency and a total accumulated count to POINTBus by gating an internal 5 MHz internal clock with an external signal Similar to the Period Rate mode except outputs in this mode are updated continuously This mode determines the frequency and total number of input pulses by counting the number of internal 5 MHz clock pulses over a user specified number of input signal pulses Each output is turned on as soon as the turn on count is reached and turned off as
16. 5 When a tie is connected to a compare window that window must be specified ON value OFF value 0 These windows are always interpreted as counts regardless of the configuration setting and may be computed as follows for frequency modes 5 6 and 7 Period Rate 5 and Continuous Rate counts scalar x 2 5E6 desired_frequency Rate M easurement counts time base sec x gate interval x desired frequency Communicating Real Time Information Very High Speed Counter M odule Input and Output Data 3 11 Safe State Values Configuration Words 20 through 22 When either the host transitions to PROGRAM mode or a communication fault broken network cable occurs the module copies these safe state words counter control output control and PWM value into its real time working buffer The definitions are identical to those described under Real time Output Data with the following exception entering a PWM Safe State value outside of the range 0 9500 results in a Hold Last State to be executed The Very High Speed Counter Module uses several words to communicate real time input and output data as well as non real time module information such as description and revision and configuration Assembly 101 is produced for a polled connection Assembly 102 is produced for a Change Of State COS connection Assemblies 103 104 107 and 108 are by Explicit message only Assemblies 105 and 106 are consumed in a polled connection as dir
17. Click Cancel to return to default values or e Click Apply to save changes you made on any of the dialogs and continue to display the dialog noting that you enable the Apply button when you make changes to any of the dialogs Publication 1734 UM 003B EN P August 2005 gj A 6 Configure Modules in RSLogix 5000 Software Work with the Counter Configuration Dialog Sack contol In Hard Run mode you disable all controls on the Counter Configuration dialog in addition to the enable and disable state for Use the following procedures to complete entries from this dialog After you select Type refer to the table to see what other entries are available in the dialog These If You Select This For Type Enes Are Available Counter Encoder PWM Period Rate Continuous Rate Pulse X1 X2 X4 Rate Measurement Generator Store Count M ode X X Rollover X X Set to Zero Counter Attenuator X X X Frequency Precision X X X Time Base Gate Interval X X Invert Input Z X X X X Scalar X X X Actual Gate Interval Status Offline Publication 1734 UM 003B EN P August 2005 ll Module Properties myAaent 3 1734 HSC24 C 3 1 0 ms Cancel General Connection Module Info Fault Program Action Counter Configuration Output Configuration Type O OO O Store Count Mode Store Count Disabled x IV Filter A Rollover 16777215 IV Filter B M FilterZ Preset 0 TK InvertInputZ Cou
18. Instantiated Instances 2 From the Service Class Instance Attribute Editor Warning dialog click Yes You see the Service Class Instance Attribute Editor dialog 3 From the Service Class Instance Attribute Editor dialog complete these actions referring to the figure a Select the service code b For Recevie Data select Size and Radix c Enter the class instance and attribute d Click Execute to initiate the action e Click Close to finish 22 Service Class Instance Attribute Editor Node 40 a Select the service code from the list S c Enter the class no IA ete Get Single Attribute TZ Sendthe attibute ID attribute here Get Single Attribute d Click Execute to initiate the action b Select the Receive Data size and radix Bute Word 2 bytes Double 4 bytes Decimal Binar Publication 1734 UM 003B EN P August 2005 Assemblies Access Instantiated Instances 5 3 See the figure for an example where you select Instance 101 polled connection 4 Service Class Instance Attribute Editor Node 40 BE a 1734 VHSC24 4 Counter Module 1 Type In the instance number r Execute Transaction Arguments here This Is an exa mple of Slee giles hens eee ET assembly number 102 0x66 2 Instance tribute Value pest ee a The class is always 4 and the E Get Single Attribute i DE attribute ID attribute is always 3 Transmit Data Size Data sent to the device
19. Publication 1734 UM 003B EN P August 2005 W A 8 Configure Modules in RSLogix 5000 Software 9 For Time Base select a value between 10 and 3000 milliseconds in multiples of 10 referring to the table Selections for Period Rate and Rate Measurement For This Value Default Is Select Frequency Precision X1 X 0 0001 X 0 001 X 0 01 X0 1 X1 X10 X 100 Gate M ultiplier 1 1 to 200 Time Base 1000 10 to 3000 in multiples of 10 10 11 12 13 Publication 1734 UM 003B EN P August 2005 Note that the value for Actual Gate Interval that appears when counter type is Rate Measurement and shows the product of Gate Multiplier and Time Base below 3 seconds 3000 milliseconds For Filter select the Frequency which is the value you use to filter A B Z inputs when you check the checkboxes The frequency default and selections are the following e Default is 50 Hz e Selections for Filter include these No Filter 50 kHz 5 kHz 500 Hz 50 Hz Check the checkboxes for the following which use the value you selected for Filter e Filter A e Filter B e Filter Z For Invert Input Z check the checkbox to invert the signal at Z input Configure Modules in RSLogix 5000 Software A 9 14 For Scalar choose one of these el e 2 04 8 e 16 e 32 e 64 e 128 When the value for Scalar is one of the following note that frequency precision lt 1 e 16 e 32 e 64 e 128
20. any associated outputs against their associated presets Frequency is calculated by dividing the accumulated count by the user selected time period and is retumed in the read data Allowable time periods are 10 ms to 3s in 10 ms increments with a default value of 1 s Note that a 0 time period is equivalent to the 1 s default ES e l a M easurement M ode A Input gt Input A B Not Used Input B Z Not Used Input Z Gate Reset Encoder Pulse Generator Time Base 1734 VHSC A Input Pulse Internal Sampling Gate Accumulated Count Frequency Calculated Outputs Updated Here User Selectable Sample Period 10ms to 2s in 10ms increments If Sample Period is 50ms and Count 3 then Frequency 3 50ms 60Hz Pulse Width Modulation PWM Mode The Pulse Width Modulation mode uses the counter to generate a continuous rolling sequence of numbers The real time PWM value written to the module is converted to a window edge so that a variable duty cycle signal can be generated The counter resets to zero based upon the PWM period programmed into the module Any output tied to Window 0 transmits the PWM signal About the M odules 1 9 New Data Indicator A two bit counter C1 and CO is updated every time an event occurs indicating that new data is available in the Stored Accumulated Count words Events are defined as Any active gate transition in any of the Store Count Counter or Encoder m
21. ary count Period Rate M ode Count internal clocks during the On period return a frequency Outputs updated only at the end of the period Continuous Rate M ode Count internal clocks during the On period return a frequency Outputs are updated continuously during the period Rate M easurement M ode Read pulses during the sample period return a frequency PWM Mode pulse width Generate a pulse width modulated signal modulation The operation of the counter and encoder modes is nearly identical The difference between the two modes is in the type of feedback single phase versus two phase for the count direction up or down In encoder mode a transition is expected on the B input for counting to proceed in a direction whereas in counter mode the B input may be left at a static level You select all operating modes by writing appropriate configuration data to the module Counter M ode The counter mode reads incoming pulses and returns a binary number 0 16 777 215max to the POINTBus The counter mode only accepts single phase inputs The module determines the Phase B input state and counts up or down accordingly About the M odules 1 3 Channel A input is used as the counting pulse while channel B is used to determine the direction B High Count Down B Low or floating not connected Count Up The Channel B input may be tied high or low for unidirectional counting or toggled for bidirectional countin
