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Publication 1794-6.5.16 – September 1998

 

Specifications – 1794-IP4 4 Channel Pulse Counter Module

Number of Inputs

4 pulse counter interfaces – 2 inputs each

Counting Frequency

100KHz maximum. Each signal condition must
be stable for at least 2

µ

s to be recognized.

Input Range

Input ON

Input OFF

Maximum 26.4V dc (24V dc +10%)
Minimum 6V dc
Maximum 3V dc
Minimum –26.4V dc

Input Current (typical)

3mA @ 6V dc
9mA @ 12V dc
15mA @ 24V dc

Module Location

Mounts on Cat. No. 1794-TB2, TB3, -TB3S,
and -TBN Terminal Base Units

Isolation Voltage

500V dc

Flexbus Current

5mA @ 5V dc

Power Supply (external)

12–24V dc (+10%)

Current consumption from
external power supply

150mA @ 12V dc
75mA @ 24V dc

Power Dissipation

5W maximum @ 26.4V dc

Thermal Dissipation

Maximum 17.1 BTU/hr @ 26.4V dc

Indicators (field side driven,
logic side indication)

1 green/red power/status indicator
8 yellow status indicators – logic side
8 yellow measurement function indicators

Keyswitch Position

1

Specifications continued on the next page.

Allen-Bradley HMIs

Содержание FLEX I/O 1794-IP4

Страница 1: ...User Manual FLEX I O 4 Input Pulse Counter Module Cat No 1794 IP4 Allen Bradley Allen Bradley HMIs...

Страница 2: ...s such as those described in this publication Reproduction of the contents of this copyrighted publication in whole or in part without written permission of Allen Bradley Company Inc is prohibited Thr...

Страница 3: ...vered in that chapter Chapter Title Contents 1 Overview of FLEX I O and the Pulse Counter Module Describes FLEX I O pulse counter modules features and how they function 2 How to Install Your Pulse Cou...

Страница 4: ...794 ADN 24V dc DeviceNet Adapter 1794 5 14 1794 6 5 5 1794 ASB C 24V dc Remote I O Adapter 1794 5 50 1794 6 5 9 1794 ASB2 B 24V dc 2 Slot Remote I O Adapter 1794 5 44 1794 6 5 13 1794 APB 24V dc Profi...

Страница 5: ...ac 8 Input Module 1794 5 9 1794 OA8 120V ac 8 Output Module 1794 5 10 1794 IA8I 120V ac Isolated 8 Input Module 1794 5 55 1794 OA8I 120V ac Isolated Output Module 1794 5 56 1794 IA16 120V ac 16 Input...

Страница 6: ...Using This Manual P 4 Publication 1794 6 5 16 September 1998...

Страница 7: ...e Module 2 4 Mounting the Terminal Base Unit on a DIN Rail 2 4 Panel Wall Mounting 2 6 Mounting the Pulse Counter Module on the Terminal Base Unit 2 7 Connecting Wiring for Your Pulse Counter Module 2...

Страница 8: ...put 5 3 Mapping Data into the Image Table 5 3 Pulse Counter Module 1794 IP4 Image Table Mapping 5 3 Block Transfer Read Word Assignments for the Pulse Counter Module 1794 IP4 5 4 Block Transfer Write...

Страница 9: ...4 Image Table Mapping 6 6 Bit Word Definitions for Block Transfer Read Words for the Pulse Counter Module 6 6 Chapter 7 What This Chapter Contains 7 1 Status Indicators 7 1 What s Next 7 1 Chapter 8 S...

Страница 10: ...Table of Contents iv Publication 1794 6 5 16 September 1998...

Страница 11: ...nary data The module s primary use is accurate high speed counting of pulses from flow meters or density meters This includes quantity counting and speed calculations The module has 2 16 bit up down c...

Страница 12: ...bit Counter 16 bit Counter 16 bit Counter 16 bit Counter 16 bit Counter 16 bit Counter 16 bit Counter 16 bit Counter Control Word N D N D N D N D N D Configuration is selected by setting A below in th...

