Yaskawa YASNAC PC NC PLC Programming Manual - Manual (Page 77)

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YASNAC PCNC PLC Programming Manual Chapter 6: PLC Instructions
(d) Example
(35)CPRW (Compare Word Register) RR after operation: RR
Ù
(a) Function
The instruction executes comparison between WR1 and WR2 when the ST content
is ON (RR = 1), and sets “0” or “1” to Z1 according to the result of comparison.
WR1 < WR2 Z1 = 0
WR
≥
WR2 Z1 = 1
If the ST contact is OFF (RR = 0), the CPRW instruction is not executed. The content
of RR remains unchanged.
(b) Format
(c) Explanation
• After the execution of CPRW instruction, the contents of WR1 and WR2 remain
unchanged.
• A ST contact must be entered before the CPRW instruction.
• The CORW instruction is executed in intervals of “4 × n” msec while the ST contact
is ON.
(d) Example
A B Paradym31 Variable Name