I've a GE Fanuc 90-30 with CPU331.
All LED is on, but when I try to connect/plug my computer to the RS485 port the "OK" and "RUN" turns off, then Im not able to go online.
The same happens when the program set multiple outputs, OK" and "RUN" turns off. I need to power recycle to get the PLC back in RUN mode.
Is the Power module defective or the CPU, or other modules?
Thanks
All LED is on, but when I try to connect/plug my computer to the RS485 port the "OK" and "RUN" turns off, then Im not able to go online.
The same happens when the program set multiple outputs, OK" and "RUN" turns off. I need to power recycle to get the PLC back in RUN mode.
Is the Power module defective or the CPU, or other modules?
Thanks
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