I-46
FX Series PLC User's Manual - Data Communication Edition
Remote Maintenance
7 Connecting Line
7.1 Preparing for Connection of PLC
7. Connecting Line
This chapter explains the line connection procedure for remote maintenance.
7.1
Preparing for Connection of PLC
For remote maintenance, it is necessary to properly establish the modem-to-PLC connection.
Set the PLC using the following procedure.
1
Setting initialization for the modem on the PLC side
Set the AT command for the modem to be connected to the PLC.
For details, refer to Chapter 6.
2
Turning OFF the PLC power
After inputting the AT command to the PLC, turn OFF the PLC power.
3
Connecting the modem
Connect the communication equipment of the PLC to the modem.
For details, refer to Chapter 4.
4
Turning ON the modem power
Turn ON the modem power connected to the PLC.
5
Turning ON the PLC power
After turning ON the power to the modem, turn ON the PLC power.
When the PLC power is turned ON, the TXD (SD) and RXD (RD) LEDs light instantaneously in the
optional communication equipment operating in accordance with RS-232C, and the AT command
is sent to the modem.
If these LEDs do not light, refer "Chapter 8. Troubleshooting".
Summary of Contents for FX-485ADP
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Page 120: ...B 2 FX Series PLC User s Manual Data Communication Edition N N Network ...
Page 188: ...C 2 FX Series PLC User s Manual Data Communication Edition Parallel Link ...
Page 244: ...D 2 FX Series PLC User s Manual Data Communication Edition Computer Link ...
Page 344: ...E 2 FX Series PLC User s Manual Data Communication Edition Inverter Communication ...
Page 700: ...H 2 FX Series PLC User s Manual Data Communication Edition Programming Communication ...
Page 752: ...I 2 FX Series PLC User s Manual Data Communication Edition Remote Maintenance ...
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