System Configuration - Mitsubishi FX3U Series User Manual

FX Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
3.

System Configuration

This section explains the configuration of communication equipment operating in accordance with RS-485
and RS-232C and the selection of equipment required by FX
3.1 System Configuration
This section outlines the system configuration required to use MODBUS serial communication.
Communication equipment operating
in accordance with MODBUS RS-485
or RS-232C
1
+
Communication
adapter connection board
For combinations of communication equipment for each FX
16
FX
3U
+
Special adapter
PLCs.
3U
indicates the combination of communication equipment pattern type.
1
PLC Important point in selection
Attach the special adapter
connection board to the main unit,
and then attach the communication
adapter on the left side of the main
unit.
3U
3 System Configuration
3.1 System Configuration
Total extension
RS-485: 500 m
RS-232C: 15 m
Series, refer to the next page.
distance
(1640' 5")
(49' 2")