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Using Socket Services with CMND(490) Section 6-3
1,2,3... 1. Execute a socket service request command (MRC: 27) for the Ethernet
Unit using CMND(490).
2. CMND(490) ends normally when the socket service request command is
received and a response is returned (response code: 0000).
3. The Ethernet Unit starts the process requested by the parameters in the
socket service request command.
4. When the process has been completed, the result is stored in the results
storage area defined in the socket service request command and the sock-
et status will indicate completion of processing.
Socket service
Request
command
CPU
User program
Ethernet Unit
CMND
END
Ethernet Unit
Response
CPU
User program
CMND
END
CPU Ethernet Unit
Communications
Other node
CPU
Socket status area
Results storage area
Ethernet Unit
Process complete
notification
Results stored