GE Fanuc Series 90 Micro


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GE Fanuc Series 90 Micro for controlling pneumatic and electrical controls. When I press any of these controls, the controls are not working. Green LED is glowing in input area of the PLC corresponding to that particular control, but no output LED is glowing. Kindly help, somebody.
You must have a program loaded. PLC must be then in RUN mode. This is indicated by RUN light ON. Please check this. Then consult a person who wrote the program.