2.7 Communications with a Mitsubishi PLC (QnA-compatible 3E Frame Protocol)
Using I/O Message Communications with the MP3000 as the Master
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4. Set the connection parameters.
Enter “5000” in the MP3000 Local Port Box.
Enter the following address for the remote device in the Node IP Address Box: 192.168.001.002.
Enter “5010” in the remote device Node Port Box.
Select TCP in the Connect Type Box.
Select MELSEC (QnA-compatible 3E) in the Protocol Type Box.
Select BIN in the Code Box.
Enter “IW0100” in the Head register number Box as the read data destination.
Enter “100” in the next box as the size of data to read.
Select Data register (D) as the device type in the Head register number box.
Enter “02000” as the first address in the remote device.
Enter “0” in the Request destination module I/O number Box for the remote device.
The values and meanings of the request destination Module I/O number setting are listed below.
Select Low in the Data update timing Box as the timing to update I/O data between the CPU Func-
tion Module and 218FD.
Note: The data update timing is the timing at which the CPU Function Module and 218IFD exchange data.
Communications with the remote device are performed asynchronously. The data update timing there-
fore does not necessarily mean that the messages are sent to the remote device.
Note: In I/O message communications, a message is transmitted from separate ports if registers are both read and
written. Therefore, the connected remote device must have two connections to receive both messages.
5. Save the data to flash memory.
Note: Changes made to the communications or connection parameters will become effective only after the changes
have been saved to flash memory and the power supply has been cycled.
This concludes the settings for using the MP3000 as the master.
Request Destination Module
I/O Number in I/O Message
Communications
Request Destination Module I/O Number
for Transmission to a Mitsubishi PLC
Module I/O
Number
Meaning
0 03FF hex
Local station CPU, control CPU, and own sys-
tem CPU
1 03D0 hex Control system CPU
2 03D1 hex Standby system CPU
3 03D2 hex System A CPU
4 03D3 hex System B CPU
5 03E0 hex Multi-CPU No.1
6 03E1 hex Multi-CPU No. 2
7 03E2 hex Multi-CPU No. 3
8 03E3 hex Multi-CPU No. 4
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