22. ation Phone ___No there is no need to contact me ___ Yes please call me ___ Yes please email me at ___Yes pleasecontactmevia 222222222 Return this form to Rockwell Automation Technical Communications 1 Allen Bradley Dr Mayfield Hts OH 44124 9705 Fax 440 646 3525 Email RADocumentComments ra rockwell com Publication ClG CO521C EN P M ay 2003 PN957782 91 Other Comments PLEASE FASTEN HERE DO NOT STAPLE PLEASE FOLD HERE BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE Allen Bradley ELAEIF DOOGE ROCKWELL ESS las Rockwell Automation NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES 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 Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 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 1734 UM 003B EN P August 2005 PN 957974 42 Supersedes Publication 1734 UM 003A EN P August 2000 2005 Rockwell International Corporation Printed in the U S A
23. click I O Defaults from the top of the dialog completing the entries shown in the figure tr 1734 VHSC247A Counter Module Click the I O Defaults tab to display the default characteristics for this module This dialog shows the input output defaults for the four modes These are Strobe Polled Change of state and Cyclic Publication 1734 UM 003B EN P August 2005 4 10 Configure Your Module 2 From the Counter Module dialog click EDS File from the top of the dialog completing the entries shown in the figure Uke STS USES Click the EDS File tab to display the statistics of the EDS file used to configure this module Click View File to view the actual EDS file Shown at the left DescText PointIO 1734 VHSC247A CreateDate 04 06 2000 CreateTime 07 41 42 ModDate 06 03 S000 ModTime 14 17 Revision 1 1 Device VendCode 1 VendName Allen Bradley Company Inc ProdType 109 A ProdTypeStr Specialty 1 0 You can view the actual ProdCode 14 K i s MajRev 1 Pena EDS file or edit the file Predilanc 1734 VHSC24 A Counter Module Catalog 1734 VHSC247A4 Parans Parami 0 6 PAA OF 24 LE 30 01 Link Path Size Link Path Ox escriptor 8 Dan i Data Type Data Size Counter Configuration Configures the counter s operational mode Available 0 2 1 1 1 0 0 0 0 0 0 Publication 1734 UM 003B EN P August 2005 Chapter 5 What This Chapter Con
24. ct 0 95 if you did the following Selected PWM for Type Unchecked the checkbox for PWM Hold State Configure Modules in RSLogix 5000 Software A 5 3 For the appropriate Output number check the checkboxes for the values in the table Value Description Force Output If checked you turn outputs on if you check Output Enable If unchecked you control the outputs by a compare match or as directed by the PWM settings Output Enable If checked you permit outputs to turn on from one of the these e Force on e Force Output e Compare match e As directed by the PWM settings If unchecked the module turns the associated output OFF Diagnostic Speed If checked you filter at 50 ms short for circuit and open wire diagnostics to prevent trips caused by a noisy environment If unchecked diagnostics respond to a fault condition in less than 8 ms Electronic Fuse Select If checked outputs are disabled upon the detection of a fault short circuit or open wire and the output fault status indicator Fuse Select is latched You achieve recovery from a faulted state if you check Electronic Fuse Select and Output Enable for the output If unchecked a faulted output continues to operate as instructed until the fault is removed In either case Fuse Select is asserted to indicate a fault 4 Complete one of these actions e Click another tab at the top of the dialog or e Click OK which closes the dialog or e
25. ct the type of counter desired 07 06 05 04 03 02 01 00 Zl MD c m Counter 0 Counter Encoder X1 Encoder X2 PWM Encoder X4 Period Rate Continuous Rate S l S SG oO Oo oO a e e o o o gt e e o oj e e o 9 e ojl e ojl e ojej gt Rate M easurement Store Count Disabled Mode 1 store continue Mode 2 store wait resume Mode 3 store reset w ait start Mode 4 store reset start Reserved Reserved RS e e e o o o PE e O oj e e Oo KS O e o e O e Reserved 0 Z input 0 not inverted 1 Z input 1 inverted Very High Speed Counter Module Input and Output Data 3 7 Filter Selection Configuration Word 2 This byte sets the A B Z input filters Filter Selection 07 06 05 04 03 02 01 00 0 ZF BF AF FS 0 10 0 0 No Filter 0 10 0 1 50 kHz 10 us 0 us 1 6 us 0 0 1 0 5 kHz 100 us 0 us 13 2 us 0 1 10 0 500Hz 1 0 ms 0 us 125 us 1 10 0 0 50Hz 10 ms 0 ms 1 25 ms 0 A input not filtered 1 A input filtered 0 B input not filtered 1 B input filtered 0 Z input not filtered 1 Z input filtered Decimal Position Configuration Word 3 This byte changes the significant digits of the frequency or counter display In the frequency modes period rate 5 con
26. d number of input signal pulses At the end of the specified number of pulses the module returns the frequency 0 1 MHz When the frequency is updated both outputs are checked against their associated presets e Period Rate M ode Input A B Not Used 7 Input B Input Z Gate Reset A Not Used Encoder Pulse Generator Scalar 5MHzCIk 1734 VHSC Z Input Pulse 5 MHz Internal Sampling Clock hae i 10 2 Frequency amp Outputs Updated Here Accumulated Count P Assumes symmetrical pulse 50 duty cycle so Period Sample Time On X 2 On amp Off Frequency 1 Period If Count 20 Scalar 1 and Clock Period 1 5 MHz Frequency 1 20 1 X 1 5MHz X2 125 kHz Publication 1734 UM 003B EN P August 2005 1 6 About the Modules As the frequency of the incoming pulse train at the Z Gate Reset terminal increases the number of sampled pulses from the 5MHz clock decreases Since accuracy is related to the number of pulses received over the sample period the accuracy decreases with increasing frequencies at the Gate Reset terminal Refer to the following Scaling table Relationship Betw een Sampled Pulses and Input Frequency Input Frequency at Z Gate Reset Terminal Sample Pulses for 1 2 Cycle of Z Gate Reset Pulse 2 5 Hz 1M 5 Hz 500 k 10 Hz 250 k 20 Hz 125k 50 Hz 50 k 100 Hz 25k 200 Hz 12 5 500 Hz 5k 1k Hz
27. de 105 0x69 Set Get Counter Control Output Control 106 0x6a Set Get PWM Value 107 0x6b Set Get PWM Value Counter Control Output Control 108 0x6c Set Get Counter Configuration Filter Selection Decimal Position Active Output Assembly Time Base or PWM Period Gate Interval Scalar Output 0 Ties Output 1 Ties Rollover Value Preset Value ON Value 1 OFF Value 1 ON Value 2 OFF Value 2 ON Value 3 OFF Value 3 ON Value 4 OFF Value 4 PWM Safe State Value Counter Control SSV Output Control SSV ej e N gt SY SY SY gt e gt Aj ej ej ej e N ej ej re ej DI e N N RL ej N N A A N SY N gt Chapter 6 Troubleshoot with the Indicators Use the Indicators for Each 1734 VHSC module has 7 indicators on the frontplate Use these Troubleshooting indicators for troubleshooting referring to the figures and tables Status Module Status Network Network Status Status Status of Input A Status of Input B Status of Input Z Status of Output 0 Status of Output 1 Ea Indication Probable Cause Module Status off No power applied to device Green Device is operating normally Flashing Green Device needs commissioning due to configuration missing incomplete or incorrect Flashing Red Recoverable fault is present Red Unrecoverable fault may
