Mitsubishi FX3U-232-BD User Manual page 613

FX Series PLC User's Manual - Data Communication Edition
Remote Maintenance
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 the sequence
programming software, refer
to Chapter 3.
Modem
Modem
Personal
computer
Remotely accesses the PLC.
........
Personal
computer
Commercial communication product
General telephone line
Cellular Cellular
phone phone
Important points and reference
System
FX PLC
2N
For the PLC model
...... applicability, refer to
Chapter 2.
Communication
equipment
For selection, refer to
operating in ......
Chapter 3.
accordance with
RS-232C
For wiring, refer to
..............
Chapter 4.
Setting the modem
..............
Modem
Modem
For the remote maintenance
..............
software, refer to Chapter 3.
Applicable software
1 Outline
1.1 Outline of System
chapter/section
For the personal computer
side, refer to Chapter 6.
For the PLC side, refer to
Chapter 5.
GX Developer
FX-PCS/WIN
I-3
A
B
C
D
E
F
G
H
I
Apx.