Rockwell Automation 1791ES-IB16 Guard I/O EtherNet/IP Safety Modules - Manual (Page 73)

Rockwell Automation Publication 1791ES-UM001D-EN-P - May 2013 73
Get Diagnostic Status from Modules by Using Explicit Messaging Appendix A
This creates a two-byte input assembly, as shown for the 1791ES-
IB8XOBV4 module.
2. Use the CombinedInputStatus and CombinedOutputStatus bits to detect
if one or more of the I/O points on the module have a fault.
• If any input or output status bit goes to a value of 0 (0=error, 1=no
error), use the InputStatus and OutputStatus bits to condition your
msg rungs as follows.
• Note that the second rung can be used to read the status on mode
transition and once a fault is detected, continue reading until the fault is
corrected.
• Place these rungs in the standard task.