330 Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
This information applies to the CompactLogix 5370, ControlLogix 5570,
Compact GuardLogix 5370, GuardLogix 5570, Compact GuardLogix 5380,
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, and GuardLogix
5580 controllers.
The LPF instruction provides a filter to attenuate input frequencies that are above
the cutoff frequency.
Available Languages
Ladder Diagram
This instruction is not available in ladder diagram logic.
Function Block
Structured Text
LPF(LPF_tag);
Operands
Function Block
Operand Type Format Description
LPF tag FILTER_LOW_PASS Structure LPF structure