28. e What This Appendix Read this appendix for information about how to configure your Contains modules in RSLogix 5000 software including how to complete entries on these dialogs e Fault Program Action e Counter Configuration e Output Configuration Understand Data Before you configure your modules note the following about Data Connection and formats and Connection types Communication Formats e Data format type is Integer e Connection types are as follows e Data e Listen Only Communication formats for adapters are as follows e Listen Only Rack Optimization e None e Rack Optimization Choices for formats for the module depend on the Communication format for the adapter See the table for a listing of possible module Connection formats based on adapter Communication formats Adapter Communication Formats Possible Module Connection Formats Listen Only Rack Optimization Data default Listen Only None Data default Listen Only Rack Optimization Data default Listen Only Publication 1734 UM 003B EN P August 2005 A 2 Configure Modules in RSLogix 5000 Software When you change Connection and Data Format note the following e You do not delete the existing module e You do not create a new module e You bring forward all possible configuration data for the new setting e Configuration data that you cannot bring forward sets to the default value Once you apply new
29. e to choose a j 1756 DNB A the scanner You can also E NETON samada click and drag the scanner ai Oe name onto the network DATU IBLCFCIDS Dees Make sure you choose the IE 1784 PCDS Scanner 1784 PCID DeviceNet Inter 1734 ADN POINT 1 0 E 1784 PCIDS DeviceNet Se 9 1788 CN2DN Linking Devic Scanner a g 1794 4DN DeviceNet Flex 9 Modular DSA si DeviceNet to SCANport pA al i gt Add I O Modules to Your Netw ork After you add the communication device you must add the POINT I O modules connected to the scanner on the POINTBus Use these procedures 1 From the DeviceNet RSNetWorx for DeviceNet dialog click next to Specialty I O module to expand the selection 2 From the DeviceNet RSNetWorx for DeviceNet dialog to choose a module do one of the following as shown in the figure e Double click the catalog number to choose the module e Click and drag the module name onto the network Publication 1734 UM 003B EN P August 2005 1 Click here to expand the list of Specialty modules 2 Double click the catalog number to choose the module You can also click and drag the module name onto the network Configure Your Module 4 3 The out of the box node setting for 1734 modules is 63 You can change the setting by using the node commissioning tool The node commissioning tool is available either online or offline If you commission a node online you must power IMPORTANT IMPORTANT down your sys
30. ected by parameter 4 Data may be read get or written set using an Explicit Message For example to read the Present Channel Data assembly 10149 6516 can be requested The following table shows the words which can be exchanged Instances Services Field Bytes 101 0x65 Get Present Channel Data 4 Status 2 102 0x66 Get Stored Channel Data 4 Status 2 103 0x67 Get Present Channel Data 4 Stored Channel Data 4 Status 2 104 0x68 Get Programming Error Code 2 105 0x69 Set Get Counter Control 1 Output Control 1 106 0x6a Set Get PWM Value 2 107 0x6b Set Get PWM Value 2 Counter Control 1 Output Control 1 Publication 1734 UM 003B EN P August 2000 3 12 Very High Speed Counter M odule Input and Output Data Publication 1734 UM 003B EN P August 2000 108 0x6c Set Get Counter Configuration Filter Selection Decimal Position Active Output Assembly Time Base or PWM Period Gate Interval Scalar Output 0 Ties Output 1 Ties Rollover Value Preset Value ON Value 1 OFF Value 1 ON Value 2 OFF Value 2 ON Value 3 OFF Value 3 ON Value 4 OFF Value 4 PWM Safe State Value Counter Control SSV Output Control SSV ej e N Oe ej e N ej ej UI e What This Chapter Contains Configuration Overview Chapter 4 Con
31. ee the table for a summary of the major changes in this manual Chapter Change Preface Update of list of publications Indication that for specifications and safety approval information refer to the installation instructions 2 Addition of Before You Begin section Addition of attention and warning statements AppendixA Update on how to configure modules in RSLogix 5000 software Change Bars We marked with change bars as shown with this paragraph the areas in this manual that differ from previous editions and indicate the addition of new or revised information Publication 1734 UM 003B EN P August 2005 Summary of Changes 2 Notes Publication 1734 UM 003B EN P August 2005 Preface About the Modules Install the Modules Input and Output Data Table of Contents Preface Purpose of This Manual P 1 Who Should Use This Manual P 1 Related Products and Documentation P 1 1 BS 00 N16 cs nn eg ar am ee cr AAA AN P 3 Chapter 1 What This Chapter Contains 1 1 Operating Modes 5 aici urs whe eh eee OS SEG aS 1 2 Counter Mode bea ee ye AG 1 2 Encoder MOGES 545 26 a4 cag eee KE Re 1 3 Period Rate Mode 1 5 Operation of Scalar 1 6 Rate Measurement Mode 1 7 New Data Indicator 1 8 Default Configuration
32. essible 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 See NEMA Standards publication 250 and IEC publication 60529 as applicable for explanations of the degrees of protection provided by different types of enclosure Also see the appropriate sections in this publication as well as the Allen Bradley publication 1770 4 1 Industrial Automation Wiring and Grounding Guidelines for additional installation requirements pertaining to this equipment Use these Series C modules with the following e ControlNet adapters with RSLogix 5000 software version 11 or higher e DeviceNet adapters e EtherNet IP adapters with RSLogix 5000 software version 11 or higher e PROFIBUS adapters Publication 1734 UM 003B EN P August 2005 Install the M odule 2 3 Install the Mounti ng Base The wiring base assembly 1734 TB or 1734 TBS consists of a Assembl mounting base cat no 1734 MB and a removable terminal block y cat no 1734 RTB or 1734 RTBS You can install the assembly or just the mounting base To install the mounting base and wiring base assembly on the DIN rail proceed as follows POINT I O is grounded through the DIN rail to chassis ground Use zinc plated yellow chromated steel DIN rail to assure proper grounding The use of DIN rail materials for examp
33. ferenced to the base WARNING When you insert or remove the module while backplane poweris 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 Install the M odule 2 5 1 Using a bladed screwdriver rotate the keyswitch on the mounting base clockwise until the number required for the type of module you are installing aligns with the notch in the base 1734 VHSC24 Position 2 1734 VHSC5 Position 2 Turn the keyswitch to align the number with the notch Notch sition 3 shown fine 44009 2 Make certain the DIN rail locking screw is in the horizontal position noting that you cannot insert the module if you unlock the locking mechanism Make sure the DIN rail locking screw is in the horizontal position 44010 3 Insert the module straight down into the mounting base and press to secure The module locks into place Publication 1734 UM 003B EN P August 2005 2 6 Install the Module Install the Removable A removable terminal block comes with your mounting base assembly Pull up on the RTB handle to remove and replace as Terminal Block necessary without removing any of the w
34. figure Your Module This chapter describes how to configure your Very High Speed Counter modules with RSNetWorx For More Information About SeePage Configuration Overview 4 1 Add the Adapter to Your Netw ork 4 1 Add 1 0 M odules to Your N etw ork 4 2 Set the Counter s Parameters 4 5 Check 1 0 Status and View the EDS File 4 9 Use RSNetWorx for DeviceNet software to configure your module You can configure the module while itis online or offline This chapter shows configuration in the online mode Configuration dialogs appear similar in both modes The primary difference is that if you make changes offline you must go online before the configuration changes take effect Add the Adapter to Your Netw ork Follow these steps to add an adapter to your network 1 Start the RSNetWorx for DeviceNet software 2 Add the communication device as shown in the figure where we chose a 1770 KFD RS232 Interface IMPORTANT The scanner must always exist on the DeviceNet network at Node 00 Publication 1734 UM 003B EN P August 2005 4 2 Configure Your Module DeviceNet RSNetWorx for DeviceNet File Edit View Network Device Tools Help als ula swel eeik Elt mZ Hardware a B DeviceNet a j TO Pye The scanner appears 1 Click here to expand the list BO AC Dive pp of communication adapters pee Communication Adapter on the network i E 1747 SDN Scanner Module 2 Double click her
