Rockwell Automation 1790D-XXXX DeviceNet 32 Point Digital Base Terminal Block CompactBlock LDX I/O Series B - Manual (Page 15)

DeviceNet 32 Point Digital Base Terminal Block CompactBlock LDX I/O 15
Publication 1790-IN014A-EN-P - March 2008
Cable Break Procedures
A cable break in any location between either of the following
produces data of 0 in the data table for all inputs down stream of the
cable break:
•
Base and digital input expansion module
•
Digital input expansion module and another digital input
expansion module
All digital-expansion inputs produce data of 0 if the expansion cable
is removed. No status is in the default produced assembly. Attribute
101 in the identity object reports module faults.
If no faults are present, an explicit message GET command returns 0.
If the ribbon cable is disconnected, it returns 0x04, which is for
module location change. The module status indicator also flashes
indicating a fault if an expansion is disconnected. Select an alternate
produced assembly that contains the expansion status byte, using the
EDS Properties configuration dialog.
I/O Status Indicators
Indicator Status Description
Each output None Output is not energized.
Green Output is energized.
Each input None No valid input is present.
Green Valid input is present.