Rockwell Automation Publication 1756-RM006K-EN-P - November 2018 319
Chapter 3
Filter
The Filter instructions include these instructions:
Available Instructions
Ladder Diagram
This instruction is not available in Ladder Diagram
Function Block and Structured Text
DERV HPF LDL2 LPF NTCH
If you want to Use this instruction
Calculate the amount of change of a signal over time in
per-second units.
DERV
Filter input frequencies that are below the cutoff frequency. HPF
Filter with a pole pair and a zero pair. LDL2
Filter input frequencies that are above the cutoff frequency. LPF
Filter input frequencies that are at the notch frequency. NTCH
See also
Drives Instructions on page 263
Logical and Move Instructions on page
401
Process Control Instructions on page 19
Select/Limit Instructions on page 349
Statistical Instructions on page 381
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