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Maintenance
186
840 USE 106 00 January 2003
Board Level Errors
PROM, RAM,
UART
Board level errors include PROM checksum, RAM data, RAM address and UART
errors. If the Hot Standby module detects one of these errors, it displays the
following pattern:
LED Display for a
Board Level
Error
The diagram below shows a LED Dislplay for a Board Level Error.
Troubleshooting The Ready indicator is a steady green, while the Com Act indicator blinks. This is
the same pattern the module displays for a startup error. Follow the troubleshooting
procedures for a startup error. If the module does not recover, replace it.
Replace the faulty CHS 110 module.
140
CHS 110 00
HOT STANDBY
Active
Ready Fault
Run Bal Low
Pwr ok
Modbus Com Err
Modbus! Error A
Com Act Error B
Primary
Mem Prt Standby