Yaskawa YASNAC PC NC PLC Programming Manual - Manual (Page 62)

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YASNAC PCNC PLC Programming Manual Chapter 6: PLC Instructions
(c) Explanation
• It is not allowed to enter a contact before the CMP instruction. If a contact must be
entered, use the CPI instruction.
• The CMP instruction is executed in intervals of “4 × n” msec.
(d) Example
(13)CPI (Compare) RR after operation: RR
Ù
(a) Function
When the ST contact is ON (RR = 1), the instruction compares the numeric value to
the eight-bit data of the register or contact set and sets “1” to RR (RR = 1) if “Register
(contact)
≥
Numeric value”.
If the ST contact is OFF (RR = 0), the instruction is not executed. RR remains unchanged.
(b) Format
(c) Explanation
• A ST contact must be entered before the CPI instruction.
• The CPI instruction is executed in intervals of “4 × n” msec while the ST contact is
ON.
(d) Example
B A Paradym31 Variable Name