Omron CJ1W-CTL41-E, Инструкции по эксплуатации

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Output Control
Section 3-5
44
• Comparison Stoppage during Comparison of Ranges
The comparison operation stops for 1.5 ms from when the Counter Value
falls within the Upper Range Limit or Lower Range Limit for the Range Data.
However, the comparison does not stop for other Counters.
Set the Range Data considering the time when the comparison is stopped.
For example, for the Range table shown in the following diagram, approxi-
mately 4.8 counts occur during 1.5 ms when a 3.2 kHz pulse is input. This
means that comparison does not occur for Counter Values 101, 102, 103,
and 104. During this period, the Output set under the Output Pattern does
not turn ON even if the Counter Value is within the Range Data range.
Comparison starts again after this 1.5 ms has elapsed.
• Comparison Stoppage When IOWR and IORD-instructions Executed
Comparison is stopped during the execution of IOWR/IORD-instructions and
remains stopped until the processing of the instruction has been completed.
The Data Transfer Busy bit is ON during this time.
This stopping of comparison during the execution of IOWR/IORD-instruc-
tions affects Counter comparisons for all counters.
Set the Range Data considering that comparisons are stopped by execution
of IOWR/IORD-instructions.
Refer to section Section Appendix D
Comparison between CJ1W-CTL41-E
and other Counter Units for information on execution times for IOWR/IORD-
instructions.
100 101 102 103 104 105
104
100
103
101
105
102
3.2-kHz
pulse
Range Data 0
Upper Range
Limit
Lower Range
Limit
Counter Value
Range Data 1
Range Data 2
Upper Range
Limit
Lower Range
Limit
Upper Range
Limit
Lower Range
Limit
Comparison stops for 1.5 ms
Counter Value matches
Lower Limit (falls within
range)
During this period, the output set under the output
pattern will not be turned ON even if the value falls
within the Range Data range.