System register instructions
991
Part III FP Instructions
IF DF(bCountUp) Then
SYS1('HSC0,UP');
SYS1('HSCB,UP');
End_If;
IF DF(bCountDown) Then
SYS1('HSC0,DOWN');
SYS1('HSC7,DOWN');
This changes the communication conditions based on the RS485 of the COM port or Tool port, in
response to the contents specified by the character constant.
The port response time specified by the first keyword is delayed based on the contents specified by
the second keyword. This instruction is used to delay the response time on the PLC side until the
state is reached in which commands can be sent by an external device and responses can be
received from the PLC.
The first and second keywords are separated by a comma.
LD
ST
When programming with structured text, enter the following:
End_If;
RS485
Response
Time Control
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