35. g Ee e i a Mode A Input Input A B Direction Input B Z Store Count Input Z 7 Gate Reset Single Phase Pulse Generator 1734 VHSC Count Up Count Down A Input B Input Outputs Count Updated Continuously gt C Encoder M odes The encoder mode reads incoming pulses and returns a binary number 0 16 777 215max to the POINTBus The encoder mode only accepts two phase quadrature inputs The module senses the relationship between the 2 phases and counts up or down accordingly There are two basic encoder types absolute and incremental A single output incremental encoder is called a tachometer encoder A dual channel incremental encoder with one channel leading the other by 90 is called a quadrature encoder A system using a quadrature encoder may include an optional zero pulse or index serving as a reference mark for system reset The principal disadvantage of a system using incremental encoders is that a power interruption causes the loss of position reference so a system must be reinitialized or returned to a known zero position Publication 1734 UM 003B EN P August 2005 1 4 About the Modules Publication 1734 UM 003B EN P August 2005 Absolute encoders typically have higher speed requirements 200 KHz typical for motion control applications An absolute encoder has a unique code associated with each position so the exact position is always known even if
36. g and zero reverts to 1 to prevent a divide by zero Active Output Assembly Configuration Word 4 This byte permits selection of either assembly 105 0x69 Counter Output Control or 106 0x6A PWM Value for poll consumption Entering a zero causes the default assembly 105 to be selected Time Base Pulse Width Modulation PWM Period Configuration Word 5 This word sets the fundamental time base for the counter Its resolution is in milliseconds with minimum 10 ms intervals an interval of 10 milliseconds is a value of 10 1 second is 1000 The maximum value that may be programmed is 3 seconds 3000 The time base must be entered when the PWM 3 and rate measurement 7 configurations are used Gate Interval Configuration Word 6 This byte sets the counter s gate interval using the time base setting as its time unit Its resolution is determined by the time base The actual gate interval is the product of the time base and the gate interval for example 50 ms gate interval may be produced with a time base of 10 and a gate interval of 5 ora time base of 50 and a gate interval of 1 The maximum value of the product of time base x gate interval is 3 seconds The gate interval must be entered when the PWM 3 and rate measurement 7 configurations are used The maximum value is 200 Very High Speed Counter M odule Input and Output Data 3 9 Scalar Configuration Word 7 This byte scales the Z signal in the period rate 5
37. illiseconds to determine ZF Output Data Very High Speed Counter M odule Input and Output Data 3 5 Counter Control Word 1 VR Value Reset of stored accumulated count The transition of this bit from 0 to 1 clears the stored accumulated count word CP Counter Preset The transition of this bit from 0 to 1 sets the counter to the value specified by the Preset words Outputs are adjusted according to the window compare values CR Counter Reset The transition of this bit from 0 to 1 clears the counter Outputs are adjusted according to the window com pare values Output Control Word 2 Diagnostic speed DS When this bit is set 1 the short circuit and open wire diagnostics are filtered 50 ms to prevent nuisance trips caused by noisy environments When the bit is reset 0 diagnostics responds to a fault condition in less than 8 ms Bits 7 and 3 report output 1 and 0 respectively Electronic fuse Select ES When this bit is set 1 outputs are disabled upon the detection of a fault short circuit or open wire and the output fault status indicator FS is latched Recovery from a faulted state is achieved by sending ES 0 and OE 1 for the afflicted output When ES equals zero a faulted output continues to operate as instructed until the fault is removed In either case FS is asserted to indicate a fault Bits 6 and 2 report output 1 and 0 respectively Output Enable OE When this bit is set 1 outputs are permit
38. iring To reinsert the removable terminal block use this procedure 1 Insert the RTB end opposite the handle into the base unit This end has a curved section that engages with the mounting base ne gt Si Hook the RTB end into the mounting base end 7 and rotate until it locks into place 44011 2 Rotate the terminal block into the mounting base until it locks itself in place 3 Ifan I O module is installed snap the RTB handle into place on the module 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 Remove aM ounting Base To remove a mounting base remove any installed module and the removable terminal block if wired 1 Unlatch the RTB handle on the I O module Publication 1734 UM 003B EN P August 2005 Install the M odule 2 7 2 Pull on the RTB handle to remove the removable terminal block 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 3 Press in on the module lock on the top of the module and pull up on the I O module to remove
39. le aluminum plastic that can corrode oxidize or are poor conductors can result in improper or intermittent grounding Secure DIN rail to mounting surface approximately every 200 mm 7 8 inches 1 Position the mounting base and wiring base assembly vertically above the installed units adapter power supply or existing module 2 Slide the mounting base down so that the interlocking side pieces engage the adjacent module or adapter Slide in Writable Label Module Locking Mechanism Insertable 1 0 Module Module Wiring Diagram Mechanical Keying orange DIN Rail Locking Sc orange Interlocking Side Pieces Mounting Base 41825 Publication 1734 UM 003B EN P August 2005 2 4 Install the Module Install the Module Publication 1734 UM 003B EN P August 2005 3 Press firmly to seat the mounting base on the DIN rail The mounting base snaps into place ya VAIN 4 Vy 44013 Do not discard the end cap shipped with an adapter or communication interface Use this end cap to cover the exposed interconnections on the last mounting base on the DIN rail Failure to do so could result in equipment damage or injury from electric shock Install the module before or after base installation Make sure that you correctly key the mounting base before installing the module into the mounting base In addition make sure you position the mounting base locking screw horizontal as re
40. n this 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 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 Identifies information that is critical for successful IMPORTANT application and understanding of the product Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you e identify a hazard e avoid a hazard e recognize the consequence ATTENTION a l TETA Labels may be located on or inside the equipment for example drive or motor to alert people that dangerous voltage may be present TETTA Labels may be located on or inside the equipment for example drive or motor to alert people that surfaces may be dangerous temperatures P POINT I O POINTBus and RSLogix 5000 are trademarks of Rockwell Automation ControlNet is a trademark of Contro Net International Ltd DeviceNet is a trademark of Open DeviceNet Vendor Association Inc Summary of Changes Summary of Changes This publication contains new and revised information not in the last release New and Revised Information S
