Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers User Manual
Page 97
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Publication 1785-UM012D-EN-P - July 2005
Communicating with Remote I/O 6-25
Bit Layout Diagrams for the First Word Allotted to a Remote I/O Rack or an
Extended-Local I/O Rack
This Bit
Corresponds to
Fault Bits
00
first 1/4 rack
starting I/O group 0
01
second 1/4 rack
starting I/O group 2
02
third 1/4 rack
starting I/O group 4
03
fourth1/4 rack
starting I/O group 6
Present Bits
08
first 1/4 rack
starting I/O group 0
09
second 1/4 rack
starting I/O group 2
10
third 1/4 rack
starting I/O group 4
11
fourth1/4 rack
starting I/O group 6
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Not Used
Not Used
Fault Bits
Present Bits
N15:14
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