Страница 13: ...process ADAPTER ACTIVE FAULT LOCAL FAULT 24VDC POWER SUPPLY RIO ADAPTER 1794 ASB Allen Bradley 1 The adapter transfers your configuration data to the module using a BTW Flexbus External devices trans...

Страница 14: ...e Counter module and the control system take place using variables accessible in the control system program Examples of variables are selection of clock frequency ClockFrequency selection of measureme...

Страница 15: ...measurement is not complete 1 The positive edge of the flag indicates that the measurement is complete MeasurementReady is reset by the module when a positive edge of StartMeasurement is received Sele...

Страница 16: ...ion 0 Measure during 1 period 1 Measure during 2 period 2 Measure during 4 period 3 Measure during 8 period 4 Measure during 16 period 5 Measure during 32 period 6 Measure during 64 period 7 Measure d...

Страница 17: ...backplane 24V dc power must be applied to your module before installation If power is not applied the module position will appear to the adapter as an empty slot in your chassis If this product has th...

Страница 18: ...lications Industrial Automation Wiring and Grounding Guidelines For Noise Immunity publication 1770 4 1 Guidelines for Handling Lithium Batteries publication AG 5 4 Automation Systems Catalog publicat...

Страница 19: ...any noisy dc digital I O modules in your system Pulse Counter Module wiring separate from digital wiring Note All modules powered by the same power supply must be pulse frequency or TC RTD mV modules...

Страница 20: ...inal base unit when power is applied Interruption of the flexbus can result in unintended operation or machine motion 1 Remove the cover plug if used in the male connector of the unit to which you are...

Страница 21: ...is fully retracted 30077 M Press down on the terminal base unit to lock the terminal base on the DIN rail If the terminal base does not lock into place use a screwdriver or similar device to open the...

Страница 22: ...m to the wall or panel If you are installing your module into a terminal base unit that is already installed proceed to Mounting the Pulse Counter Module on the Terminal Base on page2 7 Use the mounti...

Страница 23: ...2 at a slight angle and engage the top of the mounting plate in the indention on the rear of the adapter module 5 Press the adapter down flush with the panel until the locking lever locks 6 Position t...

Страница 24: ...power When you remove or insert a module with field side power applied an electrical arc may occur An electrical arc can cause personal injury or property damage by sending an erroneous signal to your...

Страница 25: ...nd 35 and 51 common 34 and 50 24V dc 16 and 33 chassis ground 40 thru 45 chassis ground Connecting Wiring using a 1794 TB3 and TB3S Terminal Base Units 1 Connect individual input wiring N N or D D to...

Страница 26: ...l 34 on the next base unit 6 If continuing common to the next terminal base unit connect a jumper from terminal 33 common on this base unit to terminal 16 on the next base unit ATTENTION Do not daisy...

Страница 27: ...t 15V at the input Do not limit the input to less than 6V 2 Connect the associated input common to the corresponding odd numbered terminal on row C for each input as indicated in the table below 3 Con...

Страница 28: ...2 N 4 21 39 4 N 5 22 40 5 3 N 6 23 41 6 N 7 24 42 7 32 bit Period Time Measurement 0 D 8 25 43 8 D 9 26 44 9 1 D 10 27 45 10 D 11 28 46 11 2 D 12 29 47 12 D 13 30 48 13 3 D 14 31 49 14 D 15 32 50 15 0...

Страница 29: ...7 38 39 40 41 42 15 51 34 0V dc 12 24V dc External Power Supply 12 24V dc Signal Inputs Channel 0 Channel 3 Channel 2 Channel 1 0 7 A B C 1 6 Example of 32 bit Period Time Measurement Wiring 4 channel...

Страница 30: ...of internal logic is complete and correct B Insertable label for writing individual I O assignments C Status indicators for each channel Indication Color Description P Yellow When on indicates the inp...

Страница 31: ...ming required for communication to take place between the module and a PLC processor These programs can be modified to suit your application requirements A configuration block transfer write BTW is in...

