Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual - Manual (Page 161)

Publication 1756-UM534B-EN-P - November 2010 161
Appendix
D
Troubleshooting Display and Status
Indicators
This section covers problems that may occur with your 1756-RIO module.
The following areas are covered:
• 1756-RIO module’s alphanumeric display
• RIO status indicator
• CLX status indicator
• OK status indicator
• Debug log
• Fatal errors
• Updating the firmware
Alphanumeric Display The 4-character, alphanumeric display shows ‘RIO Scanner’, or ‘RIO Adapter’,
followed by the firmware version number, and any banner text defined in the
module configuration.
The display shows the following messages at power-up.
If the indicator on the 1756-RIO module does not cycle through these
messages on powerup, contact Technical Support.
Message Description
B#nn Stages in the start-up processes; nn is a hexadecimal number
Boot Next stage in power-up sequence
RIO Scanner v. x.xx.xx Module firmware revision