2.6 Communications with a Mitsubishi PLC (A-compatible 1E Frame protocol)
Using I/O Message Communications with the MP3000 as the Master
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5. Specify the open settings.
Note: Specify an IP address that is not in use by any other device on the same network.
Check with your network administrator for unused IP addresses.
This concludes the setup.
Starting Communications
1. Start receiving messages on the Mitsubishi Q/A-series PLC.
The system will automatically start the message reception operation. No further operation is required.
2. Turn ON the power to the MP3000 to start transmitting messages.
The system will automatically start the message transmission operation. No further operation is required.
Parameter Setting (Connection Number 1) Setting (Connection Number 2)
Protocol TCP TCP
Open system Full passive Full passive
Fixed buffer As required. As required.
Fixed buffer communication As required. As required.
Pairing open As required. As required.
Existence confirmation As required. As required.
Local station port No. 2715 hex (10005) 2716 hex (10006)
Destination IP address 192.168.1.1 192.168.1.1
Destination port No. 2715 hex (10005) 2716 hex (10006)
Setting Example to Open the Built-in Ethernet Port in a MELSEC Device
Parameter Description
Protocol TCP
Open system MC protocol
TCP connection
−
Local station port No. 1389 hex (5001)
Destination IP address
−
Destination port No.
−
Set the initial settings and router relay parameters as necessary.
• Initial Settings
These settings apply to the timers when TCP is the selected protocol. In most cases,
accept the default. Set these settings only when necessary, for example, to shorten the
time set for the TCP resend timer.
• Router Relay Parameters
Set these parameters if you are using a subnet mask pattern or default gateway.
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