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Using Socket Services by Manipulating Dedicated Control Bits Section 6-7
Close Request Switch
The processing results are stored as the response code when the Close
Request Switch is used. There will always be one PLC cycle time between
turning OFF the Request Switch for the canceled process and turning of the
Close Request Switch, allowing time for the response code to be read.
Note The Open Flag will not turn ON at all if a close request is made during open
processing.
Force-close Switch
The requested processes are canceled and an response code is stored when
the Force-close Switch is used.
Open, Send, or Receive
Request Switch
Close Request Switch
Response Code
Opening, Sending, or
Receiving Flag
Closing Flag
Open Flag
Response code stored. Response code stored.
Request Switch
turned ON.
Request
accepted.
Close Request
Switch turned ON.
Close request
accepted.
Not synced with
Request Switches.
At least one PC cycle time be-
tween response codes
Open, Send, or Receive
Request Switch
Force-close Switch
Response Code
Opening, Sending, or
Receiving Flag
Closing Flag
Open Flag
Response code stored.
Request Switch
turned ON.
Request
accepted.
Force-close
Switch turned ON.
Close request
accepted.
Not synced with
Request Switches.