Section 9 Troubleshooting
9.1 Checking LED indications
LED indicators describe the state of the RIO600 modules. Each module has indication
LEDs showing the state of module functionality. Generally, each module is able to
show whether it is functioning properly. Communication and binary I/O states are
shown with separate LEDs.
• Check the details of RIO600 WHMI to view the error conditions.
Table 173: LED indicators (PSMH and PSML)
LED Color State Description
Ready Green ON PSMH is healthy
Ready Green OFF Power is not available
or PSMH is not working
Table 174: LED indicators (LECM)
LED
Color State Description
Ready Green ON LECM is ready
Ready Green Flashing LECM is ready and in
test mode or
FACTORY reset
operation in progress
IRF
Red OFF LECM is healthy
IRF Red ON LECM is in error
condition
IRF Red Flashing LECM is in warning
condition
Ethernet link Green ON Link is established
Ethernett link Green OFF Link broken/not
established/connected
to 10 Mbps network
Ethernet data
Yellow Flashing Data communication
Ethernet data Yellow ON No data on Ethernet
link
Ethernet data Yellow OFF Link broken
1MRS757488 H Section 9
Troubleshooting
RIO600 273
Installation and Commissioning Manual
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