41. ng e Customer digital I O interface e Counter ASIC e Microprocessor The module accepts feedback from the following e Encoders either single ended or differential e Pulse generators e Mechanical limit switches e Frequencies up to 1 MHz A filter is available with the following settings e 50 Hz e 500 Hz e 5 kHz e 50 kHz Turn the filter off to achieve the fastest counting rate The input voltage range is 5Vdc VHSC5 or 15 24V dc VHSC24 The module returns the count or frequency in the form of a 24 bit binary number 0 16 777 215 expressed in a 32 bit long word Each counter has a user selectable preset and rollover value associated with it The module has 2 outputs that access customer power from the POINTBus to facilitate various output device voltage requirements Publication 1734 UM 003B EN P August 2005 1 2 About the Modules Operating Modes Publication 1734 UM 003B EN P August 2005 The outputs are rated to source 0 5A at 10 to 28 8V dc The output may be tied to an input This lets you cascade counters of multiple 1734 VHSC modules The counter has 4 user selectable On Off values windows associated with it Tie either output to any or all of the window signals The modules operate in the modes shown in the table Mode Description Counter M ode Read read incoming single phase pulses return a binary count Encoder M ode Read incoming two phase quadrature pulses return a bin
42. nter Attenuator 1 f Scalar 0 z Frequency Precision 7 Gate Multiplier 0 Time Base 0 ms Help Configure Modules in RSLogix 5000 Software A 7 1 For Type select one of these to set the Counter Configuration mode e Counter default e Encoder X1 Encoder X2 or Encoder X4 e Pulse Width Modulation PWM e Period Rate e Continuous Rate e Rate Measurement e Pulse Generator 2 Refer to the table to see what entries to complete based on your selection for Type 3 For Store Count Mode select an option to determine which of the following modules you use for operating the Z Gate Reset Terminal e Store Count Disabled default e Store Continue e Store Wait Resume e Store Reset Wait Start e Store Reset Start 4 For Rollover select a value greater than the value for Preset e Default is 16777215 e Select a value from 1 to 16777216 5 For Preset select a value smaller than the value for Rollover e Default is 0 e Select a value from 0 to 16777215 6 For Counter Attenuator select a value from 0 to 255 to attenuate the counter display noting that the default is 1 7 For Frequency Precision select a value per the Selections for Period Rate and Rate Measurement table to multiply the frequency by the factor selected 8 For Gate Multiplier select a value so that the product of Gate Multiplier and Time Base does not exceed 3 seconds 3000 milliseconds referring to the table
43. odes The end of the gate sample period in either the Period Rate Continuous Rate or PWM modes The end of the programmed sample period in the Rate Measurement mode To use these bits reliably acquisition of data from the counter module must occur faster than the events which cause C1 C0 to increment When C1 C0 is updated a change of state COS message can be sent Default Configuration The module default configuration on startup are the following e Counter mode e 50 Hz filter on A B and Z e No time base e Active Output Assembly 105 e Rollover OxOOFFFFFF e Preset 0 e No scalar e Output 0 untied e Output 1 untied e Window comparators 0 e Counter Control Safe State 0 e Output Control Safe State 0 To modify the default settings to those required for your application refer to the appropriate section of this publication Publication 1734 UM 003B EN P August 2005 1 10 About the M odules Operati ng M ode Features See the table for a summary of features active in each mode Operating Feature Counter Encoder Period Continuous Rate PWM Up Down X1 X2 amp X4 Rate Rate Measurement Preset Y Y N N N N Rollover Y Y N N N N Software Reset Y Y Y Y Y Y Store Count Y Y N N N N Z Gate Reset 4 modes Scale Input Count at N N Y Y N N Z Gate Reset Z Gate Reset Invert Bit Y Y Y Y N N Enable Force Outputs Y Y Y Y Y Y Assign Out
44. put and Output Data Chapter 3 Configure Your M odule Chapter 4 Access Instantiated Instances Chapter 5 Troubleshoot with the Indicators Chapter 6 Who Should Use This You must be able to use RSNetWorx software or similar configuration Manual software to set up and calibrate these modules You must have the capability to download and use Electronic Data Sheet files We assume you know how to do this in this manual If you do not refer to your software user manuals or online help before attempting to use these modules Publication 1734 UM 003B EN P August 2005 Preface 2 Related Products and For specification safety approval and other information refer to the Documentation following e Publication Number 1734 IN003 5V and 24V Very High speed Counter Modules Installation Instructions For related 1734 products and documentation see the table Description Cat No Publication Analog Input M odules 1734 IE2C 1734 IN 027 Installation Instructions 173401E2V Analog Output M odules 1734 0E2C 1734 IN 002 Installation Instructions 1734 0E2V DeviceNet Communication Interface 1734 PDN 1734 IN057 Installation Instructions Field Potential Distributor 1734 FPD 1734 IN059 Installation Instructions POINT I O 24V dc Expansion Power Supply 1734 EP24DC 1734 IN058 Installation Instructions POINT I O Selection Guide 1734 series 1734 SG001 Protected Output M odule s 1734 OB2E 1734 IN056 In
45. puts Y Y Y Y Y Y Operate Outputs Y Y Y Y Y Y Based On Count Count Count Count Count PWM Value Sample Period N N N N Y Y Operating M ode Features The Z Gate Reset Terminal operates in one of four modes when the Store Count feature is in use The four figures below detail the operation in each mode Store Count Mode 1 Store Continue In mode 1 the rising edge of a pulse input on the Z Gate Reset terminal causes the current counter value to be read and stored in the Read Data file The counter continues counting The stored count is available in the Stored Accumulated Count word The stored count information remains until it is overwritten with new data Store Continue Read Store Count and Continue Counting Publication 1734 UM 003B EN P August 2005 About the M odules 1 11 Store Count Mode 2 Store Wait Resume In mode 2 the rising edge of a pulse input on the Z Gate Reset terminal reads and stores the current counter value in the Stored Accumulated Count word and inhibit counting while the Z Gate Reset terminal is high Counting resumes on the falling edge of the pulse at the Z Gate Reset terminal The stored count information remains until it is overwritten with new data Store Wait Resume Stop Counting N Store Count Resume Counting N IZ Store Count M ode 3 Store Reset W ait Start In mode 3 the rising edge of a pulse input on the Z Gate Reset terminal stops counting reads and store
46. quipment is sensitive to electrostatic discharge A which can cause internal damage and affect normal operation Follow these guidelines when you handle this equipment e Touch a grounded object to discharge potential static e Wear an approved grounding wriststrap e Do not touch connectors or pins on component boards e Do not touch circuit components inside the equipment e If available use a static safe workstation e When not in use store the equipment in appropriate static safe packaging Publication 1734 UM 003B EN P August 2005 2 2 Install the Module ATTENTION A Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment in overvoltage Category II applications as defined in IEC publication 60664 1 at altitudes up to 2000 meters without derating This equipment is considered Group 1 Class A industrial equipment according to IEC CISPR Publication 11 Without appropriate precautions there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance 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 interior of the enclosure must be acc
