2.7 Communications with a Mitsubishi PLC (QnA-compatible 3E Frame Protocol)
Using the MSG-SNDE Function with the MP3000 as the Master
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Setting Up the Remote Device (Mitsubishi Q/QnA-series PLC)
Use the following procedure to set up the Mitsubishi Q/QnA-series PLC (MELSEC device).
1. Start GX Developer.
2. Create a project.
3. Set the MELSECNET/Ethernet network parameters.
4. Set the Ethernet operation settings.
5. Specify the open settings.
Note: Specify an IP address that is not in use by any other devices on the same network.
Check with your network administrator for unused IP addresses.
MELSEC devices are manufactured by Mitsubishi Electric Corporation.
Contact Mitsubishi Electric Corporation for further information on MELSEC devices.
Parameter Description
Network type Ethernet
Starting I/O No. As required.
Network No. As required.
Group No. As required.
Station No. As required.
Mode Online
Parameter Description
Communications data code ASCII code
Initial timing Always wait for OPEN
IP address 192.168.001.002
Send frame setting Ethernet (V2.0)
TCP existence confirmation setting As required.
Enable Write at RUN time Enable
Open Settings Example
Parameter Description
Protocol UDP
Open system Full passive
Fixed buffer As required.
Fixed buffer communication As required.
Pairing open As required.
Existence confirmation As required.
Local station port No. 1393 hex (5011)
Destination IP address 192.168.1.1
Destination port No. 1392 hex (5010)
Setting Example to Open the Built-in Ethernet Port in a MELSEC Device
Parameter Description
Protocol UDP
Open system MC protocol
TCP connection −
Local station port No. 1393 hex (5011)
Destination IP address −
Destination port No. −
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