Rockwell Automation 1756-IH16ISOE ControlLogix Sequence of Events Module - Manual (Page 108)

Publication 1756-UM528A-EN-P - April 2004
8-2 Troubleshooting the Sequence of Events Module
Table 8.2 describes how to use the Sequence of Events module’s LED
status indicators.
Using RSLogix 5000 To
Troubleshoot the Module In addition to the LED status indicators on the module, RSLogix
5000 alerts you to fault and other conditions in one of three ways:
• Warning signal on the main screen next to the module – This
occurs when the connection to the module is broken.
Table 8.2
This indicator: With this display: Means: Take this action:
OK Steady green light The inputs are being multicast and in normal
operating state. None
Flashing green light The module has passed internal diagnostics
but is not multicasting inputs. Configure the module with RSLogix 5000.
Flashing red light One of the following:
• Previously established
communication has timed out
• A FLASH update is in progress.
• Check controller and chassis
communication.
• Finish the update
Steady red light An unrecoverable error has occurred on the
module. Replace the module.
I/O State Yellow The input is active. None
Warning icon appears when a
communications fault occurs or
if the module is inhibited
Warning signal - The module in slot 1 has a communications fault