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6-3
Section
Using Socket Services with CMND(490)
122
2. CMND(490) ends normally when the socket service request command is re-
ceived and a response is returned (response code: 0000).
Ethernet Unit
Response
CPU
User program
CMND
END
3. The Ethernet Unit starts the process requested by the parameters in the
socket service request command.
CPU
Ethernet Unit
Communications
Other node
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 socket
status will indicate completion of processing.
CPU
Socket status area
Results storage area
Ethernet Unit
Process complete
notification
Results stored