Omron SYSMAC CP2E-E D Series User Manual

11-19
11 High-speed Counters
CP2E CPU Unit Software User’s Manual(W614)
11-3 High-speed Counter
Interrupts
11
11-3-2 Present Value Comparison
Precautions for Correct UsePrecautions for Correct Use
• There are restrictions on the maximum response frequencies of the high-speed counters
when using target matching.
Use the counters for target matching under the frequencies in the following table.
If the pulse frequencies input to the high-speed counters are higher than those in the table,
target matching may be omitted.
• When using target matching, the interval between interrupts for target matches must be
longer than 3 ms plus the sum of execution time for interrupt tasks that may possibly happen
at the same time.
The sum of execution time for interrupt tasks in one cycle is stored in A442.
The specified interrupt task is executed when the high-speed counter PV is within the range defined by
the upper and lower limit values.
• The comparison conditions (upper and lower limits of the range) are registered in the comparison
table along with the corresponding interrupt task number. The specified interrupt task will be exe-
cuted once when the high-speed counter PV is in the range (Lower limit
≤ PV ≤ Upper limit).
• A total of 6 ranges (upper and lower limits) are registered in the comparison table.
• The ranges can overlap.
• A different interrupt task can be registered for each range.
• The counter PV is compared with the 6 ranges once each cycle.
• The interrupt task is executed just once when the comparison condition goes from unmet to met.
Enabling/Disabling
pulse outputs
Counter numbers for
target matching
Increment pulse
Pulse plus direction
Up and down pulses
Differential phase (×4)
Disabling pulse
outputs or enabling 3-
axes or less pulse out-
puts
− 100kHz max. 50kHz max.
Enabling 4-axes pulse
outputs
Only one point 100kHz max. 50kHz max.
More than two points 100kHz max. 40kHz max.
Range Comparison
No.2 No.1 No.1 No.2
High-speed counter PV
Comparison is executed
regardless of the order of
the ranges in the table.
Upper limit 1
Lower limit 1
Upper limit 2
Lower limit 2
Interrupt task number to execute
Time
Comparison table
Upper limit 1
Lower limit 1
Interrupt task = 1
Upper limit 2
Lower limit 2
Interrupt task = 2

Omron SYSMAC CP2E-E D Series Specifications

General

Brand	Omron
Model	SYSMAC CP2E-E D Series
Category	Computer Hardware
Language	English