I-3
FX Series PLC User's Manual - Data Communication Edition
Remote Maintenance
1 Outline
1.1 Outline of System
A
Common Items
B
N:N Network
C
Parallel Link
D
Computer Link
E
Inverter
Communication
F
Non-Protocol
Communication
(RS/RS2 Instruction)
G
Non-Protocol
Communication
(FX
2N
-232IF)
H
Programming
Communication
I
Remote
Maintenance
Apx.
Discontinued
models
1. Outline
This chapter explains remote maintenance.
1.1 Outline of System
Remote maintenance performs program transfer and device monitoring using Windows programming
software with a PLC connected to the telephone line by way of a modem.
1.1.1 Maintenance for programs in PLC
1) Sequence programs can be changed by transferring and writing programs during RUN.
2) Maintenance can be performed by device monitoring, PLC diagnosis, forced ON/OFF and changing set
values and current values.
3) A line can be established from a personal computer to a modem connected to a PLC.
......
For selection, refer to
Chapter 3.
For wiring, refer to
Chapter 4.
......
For the PLC model
applicability, refer to
Chapter 2.
Important points and reference
chapter/section
Communication
equipment
operating in
accordance with
RS-232C
FX
2N
PLC
System
Commercial communication product
..............
For the remote maintenance
software, refer to Chapter 3.
Setting the modem
îš‚
For the personal computer
side, refer to Chapter 6.
îš‚
For the PLC side, refer to
Chapter 5.
General telephone line
Modem
..............
..............
Personal
computer
Personal
computer
For the sequence
programming software, refer
to Chapter 3.
........
Applicable software
îš‚
GX Developer
îš‚
FX-PCS/WIN
Remotely accesses the PLC.
Modem
Cellular
phone
Modem Modem
Cellular
phone
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