320 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 DERV instruction calculates the amount of change of a signal over time in
per-second units.
Available Languages
Ladder Diagram
This instruction is not available for ladder diagram.
Function Block
Structured Text
DERV(DERV_tag);
Operands
Function Block
Operand Type Format Description
DERV tag DERIVATIVE structure DERV structure
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