47. r Configuration Word 8 3 7 Preset Configuration Word 9 3 7 Safe State Values Configuration Word 10 3 8 Communicate Real Time and Nonreal Time Information 3 8 Chapter 4 What This Chapter Contains 4 1 Configuration Overview 4 3 5 waeareos ee SAG WG hs 4 1 Add the Adapter to Your Network 4 1 Add I O Modules to Your Network 4 2 Set Counter Parameters 4 4 Check I O Status and View Edit the EDS File 4 6 Chapter 5 What This Chapter Contains 5 1 Use Instantiated Instances 5 1 Assemblies erra 5 3 Chapter 6 Use the Indicators for Troubleshooting 6 1 Appendix A What This Appendix ContainS A 1 Understand Data Connection and Communication Formats A 1 Configure Your Module A 3 Usethe Help Buttons snese nu Anna OR NA Ana A 3 Work with the Fault Program Action Dialog A 4 Work with the Counter Configuration Dialog A 6 Work with the Output Configuration Dialog A 10 Publication 1734 UM 003B EN P August 2005 Preface Purpose of This Manual Read this manual for information about how to install configure and troubleshoot your module For This Information See About the M odules Chapter 1 Install the M odules Chapter 2 In
48. r Configuration e Output Configuration From the Fault Program Action Counter Configuration and Output Configuration dialogs click Help at the bottom of the dialog for information about how to complete entries on the dialogs From a warning dialog click Help at the bottom of the dialog to get information about that specific error Publication 1734 UM 003B EN P August 2005 A 4 Configure Modules in RSLogix 5000 Software Work with the Fault Program Action Dialog Publication 1734 UM 003B EN P August 2005 Use these procedures to complete the entries from this dialog which is not available with a Listen Only connection E Module Properties myAaent 3 1734 HSC24 C 3 1 Counter Preset Value Reset PWM Hold Last State Value 0 00 Output Force Output Diagnostic Electronic Put Output Enable Speed Fuse Select Sos FC HJO C O CC C E Status Offline Cancel Help 1 Check the checkboxes as shown in the table Check this To Checkbox Counter Reset Reset the counter Counter Preset Set the value of the counter as specified by the preset words Value Reset Reset the value of the accumulated stored count 2 If you selected PWM for Type proceed as follows otherwise see the next step a For PWM Hold State make a selection as follows Check the checkbox to disable the PWM Value field Uncheck the checkbox to set the PWM Value field b For Value sele
49. r a change in the input state Currently the Counter Encoder M odes do not have Zero Frequency Detection the A and B inputs are time independent only looking for input edge changes to increment decrement the count value The Period Rate and Continuous Rate modes do have Zero Frequency Detection since the Z input is monitored for Zero Frequency in Firmware A and B inputs are not used and not monitored The Rate Measurement mode inherently has Zero Frequency Detection since no A pulses in any sample period are 0Hz B and Z inputs are not used and not monitored Publication 1734 UM 003B EN P August 2005 Preface 4 Publication 1734 UM 003B EN P August 2005 Operational Mode Zero Frequency Detection Input Monitored Counter No None Encoder No None Period Rate Yes Z Only Rate M easurement Y A Only What This Chapter Contains Module Description and Features Chapter l About the Modules Read this chapter to learn about types features and capabilities of the encoder counter modules The modules install into the POINT I O terminal base 1734 TB or 1734 TBS and interface with the Point I O DeviceNet Pass through 1734 PDN or the Point I O DeviceNet Adapter 1734 ADN A module serves as a signal conditioner function block and counter between the customer process signals on the terminal base and the POINTBus containing the command information The main functional blocks are the followi
50. re Window T2 Tie Output to 3 Compare Window T3 Tie Output to 4 Compare Window Publication 1734 UM 003B EN P August 2000 3 10 Very High Speed Counter M odule Input and Output Data Publication 1734 UM 003B EN P August 2000 Rollover Configuration Word 10 This long word sets the number of counts the counter accumulates before rolling over For example a value of 1000 produces a count sequence of 998 999 0 1 2 while incrementing or 2 1 0 999 998 while decrementing Rollover is a 32 bit number with a useable range of 1 lt value lt 0x01000000 16 777 216 In PWM 3 configuration this value should be zero in count 0 x1 encoder 1 x2 encoder 2 and x4 encoder 4 configurations it should be specified to some non zero value and in period rate 5 continuous rate 6 and rate measurement 7 configurations is a don t care Preset Configuration Word 11 This long word sets the preset value the counter is loaded with when a Counter Preset CP command is issued Preset is a 32 bit number with a range of 0 lt value lt OxOOFFFFFF 16 777 215 Counter ON and OFF Windows Configuration Words 12 to 19 These long words program the four compare window s ON and OFF values The first compare window for each counter is used in PWM 3 configuration and when PWM is programmed fora channel the associated compare window should remain at 0 The range of each entry is 0 lt value lt OxOOFFFFFF 16 777 21
51. require device replacement Flashing Device is in self test Red Green Publication 1734 UM 003B EN P August 2005 6 2 Troubleshoot with the Indicators Publication 1734 UM 003B EN P August 2005 Indication Probable Cause Netw ork Status Off Device is not online Device has not completed dup_MAC_id test Device not pow ered check module status indicator Flashing Green Device is online but has no connections in the established state Green Device is online and has connections in the established State Flashing Red One or more I O connections are in timed out state Red Critical link failure is present failed communication device Device detected error that prevents it communicating on the network Flashing Communication faulted device the device detected a Red Green network access error and is in communication faulted state Device received and accepted an Identify Communication Faulted Request long protocol message Indication Probable Cause Input Status Off Input is inactive Yellow Input is active and under control Indication Probable Cause Output Status Off Output is inactive Yellow Output is active and under control Flashing Yellow Output is toggling Flashing Red Output is faulted open short or no output power cee Output is toggling and faulted possibly open Red Yellow Appendix A Configure Modules in RSLogix 5000 Softwar
52. s Parameters 1 Right click the module 2 Click Properties to configure your adapter Configure Your Module 4 5 After adding the module to the network you must configure the modules for use Use this procedure IMPORTANT you download to This procedure shows configuration in the online mode Changes set in this mode take effect when the individual module 1 From the DeviceNet RSNetWorx for DeviceNet dialog complete the actions shown in the figure M44737 5 1734 VYHSC5 A 1734 IJ a Counter Module Counter 1 E 4 amp Cut Cx Copy Ctrl C 2 Paste Chey Delete Del Upload from Device Download to Device Class Instance Editor gt Properties You can also left click the module or name and the property dialog appears You see a counter module dialog with a series of tabs at the top of the dialog See the tabs in the figure These dialogs are for the 1734 VHSC24 module Use identical dialogs for the 1734 VHSC5 module EX 1734 YHSC247A Counter Module General Device Parameters 1 0 Defaults EDS File 2 1734VHSC24 A Counter Module Name Description Address Device Identity Primary Vendor Device Product Catalog Revision 40 These are the tabs you click to view the options Rockwell Automation Allen Bradley 1 Specialy O09 I734VHSC24 A Counter Module 14 pavis o for Cancel Apply Help
