
Using Socket Services by Manipulating Dedicated Control Bits | Section |
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.
Open, Send, or Receive Request Switch
Close Request Switch
Response Code
Opening, Sending, or Receiving Flag
Closing Flag
Open Flag
At least one PC cycle time be- tween response codes
Response code stored. | Response code stored. | ||
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Request Switch | Request |
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turned ON. | accepted. | Close request |
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| accepted. |
Close Request
Switch turned ON.
Not synced with Request Switches.
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
Open, Send, or Receive Request Switch
Response Code
Opening, Sending, or Receiving Flag
Closing Flag
Open Flag
Response code stored.
Request Switch | Request |
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turned ON. | accepted. | Close request |
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accepted.
Not synced with Request Switches.
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