User's Manual

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

00010203040506070809101112131415

Not Used

Fault BitsPresent Bits

N15:14