Allen-Bradley LOGIX 5000 Reference Manual page 299

Drives
SEC_ORDER_CONTROLLER Structure
Input Parameter Data Type
EnableIn BOOL
In REAL
Initialize BOOL
InitialValue REAL
Gain REAL
WLag REAL
WLead REAL
ZetaLead REAL
HighLimit REAL
LowLimit REAL
HoldHigh BOOL
HoldLow BOOL
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Description
Enable input. If cleared, the instruction does not execute and outputs are not
updated.
Default is set.
The analog signal input to the instruction.
Valid = any float
Default = 0.0
The instruction initialization command. When set, Out and internal
integrator are set equal to the value of InitialValue.
Default is cleared.
The initial value input. When Initialize is set, Out and integrator are set to
the value of InitialValue. The value of InitialValue is limited using HighLimit
and LowLimit.
Valid = any float
Default = 0.0
The proportional gain for the instruction. If the value is out of range, the
instruction limits the value and sets the appropriate bit in Status.
Valid = any float > 0.0
Default = minimum positive float
First order lag corner frequency in radians/second. If the value is out of
range, the instruction limits the value and sets the appropriate bit in Status.
Valid = see the Description section below for valid ranges
Default = 0.0
Second order lead corner frequency in radians/second. If the value is out of
range, the instruction limits the value and sets the appropriate bit in Status.
Valid = see the Description section below for valid ranges
Default = 0.0
Second order lead damping factor. If the value is out of range, the
instruction limits the value and sets the appropriate bit in Status.
Valid = 0.0 to 10.0
Default = 0.0
The high limit value. This is the maximum value for Out. If HighLimit
LowLimit, the instruction sets HighAlarm and LowAlarm, sets the
appropriate bit in Status, and sets Out = LowLimit.
Valid = LowLimit < HighLimit maximum positive float
Default = maximum positive float
The low limit value. This is the minimum value for Out. If HighLimit
LowLimit, the instruction sets HighAlarm and LowAlarm, sets the
appropriate bit in Status, and sets Out = LowLimit.
Valid = maximum negative float
Default = maximum negative float
The hold high command. When set, the value of the internal integrator is
not allowed to increase in value.
Default is cleared.
The hold low command. When set, the value of the internal integrator is not
allowed to decrease in value.
Default is cleared.
Chapter 2
LowLimit < HighLimit
299