In Case Of Communication Error (Rs-232C) - Panasonic FP-XH M8N16PD User Manual

Troubleshooting

20.2.8 In Case of Communication Error (RS-232C)

 Object
Product no. Communication Interface
Control unit
standard RS-232C (3-wire) × 1 channel
configuration
AFPX-COM1 RS-232C (5-wire) × 1 channel
AFPX-COM2 RS-232C (3-wire) × 2 channel
AFPX-COM4 RS-232C (3-wire) × 1 channel
AFPX-COM5 RS-232C (3-wire) × 1 channel
 Situation
Connections and settings may be incorrect.
PROCEDURE
1. Confirm the setting of the system register.
Verify if the setting corresponding to the communication port number assigned is
correct. When selecting the inter-PLC link, verify if the connection area is
repeated.
2. Verify if the CS signal is ON.
When using 3-wire type, set the connection RS signal and CS signal to ON. When
using 5-wire type, verify the RS signals of the communication cassette LED and
the matched devices.
3. Verify the connection with the matched devices.
Confirm that the SD terminal of the matched device is connected to the RD
terminal at the PLC side, and the RD terminal of the matched device is connected
to the SD terminal at the PLC side. Also, make sure the SG terminals from both
devices are connected.
20-10
Communication Port No. Assigned
Main Cassette
Unit mounting part 1
COM0 COM1 COM2
●
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Cassette
mounting part 2
COM3 COM4
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