Ring Counter Function - Mitsubishi MELSEC-Q Series User Manual

12
COUNTER FUNCTION
12.3

Ring Counter Function

(1) Ring counter operation
12
- 4 12.3 Ring Counter Function
(a) When the ring counter is selected, counting is repeated within the range between
0 and " Ring counter upper limit value -1".
Pr.16
No overflow occurs when the ring counter is selected.
Md.3Count value
Subtraction
(b) When the ring counter is selected, the positioning range is from 0 to
" Positioning range upper limit value -1".
Pr.17
• When positioning control is performed in absolute system, the movement
amount is limited between 0 to "
Md.1 Current feed value
Subtraction
• When positioning control in incremental system, speed control, and JOG
operation are performed, the current feed value is repeatedly updated
between 0 and "
Current feed value
Md.1
Subtraction
Pr.16 Ring counter upper limit value
Addition
0
Positioning range upper limit value -1".
Pr.17
Pr.17 Positioning range
upper limit value
Addition
Positioning range upper limit -1".
Pr.17
Pr.17
Addition
0
0
Positioning range
upper limit value