53. s 0 Rollover 16777215 Preset 100 Compare Window 1 ON Value 0 xl Status HD ProgrammingEnor O Publication 1734 UM 003B EN P August 2005 4 8 Configure Your Module 4 To configure your module from the Device Parameters dialog select Configuration and complete the actions in the figure EC 1734 YHSC247A Counter Module HD General Device Parameters 1 0 Defaults EDS File To configure your module Upload From Device select Configuration and Restore Defaut Values Download To Device modify the parameters as desired for your application Start Monitor Current Value Z 0 A B Z Input Filter 120 When complete download to AN Decimal Position 0 your module by clicking the 4 Active Qutput Assembly 0 Download to Device button 5 Time Base or PWM Period 0 6 Gate Interval 0 You can download each 7 aaa change as you make it using 8 Output 0 Ties 0 uc d d Il 9 Output 1 Ties 0 Single or download all your 10 Rollover 16777215 11 Preset 100 changes using All Compare Window 1 ON Value 0 fl Click here when finished r o oa aw tee Publication 1734 UM 003B EN P August 2005 Check 1 0 Status and View the EDS File Configure Your Module 4 9 Use this procedure to complete the entries on the dialogs you display by clicking the appropriate tab for I O Defaults and EDS File 1 From the Counter Module screen
54. s the current counter value in the Stored Accumulated Count word and resets the counter to zero The counter does not count while the input pulse on the Z Gate Reset terminal is high Counting resumes from zero on the falling edge of the pulse at the Gate Reset terminal The stored count information remains until it is overwritten with new data Store Reset Wait Start Counter has stopped Counting Stop Count Store SS Start Counting and Reset to zero E from zero Store Count M ode 4 Store Reset Start In mode 4 the rising edge of a pulse input on the Z Gate Reset terminal stores the current counter value in the Stored Accumulated Count word and reset the counter to zero The counter continues counting while the Z Gate Reset terminal is high The stored count information remains until it is overwritten with new data Publication 1734 UM 003B EN P August 2005 1 12 About the Modules Store Reset Start Start Counting Store Count N and Reset to zero Continue Counting ah Output Control To connect an output to a compare window you could program the module accordingly e Tie Output 0 to Window 0 e Program Window 0 ON Value to 2000 e Program Window 0 OFF Value to 5000 ON OFF Operation of Output 0 Output remains energized for 3000 additional counts N Output turns ON at count value of 2000 Output turns OFF at count value of 5000 If the OFF value is greater than the ON value the output turns ON at 200
55. soon as the turn off count is reached As the internal 5 MHz clock is counted the outputs dynamically track the 5 MHz count axe e n usin M ode A Not Used Input A B Not Used Input B Z Input Z Gate Reset Encoder Pulse Generator Scalar 5 MHzClk 1734 VHSC Z Input Pulse F 5 MHz Internal Ee Here Sampling Clock Accumulated Count Ge Updated Ge Assumes symmetrical pulse 50 duty cycle so Period Sample Time On X 2 On amp Off Frequency 1 Period If Count 20 Scalar 1 and Clock Period 1 5 MHz Frequency 1 20 1 X 1 5MHz X2 125 kHz As the frequency of the incoming pulse train at the Z Gate Reset terminal increases the number of sampled pulses from the 5 MHz clock decreases Since accuracy is related to the number of pulses received over the sample period the accuracy decreases with increasing frequencies at the Gate Reset terminal Refer to the Operation of Scalar information and table in the Period Rate Mode Publication 1734 UM 003B EN P August 2005 1 8 About the Modules Publication 1734 UM 003B EN P August 2005 Rate Measurement Mode The Rate Measurement mode determines the frequency and total number of input pulses over a user specified sample period At the end of the interval the module returns a value representing the sampled number of pulses and a value indicating the incoming frequency When you update the count and frequency you check
56. stallation Instructions 1734 OB4E 1734 OB8E Relay Output M odules 1734 OW 2 1734 IN055 Installation Instructions 1734 0W 4 Sink Input M odules 1734 IB2 1734 IN051 Installation Instructions 1734 1B4 1734 1B8 Source Output M odules 1734 1V2 1734 IN 052 Installation Instructions 1734 IV4 1734 IV8 Wiring Base Assembly 1734 TB 1734 IN511 Installation Instructions 1734 TBS Wiring Base Assembly 1734 TB3 1734 IN 013 Installation Instructions 1734 TB35 Publication 1734 UM 003B EN P August 2005 Preface 3 Definitions The following define the intended operation of the module Term Definition Lead Breakage Typically requires a shunt resistor across the load to detect 3 levels of current input states e Open Wire Off Device e Off Wire OK Device Off e On Wire OK Device On This method does not check the input against a time base only that the device wiring current loop is intact Missing Pulse Typically uses an input pulse to reset a watchdog timer fixed or programmable HW This method does detect Lead Breakage since a broken wire will time out the watchdog Zero Frequency Typically uses an input pulse to calculate an input frequency and verify it is above an error threshold This method does detect Lead Breakage since a broken wire will generate a OHz frequency Missing Pulse or Zero Frequency will also detect a customer device stuck high or low since the counter is monitoring fo
57. tains Use Instantiated Instances Access Instantiated Instances In this chapter you learn how to access imbedded Instantiated Instances assemblies in the software The Very High Speed Counter Module uses several words to communicate real time input and output data as well as non real time module information such as description and revision and configuration These words have been preprogrammed into Instantiated Instances To use Instantiated Instances follow these procedures 1 Click the module to select the Class Instance Editor m Click the module to select mereg A R 7 the Class Instance Editor A 01 Cop ChE 43 63 17341K A Counter Module 1734VHSC24 A Counter Modu 1734VHSC5 A Count lt a Kar Graph an Execute the Class Instance Editor tool for Ihe selected device Onine NotBrowsng 5 You see the Service Class Instance Attribute Editor Warning dialog Service Class Instance Attribute Editor x WARNING This editor provides direct access to the i i device using the native DeviceNet object addressing CI l ck Yes w hen th IS model Therefore there are no names labels or help dialog appears prompts to assist you in identifying retrieving and or modifying any device data You assume full responsibility for understanding the impact of your requested action on the device Do you want to continue Publication 1734 UM 003B EN P August 2005 5 2 Access
58. ted to turn on from either a force on FO a compare match or as directed by the PWM settings When OE equals zero the module turns the associated output OFF Bits 5 and 1 represent outputs 1 and 0 respectively Force Output FO When this bit is set to 1 outputs are turned on if OE is 1 When FO equals zero outputs may then be controlled by a compare match or as directed by the PWM settings Bits 4 and 0 represent outputs 1 and 0 respectively Publication 1734 UM 003B EN P August 2000 3 6 Very High Speed Counter M odule Input and Output Data Configuration Data Publication 1734 UM 003B EN P August 2000 Pulse Width Modulation PWM Value Output Word 3 When the module is programmed for a PWM 3 configuration the time base is enabled the counter rollover which is defined as the 1st ON and 1st OFF value for the respective channel is used Ties can be used to direct the PWM signal to any or both outputs The range of PWM values is 0 lt value lt 9500 decimal 0 00 lt value lt 95 00 Entering a value below 0 results in a PWM of 0 a value greater than 9500 results in a PWM of 95 00 The actual duty cycle observed at the output depends on the turn on and tum off times of the MOSFET the energy storage capability of the cable load and the resistance from output to return The following represents the configuration data used by the 1734 VHSC24 module Counter Configuration Configuration Word 1 Use this byte to sele
