Mitsubishi FX3U-232-BD User Manual

D-32
FX Series PLC User's Manual - Data Communication Edition
Computer Link
5 Communication Setting in FX Programmable Controller
5.1 Communication Setting Methods
5. Communication Setting in FX Programmable Controller
This chapter explains the communication setting method types and setting methods for computer link.
5.1 Communication Setting Methods
This section explains the communication setting methods and setting procedures in FX PLCs.
1. Setting method types
1) Specifying the setting using parameters in the sequence programming software:
Register the setting as parameters by executing communication setting on the personal computer screen
using the sequence programming software, and transfer them to a PLC.
(This method using parameters is not available for FX
2(FX), FX2C, or FX0N PLCs.)
2) Specifying the setting by writing data to special data registers:
Create a sequence program specifying the communication format, station number settings and time-out
time setting, and then transfer the sequence program to a PLC.
Caution
A PLC operates in the same way regardless of the selected method shown above. If both methods are
selected, priority is given to the method using parameters.
2. Communication setting method applicability for each FX Series
→ For the detailed contents of special data registers, refer to Section 9.2.
→ Setting data write method to special data registers, refer to Section 9.3.
3. Setting data flow
FX Series Specification using parameters Specification using special data registers
FX
1S, FX1N, FX2N, FX3U(ch1),
FX1NC, FX2NC, FX3UC(ch1)
 (Recommended) 
FX
3U(ch2), FX3UC(ch2)  —
FX
0N, FX2(FX), FX2C — 
Sequence
program for
set values
Parameter area
Program area
Setting window
Parameter
method
Program
method
[MOV H  D8120]
[MOV H
 D8121]
[MOV K  D8129]
D8120
D8121
D8129
D8420
D8421
D8429
Communication format
Station number settings
Time-out time setting
Communication format
Station number settings
Time-out time setting
Transferred
when power
is turned ON
Written by
program
ch1: Computer link
ch2: Computer link
PLC memory
When both methods are used at the same time,
priority is given to the contents set in the parameter
method.
In FX 3U and FX 3UC

Mitsubishi FX3U-232-BD Specifications

General

Brand	Mitsubishi
Model	FX3U-232-BD
Category	Controller
Language	English