Communication Setting Method Using Sequence Program - Mitsubishi FX3U-USB-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
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9.3

Communication Setting Method Using Sequence Program

When adjuting the communication setting using a sequence program, transfer values to D8120
(communication format), D8121 (station number settings) and D8129 (time-out time setting), and then turn
the power ON.
This section explains the communication setting method using a sequence program.
9.3.1 Setting procedure
Perform the following procedure to set the communication using a sequence program.
1
Creating a program using a programming tool
Create the program shown below using a programming tool.
M8000
M8002
Initial pulse
2
Writing the sequence program to the PLC
Transfer the created program to the PLC.
3
Setting the PLC mode to RUN
Set the PLC to RUN mode, and execute the program.
4
Turning the PLC power OFF and then ON
Turn OFF the PLC power, and then turn it to ON so that the communication setting becomes valid.
9.3.2 Caution on communication setting using sequence program
Do not set the communication using a sequence program and parameters at the same time.
If the communication is set using both methods at the same time, priority is given to the setting using
parameters.
D-94
M8120
FNC 12
H6082 D8120
MOV
FNC 12
H0 D8121
MOV
FNC 12
K1 D8129
MOV
→ For details on these devices, refer to Section 9.2.
9.3 Communication Setting Method Using Sequence Program
This step is required only in FX
The communication format is set.
The station number is set.
The time-out time setting is set.
9 Related Data
PLC.
0N