Allen-Bradley LOGIX 5000 User Manual

Process Control Instructions
Chapter 1
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018 195
Manual BOOL Manual mode indicator. TRUE when in the
Manual mode.
Override BOOL Override mode indicator. TRUE when in the
Override mode.
Hand BOOL Hand mode indicator. TRUE when in the
Hand mode.
DeltaT REAL Elapsed time between updates in seconds.
StepSizeUsed REAL Actual CV step size used for tuning.
GainTuned REAL The calculated value of the internal model
gain after tuning is completed.
TCTuned REAL The calculated value of the internal model
time constant after tuning is completed.
DTTuned REAL The calculated value of the internal model
deadtime after tuning is completed.
RespTCTunedS REAL The calculated value of the control variable
time constant in slow response speed after
tuning is completed.
RespTCTunedM REAL The calculated value of the control variable
time constant in medium response speed
after tuning is completed.
RespTCTunedF REAL The calculated value of the control variable
time constant in fast response speed after
tuning is completed.
AtuneOn BOOL Set True when auto tuning has been
initiated.
AtuneDone BOOL Set True when auto tuning has completed
successfully.
AtuneAborted BOOL Set True when auto tuning has been
aborted by user or due to errors that
occurred during the auto tuning operation.
AtuneStatus DINT Indicates the block tuning status.
AtuneFault BOOL Autotune has generated any of the
following faults.
Bit 0 of
AtuneStatus
AtunePVOutOfLimi
t
BOOL Either PV or the deadtime-step ahead
prediction of PV exceeds PVTuneLimit
during Autotuning. When True, Autotuning
is aborted.
Bit 1 of
AtuneStatus
AtuneModeInv BOOL The IMC mode was not Manual at start of
Autotuning or the IMC mode was changed
from Manual during Autotuning. When
True, Autotuning is not started or is
aborted.
Bit 2 of
AtuneStatus
AtuneCVWindupFa
ult
BOOL WindupHIn or WindupLIn is True at start of
Autotuning or during Autotuning. When
True, Autotuning is not started or is
aborted.
Bit 3 of
AtuneStatus
AtuneStepSize0 BOOL StepSizeUsed = 0 at start of Autotuning.
When True, Autotuning is not started.
Bit 4 of
AtuneStatus

Allen-Bradley LOGIX 5000 Specifications

General

Brand	Allen-Bradley
Model	LOGIX 5000
Category	Controller
Language	English