User`s manual

17
FX3U Series Programmable Controllers
User’s Manual - MODBUS Serial Communication Edition
3 System Configuration
3.2 Applicable FX PLC and Communication Equipment
1
Outline
2
Specifications
3
System Configuration
4
Wiring
5
Communication Setup
6
Related Devices and Comm. Status
7
MODBUS Standard Commands
8
Master Specification
9
Slave Specification
10
Creating Programs
3.2 Applicable FX PLC and Communication Equipment
Select the most suitable combination of (optional) communication equipment from the table below, and put a
check mark in the "Check" column of the corresponding equipment.
For communication in accordance with RS-232C
FX Series Communication equipment (option)
Total extension
distance
Check
FX
3U
When using channel 1 (ch 1)
15 m
(49' 2")
When using channel 2 (ch 2)
15 m
(49' 2")
15 m
(49' 2")
FX 3U -CNV-BD
+
FX 3U -232ADP-MB
(9-pin D-Sub, male)
ch1
+
FX 3U -232ADP-MB
(9-pin D-Sub, male)
ch2
RD
SD
ch1
FX
3U -  -BD
(Where  represents either
232, 422, 485 or USB)
FX 3U -CNV-BD
+
ch1
+
FX 3U -232ADP-MB
(9-pin D-Sub, male)
ch2
FX 3U -  ADP (-MB)
(Where  represents
either 232 or 485)