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11 INSTRUCTIONS AND FUNCTIONS
ZCLOSE
Instruction
• Closes a communication channel of a communication port used to communicate with an
external device.
ZCLOSE [#<channel number>], [#<channel number>, • • • ]
Syntax
channel number
ZCLOSE #1,#2
Examples
ZCLOSE
• The ZCLOSE instruction closes communication channels opened by the ZOPEN
Description
instruction and terminates the communication through them.
• If <channel number> is not specified, all communication channels opened in the program
are closed.
• It is possible to specify multiple <channel number>, separating them by commas.
• Even if the ZCLOSE instruction is executed on a communication channel that is not open,
an error will not occur.
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Z • CLOSE
• • • •
• • • •
• • • •
REMARK
See the ZOPEN instruction and Chapter 7.
Specify the communication port to be closed.
Closes CH1 (RS-232C) and CH2 (RS-232C).
Closes all communication ports opened in the
program.
MELSEC-Q
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