Allen-Bradley LOGIX 5000 User Manual

Process Control Instructions
Chapter 1
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018 187
SPHLimit REAL SP high limit value, scaled in PV units.
If SPHLimit < SPLLimit or SPHLimit >
PVEUMax, set bit in Status.
Valid = SPLLimit to PVEUMax
Default = 100.0
SPLLimit REAL SP low limit value, scaled in PV units.
If SPLLimit < PVEUMin, or SPHLimit <
SPLLimit, set bit in Status and limit SP by
using the value of SPLLimit.
Valid = PVEUMin to SPHLimit
Default = 0.0
UseRatio BOOL Allow Ratio control permissive. Set TRUE to
enable ratio control when in CascadeRatio
mode.
Default = FALSE
RatioProg REAL Ratio Program multiplier, no units (for
example, scalar). Ratio and RatioOper are
set to this value when in Program control.
If RatioProg or RatioOper < RatioLLimit or
> RatioHLimit, set bit in Status and limit
value used for Ratio.
Valid = RatioLLimit to
RatioHLimit
Default = 1.0
RatioOper REAL Ratio Operator multiplier, no units (for
example, scalar). Ratio is set to this value
when in Operator control.
If RatioProg or RatioOper < RatioLLimit or
> RatioHLimit, set bit in Status and limit
value used for Ratio.
Valid = RatioLLimit to
RatioHLimit
Default = 1.0
RatioHLimit REAL Ratio high limit value, no units (for
example, scalar). Limits the value of Ratio
obtained from RatioProg or RatioOper.
If RatioLLimit < 0, set bit in Status and
limit to zero. If RatioHLimit < RatioLLimit,
set bit in Status and limit Ratio by using the
value of RatioLLimit.
Valid = RatioLLimit to
maximum positive float
Default = 1.0
RatioLLimit REAL Ratio low limit value, no units (for
example, scalar). Limits the value of Ratio
obtained from RatioProg or RatioOper.
If RatioLLimit < 0, set bit in Status and
limit to zero. If RatioHLimit < RatioLLimit,
set bit in Status and limit Ratio by using the
value of RatioLLimit.
Valid = 0.0 to RatioHLimit
Default = 1.0
CVFault BOOL Control variable bad health indicator. If
CVEU controls an analog output, then
CVFault will normally come from the
analog output's fault status.
If CVFault is TRUE, it indicates an error on
the output module, set bit in Status.
Default = FALSE
FALSE = Good Health
CVInitReq BOOL CV initialization request. While TRUE, set
CVEU to the value of CVInitValue. This
signal will normally be controlled by the In
Hold status on the analog output module
controlled by CVEU or from the InitPrimary
output of a secondary IMC loop.
Default = FALSE

Allen-Bradley LOGIX 5000 Specifications

General

Brand	Allen-Bradley
Model	LOGIX 5000
Category	Controller
Language	English