59. tem before the change takes place lt DeviceNet RSNetWorx for DeviceNet as Halse eak tlt ml ae BEE File Edt View Network Device Tools Help BP DeviceNet EG Category HQ AC Drive H Barcode Scanner E Communication Adapter HD DeviceNet to SCANport S Dodge EZLINK General Purpose Discrete 1 0 ID Genetic Device Human Machine Interface Hardware i T i f 01 40 42 wW 63 1734 VHSC24 1734 YHSCS A 1734 IK A Counter Module Counter Module ME Counter Module Specialty 1 0 173443 A Counter Module g 1734VHSC5 A B Vendor Rockwell Automation Allen Bradley sf f M 4 gt i M Graph Spreadsheet Master Sk of Online Not Browsing D Publication 1734 UM 003B EN P August 2005 44 Configure Your Module 3 From the DeviceNet RSNetWorx for DeviceNet dialog complete the actions shown in the figure MEE 1 Go to the pulldown Tools Select Node Commissioning 2 Click Browse 3 Select the module to change sB rarose ri 4 The node commissioning 6 1788 CN2DN Linking Devic e a Dera ran dialog returns It displays the A node number and data rate 7 DeviceType HI D ae Maa iai 5 Change the node number and TTA ana Mae ai Apply The dialog then identifies the new setting 6 Click Close to continue Publication 1734 UM 003B EN P August 2005 Setthe Counter
60. terval 3 8 setting the preset value 3 10 stored accumulated channel data 3 2 V viewing EDS files 4 6 W wiring base assembly 2 1 Z Z gate reset terminal modes of operation 1 10 Z gate reset terminal operation 1 10 How Are We Doing Your comments on our technical publications will help us serve you better in the future Thank you for taking the time to provide us feedback w7 You can complete this form and mail or fax it back to us or email us at RADocumentComments ra rockw ell com Pub Title Type Very High Speed M odule Cat No 1734 VHSC5 VHSC24 Pub No 1734 UMOQ6B EN P Pub Date August 2005 PartNo 957974 42 Please complete the sections below Where applicable rank the feature 1 needs improvement 2 satisfactory and 3 outstanding Overall Usefulness 1 2 3 How can we make this publication more useful for you 2 3 Can we add more information to help you Completeness all necessary information procedure step illustration feature is provided at example guideline other explanation definition Technical Accuracy 1 2 3 Can we be more accurate all provided information is correct text illustration Clarity 1 2 3 How can we make things clearer all provided information is easy to understand Other Comments You can add additional comments on the back of this form Your Name Your Title Function Would you like us to contact you regarding your comments Loc
61. the system power is turned off ie e ultiplying Encoder M ode X1 X2 and X4 Gate Reset Quadrature Encoder Gate 1734 VHSC Forward Rotation Reverse Rotation amen as CO Vis Ge Fn e Ld miles B Input X1 Count X2 Count Outputs Updated X4 Count Continuously gt X1 Multiplying Encoder M ode Quadrature input signals are used to count on the leading up direction or trailing down direction edge of A for a bidirectional count and channel B is used to determine the direction B leads A Count Down B follows A Count Up X2 Multiplying Encoder M ode Quadrature input signals are used to count on leading and trailing edges of A for a bidirectional count and channel B is used to determine the direction B leads A Count Down B follows A Count Up About the M odules 1 5 X4 Multiplying Encoder M ode Quadrature input signals are used to count on leading and trailing edges of A and B for a bidirectional count and channel B is used to determine the direction B leads A Count Down B follows A Count Up Period Rate Mode The Period Rate mode returns an incoming frequency and a total accumulated count to the POINTBus by gating an internal 5 MHz internal clock with an external signal This mode determines the frequency and total number of input pulses by counting the number of internal 5MHz clock pulses over a user specifie
62. tinuous rate 6 rate measurement 7 for example a 2 moves the decimal point left 2 places dividing the frequency value by 100 a 1 moves it right multiplying by 10 The firmware checks for placement to be in the range 4 lt value lt 2 A value outside the range moves the decimal point to the zero position and asserts the programming error PE bit Moving the decimal point to the left negative allows high frequencies commonly present in rate measurement mode to fit within a single 16 bit word Moving the decimal point to the right positive allows low frequencies commonly present in period and continuous rate modes to have resolution displayed to 0 1 Hz and 0 01 Hz Keep frequencies below 3 2 kHz for 0 1 Hz resolution and below 320 Hz for 0 01 Hz Scalars of Z 128 Z 64 Z 32 and Z 16 should not be used when positioning is applied 0 is the default setting Publication 1734 UM 003B EN P August 2000 3 8 Very High Speed Counter M odule Input and Output Data Publication 1734 UM 003B EN P August 2000 In the counter modes counter 0 x1 encoder 1 x2 encoder 2 pwm 3 x4 encoder 4 it attenuates the counter display for example 20 divides count 1 by 20 The value may be in the range 0 lt value lt 255 The result of requesting a number other than 1 performs the function COUNT 1 ATTENUATION This is useful for scaling a large counter value to a smaller 16 bit value or a percentage 1 is the default settin
63. to any of the dialogs If you select For On Value Make an Entry For Off Value M ake an Entry Period Not equal to Off Value Not equal to On Value Continuous Between 0 16777215 Between 0 16777215 Rate Counter Not equal to Off Value Not equal to On Value Encoder Greater than 0 Greater than 0 Pulse Generator Less than Rollover Value Less than Rollover Value Publication 1734 UM 003B EN P August 2005 A active features per mode 1 10 assembly selection 3 8 3 11 base assembly mounting 2 1 C checking 1 0 defaults 4 6 class instance attribute editor 5 2 class instance editor 5 1 commissioning a node 4 2 compare window on off values 3 10 configuration data 3 6 configuration software 4 1 connecting an output to a compare window 1 12 connecting outputs to compare windows 3 9 continuous rate measurement mode 1 2 continuous rate mode operation 1 7 counter control 3 5 counter mode 1 2 counter mode operation 1 2 counter type selection 3 6 D data table complete format 3 1 decimal position frequency or counter display 3 7 encoder mode 1 2 encoder mode operation 1 3 F feedback 1 1 filter selection 3 7 filter settings 1 1 format data table 3 1 G gate interval setting 3 8 Index indicators 6 1 input status indicator 6 2 input voltage range 1 1 input w ord present channel data 3 2 installation module 2 2 removable terminal block 2 4 wiring base assembly 2 1 K keyswitch position 2 3 M
64. ue DS ES OE FO DS ES OE FO Detailed Description of Data Table Information Publication 1734 UM 003B EN P August 2000 Present Channel Data Input Word 1 This is a 32 bit unsigned long word value representing the current count of the 24 bit counter configurations count 0 x1 encoder 1 x2 encoder 2 PWM 3 x4 encoder 4 or the frequency configurations period rate 5 continuous rate 6 rate measurement 7 The range of values is 0 lt value lt OxOOFFFFFF 16 777 215 Stored Accumulated Channel Data Input Word 2 This is a 32 bit unsigned long word value representing the stored count of the counter at the time of some specified event In counter configurations configurations count 0 x1 encoder 1 x2 encoder 2 x4 encoder 4 without store modes selected these words are not updated With store modes selected they are the stored value of the counter at the time of the specified event for example rising edge of Z input In PWM 3 configuration it is the counter value at the end of the period specified by the product of the time base x gate interval In period rate 5 and continuous rate 6 configurations it is the total accumulation of unscaled Z pulses for example if scaling is set to 128 after 128 Z pulses the accumulator increases by 128 counts The maximum frequency that accumulation can follow in these two modes is 200 Hz x scalar value for example 20
65. yt alae 7 4 a r Allen Bradley Very High Speed Counter Modules 1734 VHSC5 and 1734 VHSC24 User Manual Rockwell 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 literature rockwellautomation com 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 i

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