Страница 32: ...file may not provide meaningful data to the PLC 2 processor PLC 5 Family Processor Block transfer instructions with the PLC 5 processor use a control file and a data file The block transfer control f...

Страница 33: ...obtained by the PLC 5 processor from the IP4 module is placed in memory starting at N18 10 and is 10 words long lThe program continuously performs read block transfers to read data from the module IP...

Страница 34: ...S B3 5 1 BTR ERROR BIT B3 0 12 0002 B3 5 1 COP COPY FILE SOURCE DEST M1 1 200 B3 10 LENGTH 4 0003 BTW PENDING B3 15 0 CHECK BTW STATUS B3 15 1 BTR status is copied to the B3 0 area when a BTR is in pr...

Страница 35: ...M1 1 103 N7 10 6 BTR PENDING B3 5 0 B3 5 1 BTR ENABLE BIT B3 100 15 L U U 0005 When a BTR successfully completes and the done bit is detected the BTR data is copied into the N7 0 to N7 9 area Whe a BT...

Страница 36: ...possible When a BTW occurs the error code is moved to N7 11 To next page 0 BTR ENABLE BIT BTR DONE BIT BTR ERROR BIT BTR PENDING BTR ENABLE BIT B3 100 15 B3 0 13 B3 0 12 B3 5 0 B3 100 15 0010 B3 10 13...

Страница 37: ...the scanner module while the BTW is in progress until the enable done and error bits are turned off BTR DONE BIT B3 0 13 BTR CONTROL BTW ERROR BIT B3 10 12 BTW ENABLE BIT B3 110 15 MOV MOVE SOURCE DE...

Страница 38: ...Publication 1794 6 5 16 September 1998 In this chapter you learned how to program your 1794 IP4 Pulse Counter module using block transfer instructions and ladder logic Now you can configure your modul...

Страница 39: ...s available are number of inputs encoder multiplier gate function latch function rollover Configure your module for its intended operation by means of your programming terminal and write block transfe...

Страница 40: ...put Size 0 to 3 Words 1 to 10 Words Counter 00 16 bit period measurement or low word of 32 bit period measurement for channel 0 Code for identification of software version Control Word 0 Sets the meas...

Страница 41: ...high word of 32 bit period measurement for channel 3 8 Readback of Control Word 2 8 Reserved M3 M2 M1 M0 9 Revision read software version code Where M positive edge measurement ready for the respectiv...

Страница 42: ...iod multiple 2 Control Word 2 sets the start of a new measurement 3 4 Not used Bit Word Definitions for the Block Transfer Write Words for the Pulse Counter Module Write Word Bit Definition Write Wor...

Страница 43: ...10 Clock frequency for period time measurement Channel 2 refer to bit 00 Bits 09 11 11 13 Selection of Number of periods for measurement Channel 2 see bits 01 03 above Bit 12 14 Clock frequency for p...

Страница 44: ...4 6 Writing Configuration to and Reading Status from Your Module with a Remote I O Adapter Publication 1794 6 5 16 September 1998...

Страница 45: ...to the network Refer to the DeviceNetManager Software User Manual publication 1787 6 5 3 Output data is received by the adapter in the order of the installed I O modules The Output data for Slot 0 is...

Страница 46: ...O o ule ault 3 This bit is set 1 when an error is detected in slot position 3 I O Module Fault 4 This bit is set 1 when an error is detected in slot position 4 5 This bit is set 1 when an error is de...

Страница 47: ...word of 32 bit period measurement for channel 0 Code for identification of software version Control Word 0 Sets the measure function Control Word 2 sets the start of a new measurement Control Word 1...

Страница 48: ...measurement for channel 3 9 Readback of Control Word 2 9 Reserved M3 M2 M1 M0 10 Revision read software version code Where M positive edge measurement ready for the respective channel Block Transfer W...

Страница 49: ...Word 1 Bits 00 Pulse counting and period time measurement selection for Channel 0 0 pulse counting and period time measurement selected 1 period time measurement selected Bits 01 Pulse counting and pe...

