Panasonic FP2 Manual page 32

Programmable controller computer communication unit

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RS232C Port Wiring

FP2−CCU

4.1

RS232C Port Signals

CD (Receive Carrier Detect)

This signal goes on when the reception signal is within the specified range.

With the FP2 Computer Communication Unit, input to this terminal is invalid, so no

connections are necessary.

ER (Equipment Ready)

This signal notifies the partner device that the Computer Communication Unit is ready

for operation. The ER signal of the Computer Communication Unit is constantly on.

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