13.1 Operation If an Error Occurs
13.1.1 Operation If the ALARM LED on the ET-LAN Unit Lights
What the Alarm "ALM" LED does
The alarm "ALM" LED on the ET-LAN unit lights if the watchdog timer in the unit is activated, to warn of a
problem.
CPU unit operation when the Alarm "ALM" LED lights
The ERROR LED on the CPU unit lights, and operation stops.
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The error code to be occurred in the CPU unit is 41 (intelligent unit error).
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If it is necessary to continue operation, change the setting of the CPU unit system register 22.
13-2