Rice Lake ALLEN-BRADLEY Remote I/O Interface, Installation And Programming Manual

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© 2003 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
Version 2.04, July 2003
Contents
About This Manual ................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
2.0 Installation ................................................................................................................................... 2
2.1 Installing the Remote I/O Interface ...................................................................................................... 2
2.1.1 Replace Backplate .................................................................................................................................... 2
2.1.2 Install Remote I/O Interface Board ............................................................................................................. 2
2.1.3 Connect Cables to Remote I/O Interface ................................................................................................... 2
2.1.4 Reassemble Enclosure ............................................................................................................................. 3
2.2 Physical Connections for Installed Boards........................................................................................... 5
2.2.1 Power Connections................................................................................................................................... 6
2.2.2 Termination Resistance ............................................................................................................................. 6
2.2.3 Serial Connections .................................................................................................................................... 6
2.2.4 A-B Network Connections......................................................................................................................... 6
2.3 DIP Switch Configuration .................................................................................................................... 7
2.4 LED Indicators .................................................................................................................................... 9
2.5 Indicator Setup ................................................................................................................................... 9
2.6 Allen-Bradley Serial Stream............................................................................................................... 10
2.7 Decimal Point Handling..................................................................................................................... 10
3.0 Discrete Transfer Commands .................................................................................................... 11
3.1 Output Image Table Format .............................................................................................................. 11
3.2 Input Image Table Format ................................................................................................................. 14
3.3 Bit Shifting ........................................................................................................................................ 15
4.0 Block Transfer Commands......................................................................................................... 16
4.1 Set Tare Value .................................................................................................................................. 17
4.2 Set Setpoint Values .......................................................................................................................... 18
4.3 Read Setpoint Values ....................................................................................................................... 20
4.4 Read Accumulator Value .................................................................................................................. 21
4.5 Read Tare Value ............................................................................................................................... 22
4.6 Read Gross Value............................................................................................................................. 23
4.7 Read Net Value ................................................................................................................................ 24
4.8 Set Multiple Setpoint Values ............................................................................................................. 25
4.9 Read Multiple Setpoint Values .......................................................................................................... 26
4.10 Set Batching State .......................................................................................................................... 27
5.0 Operation.................................................................................................................................... 28
5.1 Test Program for Verifying Remote I/O Interface Operation ............................................................... 28
5.2 PLC Program for Converting 20-bit Values to Floating Integers......................................................... 30
5.3 Using Block Transfer to Set and Read Setpoint Values ..................................................................... 31
6.0 Troubleshooting ......................................................................................................................... 33
7.0 Remote I/O Interface Specifications ......................................................................................... 35
Remote I/O Interface Limited Warranty ................................................................................................. 36
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.rlws.com or obtained by
calling 715-234-9171 and asking for the training department.
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