Страница 50: ...r measurement Channel 2 see bits 01 03 above Bit 12 14 Clock frequency for period time measurement Channel 1 refer to bit 00 Bits 13 15 15 17 Selection of Number of periods for measurement Channel 1 s...

Страница 51: ...or Pulse Counter modules the defaults reflect the actual number of input words output words For example for the Pulse Counter module you have 10 input words and 5 output words You can change the I O d...

Страница 52: ...5 8 How Communication Takes Place and I O Image Table Mapping with the DeviceNet Adapter Publication 1794 6 5 16 September 1998...

Страница 53: ...scanners One 1794 ACN15 and ACNR15 ControlNet adapter can interface up to eight terminal base units with installed FLEX I O modules forming a FLEX I O system of up to eight slots The adapter communic...

Страница 54: ...ber of nodes application program NUT amount of scheduled bandwidth used etc determine how much time there is for unscheduled messaging Module I O Mapping The I O map for a module is divided into read...

Страница 55: ...to slot 7 Adapter Status Slot 0 Input Data Slot 1 Input Data Slot 7 Input Data Slot 0 Output Data Slot 1 Output Data Slot 7 Output Data Read Data Output Data Network READ Network WRITE ControlNet Ada...

Страница 56: ...d since power up I O State Created by PLC 5 controller 9 Bit 0 idle Bit 1 run 10 thru 15 Not used set to 0 Possible causes for an I O Module Fault are transmission errors on the FLEX I O backplane a f...

Страница 57: ...e of the controlling processor or scanner Only 2 states can be detected run mode or program mode idle When run mode is detected the adapter copies the output data received from the processor to the co...

Страница 58: ...nel 2 or high word of 32 bit period measurement Counter 30 16 bit period measurement or low word of 32 bit period measurement for channel 3 Counter 31 pulse counter for channel 3 or high word of 32 bi...

Страница 59: ...on Configuration Wor 0 Control Word 0 Control word for setting the function of counter 0 Word 0 Bits 00 Pulse counting and period time measurement selection for Channel 0 0 pulse counting and period t...

Страница 60: ...07 Selection of Number of periods for measurement Channel 1 see bits 01 03 above Bit 08 10 Clock frequency for period time measurement Channel 2 refer to bit 00 Bits 09 11 11 13 Selection of Number o...

Страница 61: ...up Green indicates initialization of internal logic is complete and correct B Insertable label for writing individual I O assignments C Status Indicators Indication Color Description P Yellow When on...

Страница 62: ...7 2 Troubleshoot the Pulse Counter Module Publication 1794 6 5 16 September 1998...

Страница 63: ...mA 12V dc 15mA 24V dc Module Location Mounts on Cat No 1794 TB2 TB3 TB3S and TBN Terminal Base Units Isolation Voltage 500V dc Flexbus Current 5mA 5V dc Power Supply external 12 24V dc 10 Current cons...

Страница 64: ...exceed 40oC 25 to 70oC 13 to 158oF 5 to 90 noncondensing operating 5 to 80 noncondensing nonoperating 15 g peak acceleration 11 1 ms pulse width Tested 2 g 10 500Hz per IEC 68 2 6 Input Conductors Wir...

Страница 65: ...n 2 1 ControlNet I O unscheduled non discrete I O data transfer 6 2 unscheduled operations ladder rung messages 6 2 messaging from programming devices 6 2 peer to peer messaging 6 2 ControlNet I O Tra...

Страница 66: ...ansfer programming 3 2 PLC 5 family processor block transfer programming 3 2 polled I O structure 5 1 6 3 power defaults 5 7 R removing and replacing under power RIUP 2 8 S sample program PLC 5 3 2 se...

Страница 67: ...sibility info not in manual text illustration Technical Accuracy Completeness What information is missing Clarity Sequence What is not in the right order What is unclear Other Comments Use back for mo...

Страница 68: ...REMOVE NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE TECHNICAL COMMUNICATION 1 ALLEN BRAD...

Страница 69: ...cumentation updates technical subscription services Engineering and Field Services application engineering assistance integration and start up assistance field service maintenance support Technical Tr...

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