Omron SYSMAC CP Series, User Manual

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11 High-speed Counters
11-14
CP2E CPU Unit Software User’s Manual(W614)
11-3 High-speed Counter Interrupts
High-speed counter interrupts can be used with any model of CP2E CPU Unit.
This function counts input pulses with the CPU Unit ’ s built-in high-speed counter and executes an inter-
rupt task when the count reaches the preset value or falls within a preset range (target-value or zone
comparison). An interrupt task between 0 and 15 can be allocated with the CTBL instruction.
11-3-1 Overview
Target value comparison Range comparison
The specified interrupt program can be started when the
present value of the high-speed counter matches a target
value. The specified interrupt program can be started when the
present value of the high-speed counter enters a set range.
END
END
Cycle
Rot a ry Encoder
B u ilt-in inp u t
Pre s ent v a l u e Pre s ent v a l u e m a tche s s et t a rget v a l u e
Time
Interr u pt t as k
L a dder di a gr a m
Interr u pt occ u r s
Cyclic t as k s
(l a dder progr a m s )
I/O refre s h
0
Instr u ction exec u tion
condition
CTBL instr u ction exec u ted
High-speed
Co
u nter Unit
High-speed co u nter PV
Target v al u e 1
Target v al u e 2
Co u nting ena b led
Time
Cyclic task
exec
u tion
Cyclic task
exec
u tion
Cyclic task
exec
u tion
Interr u pted Interr u pted
Interr u pt task
exec u tion
Interr u pt task
exec u tion
0
Instr u ction exec u tion
condition
CTBL instr u ction exec u ted
High-speed
Co
u nter Unit
High-speed co u nter PV
Target v al u e range
Co u nting ena b led
Cyclic task
exec
u tion
Cyclic task
exec
u tion
Cyclic task
exec
u tion
Interr u pted Interr u pted
Interr u pt task
exec u tion
Interr u pt task
exec u tion
Time