Omron CS1W-CT021, Operation Manual

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Section 1-1
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Noise Filtering For the purpose of suppressing noise on the signal lines A and B of every Counter
and on the Digital Input lines noise filters can be used. Noise filters can be config-
ured independently from each other for Counters 1&2, Counters 3&4, Digital
Inputs 0&1 and Digital Inputs 2&3. The cut-off frequencies for the signal lines A
and B can be set to:
•
10 kHz
•
50 kHz (default)
•
500 kHz
For the Digital Inputs 10 kHz and 50 kHz (default) noise filters can be configured.
Refer to 3-7-4
"Noise Filtering" .
Run-time Configurable Configuration settings of the Unit can be changed at Run-time by using the IOWR-
instruction to be able to quickly adjust to changing application needs without the
need of restarting the Unit or stopping the Counters.
Interrupt Support All Outputs and the 4 Digital Inputs can be configured to generate interrupts to the
PLC in order to have a minimal response time enabling fast control of applications.
Generating interrupts is only possible when the High-speed Counter Unit is
mounted on a CPU-backplane.
Support Software The Unit can be configured by using CX-Programmer Support Software or a Pro-
gramming Console.
Comparison with
C200H-CT021 For those users who are familiar with the C200H-CT021 High-speed Counter Unit,
the predecessor of the CS1W-CT021/CT041 High-speed Counter Units, there is a
quick comparison overview in the appendix A
“Comparison with C200H-CT021”.
Quick Start Up Reference
Guide For a quick overview of all the features and functions that the High-speed Counter
Unit offers to you, refer to 1-4
"Quick Start Up Reference Guide" . This section also
contains references to the particular section(s) in the Manual where you can read
more detailed information about specific features and functions of the High-speed
Counter Unit.
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