Allen-Bradley LOGIX 5000 User Manual

Chapter 1
Process Control Instructions
168 Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
CV1ROCNegAlarm BOOL CV1 rate of change alarm indicator.
TRUE when the calculated rate of
change for CV1 exceeds
CV1ROCNegLimit.
CV2ROCNegAlarm BOOL CV2 rate of change alarm indicator.
TRUE when the calculated rate of
change for CV2 exceeds
CV2ROCNegLimit.
CV3ROCNegAlarm BOOL CV3 rate of change alarm indicator.
TRUE when the calculated rate of
change for CV3 exceeds
CV3ROCNegLimit.
SP REAL Current setpoint value. The value of
SP is used to control CV when in the
Auto or the PV Tracking mode,
scaled in PV units.
SPPercent REAL The value of SP expressed in percent
of span of PV.
SPPercent = ((SP − PVEUMin ) *
100) / PVSpan.
PV Span calculation: PVSpan =
( PVEUMax − PVEUMin )
SPHAlarm BOOL SP high alarm indicator. TRUE when
the SP ≥ SPHLimit.
SPLAlarm BOOL SP low alarm indicator. TRUE when
the SP ≤ SPLLimit.
PVPercent REAL PV expressed in percent of span.
PVPercent = (( PV − PVEUMin ) *
100) / PVSpan
PV Span calculation: PVSpan =
( PVEUMax − PVEUMin )
E REAL Process error. Difference between SP
and PV, scaled in PV units.
EPercent REAL The error expressed as a percent of
span.
CV1WindupHOut BOOL CV1 Windup high indicator.
TRUE when either a SP high or CV1
high/low limit has been reached.
This signal will typically be used by
the WindupHIn input to limit the
windup of the CV1 output on a
primary loop.
CV2WindupHOut BOOL CV2 Windup high indicator.
TRUE when either a SP high or CV2
high/low limit has been reached.
This signal will typically be used by
the WindupHIn input to limit the
windup of the CV2 output on a
primary loop.

Allen-Bradley LOGIX 5000 Specifications

General

Brand	Allen-Bradley
Model	LOGIX 5000
Category	Controller
Language	English