Omron CJ1G-CPUxx, Instructions Manual

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High-speed Counter/Pulse Output Instructions Section 3-21
Flags
Examples
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Example 1
When CIO 000000 turns ON in the following programming example,
CTBL(882) registers a range comparison table for high-speed counter 0 and
starts comparison. When CIO 000001 turns ON, PRV(881) reads the range
comparison results at that time and stores them in CIO 0100.
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Example 2
When CIO 000100 turns ON in the following programming example, PRV(881)
reads the frequency of the pulse being input to high-speed counter 0 at that
time and stores it as a hexadecimal value in D00200 and D00201.
3-21-3 REGISTER COMPARISON TABLE: CTBL(882) (CJ1M-CPU22/
CPU23 Only)
Purpose CTBL(882) is used to register a comparison table and perform comparisons
for a high-speed counter PV. Either target value or range comparisons are
possible. An interrupt task is executed when a specified condition is met.
This instruction is supported by the CJ1M-CPU22/CPU23 CPU Units only.
Ladder Symbol
Name Label Operation
Error Flag ER ON if the specified range for P or C is exceeded.
ON if the combination of P and C is not allowed.
ON if reading range comparison results is specified even
though range comparison is not being executed.
ON if reading the output frequency is specified for any-
thing except for high-speed counter 0.
ON if specified for a port not set for a high-speed counter.
ON if executed for a port not set for an interrupt input in
counter mode.
@CTBL
#0000
#0001
D00100
000000
@PRV
#0010
#0002
0100
000001
Range comparsion table
registration and comparison start
High-speed counter input 0
Read range comparison results
High-speed counter input 0
PRV
#0010
#0003
D00200
000100
High-speed counter input 0
Read input frequency
CTBL(882)
P
C
TB
P: Port specifier
C: Control data
TB: First comparison table word