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Paul KimJul 27, 2025
What to do if Allen-Bradley I/O Systems Module Status LED is On and Channel Status LED is Flashing?
- AApril GriffinJul 27, 2025
If the Module Status LED is On and the Channel Status LED is Flashing, the module has detected an open-circuit condition, under-range condition, or over-range condition. Examine the error bits in the status word: if bit 12=1, the input has an open circuit; if bit 13=1, the input value is under range; if bit 14=1, the input value is over range; if bit 15=1, the channel has a diagnostic channel error.