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2.10 Communications with a JTEKT PLC (TOYOPUC Protocol)
Using the MSG-RCVE Function with the MP3000 as a Slave
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Ethernet Communications
6.
Create a ladder program for send data to the send data area in the file memory on network
connection 1.
Note: Refer to the following manual for information on ladder programming using the SPW instruction.
Manual for the 2PORT-EFR Module
from JTEKT Corporation
This concludes the setup.
Starting Communications
Use the following procedure to write the data in the file memory in the JTEKT PLC to the hold registers in
the MP3000.
1.
Turn ON the power to the MP3000 to start receiving messages.
In the ladder programming example, the message receive function is executed immediately after the scan
starts in the MP3000. While the Machine Controller is operating, a normally ON coil is used to keep the
message receive function executing.
2.
Start the processing to open connection 3 from the JTEKT PLC to start data transmissions.
Note: The MP3000 will wait for the TCP connection after it starts execution of the MSG-RCVE function.
Therefore, the power supply to the MP3000 must be turned ON before the power supply to the JTEKT
PLC.
SB000004: Always ON Coil