Mitsubishi Electric QJ71E71-100 User Manual page 247

(3) Functions
• This instruction performs the close process for a connection specified by (S1) for the module specified by Un
(connection closed).
• Completion of the CLOSE instruction can be checked with Completion device (D1)+0 and (D1)+1.
• Completion device
(D1)+0:
• Completion device
(D1)+1:
[Operation while the CLOSE instruction is being executed]
Program
CLOSE instruction
Completion device
Completion device + 1
• The ZP.CLOSE instruction is executed on the rising edge (OFF ON) of the close command.
Do not perform a close process using I/O signals and using the dedicated instruction together for the same connection.
Doing so will result in malfunction.
(4) Errors
• If a dedicated instruction ends with an error, Completion device (D1)+1 turns on, and the error code is stored
in Completion status (S2)+1.
Turns on at the END process of the scan where the CLOSE instruction is
completed and turns off at the next END process.
Turns on and off depending on the completion status of the CLOSE instruction.
• Normal completion:
• Abnormal end:
END
Scan Scan
process process
Executed
Connection
closed
CHAPTER 15 DEDICATED INSTRUCTIONS
Stays off and does not change.
Turns on at the END process of the scan where
the CLOSE instruction is completed and turns off
at the next END process.
END END
Scan
process
Abnormally ended
15
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