Communication Test - Mitsubishi Electric FX5 User Manual

Communication test

It is recommended to wire the master station and slave station, perform communication settings, and then execute the
communication test using the following procedure to confirm proper operation.
Communication test program is not required during operation.
Communication test process
1.
After configuring the communication setting of the master station and slave station, and programming, turn the CPU
module power supply OFFON or reset the system.
2.
Check if the SD and RD LEDs of the used serial port are flashing. If the LEDs are OFF, refer to the troubleshooting
(Page 33) below.
3.
Set the inputs (X0 to X3) to ON or OFF in the master station, and confirm that the outputs (Y000 to Y003) turn ON or OFF
in each slave station.
4.
Operate the inputs (X0 to X3) of each slave station to check that the master station output (Y0 to Y3) or the slave station
output (Y4 to Y7, Y10 to Y17...Y34 to Y37) turns ON.
Test program for communication (master station)
RUN monitor
SM400
MOV
MOV
MOV
MOV
Specify device numbers for the connected slave stations.
K1X0 D1000
D1010 K1Y4
D1020 K1Y10
D1070 K1Y34
END
Step for writing information from the master station
(master station → slave station)
The contents of X0 to X3 in the master station are
transferred to outputs (Y) in each slave station.
Steps for reading information from a slave station
(slave station → master station)
By using link devices, read information from all
other slave stations.
The table below shows the link devices to be used:
Slave station No. Link device
1 D1010
2 D1020
3 D1030
4 D1040
5 D1050
6 D1060
7 D1070
2
Output (Y)
Y4 to Y7
Y10 to Y13
Y14 to Y17
Y20 to Y23
Y24 to Y27
Y30 to Y33
Y34 to Y37
2 N:N NETWORK
27
2.7 Programming