Yaskawa YASNAC PC NC PLC Programming Manual - Manual (Page 74)

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YASNAC PCNC PLC Programming Manual Chapter 6: PLC Instructions
(d) Example
(30)INRW (Increment Word Register) RR after operation: RR-
(a) Function
The instruction adds “+1” to the content of the double-length register when the ST
content is ON (RR = 1)
(b) Format
(c) Explanation
• A ST contact must be entered before the INRW instruction.
• The INRW instruction is executed in intervals of “4 × n” msec while the ST contact
is ON.
• There is no function to detect overflow. If the result of operation exceeds FFH, it
returns to 0H.
(d) Example
D
Paradym31 Variable Name