Siemens SIMATIC S7-1200 Function Manual page 413

Tag
CtrlParamsBackUp
.Cool.TdFiltRatio
CtrlParamsBackUp
.Cool.PWeighting
CtrlParamsBackUp
.Cool.DWeighting
CtrlParamsBackUp.Cool.Cycle
CtrlParamsBackUp
.Cool.ControlZone
CtrlParamsBackUp
.Cool.DeadZone
PIDSelfTune.SUT.Calculate-
ParamsHeat
PIDSelfTune.SUT.Calculate-
ParamsCool
PID control
Function Manual, 03/2017, A5E35300227-AC
Data type Default
REAL 0.2
REAL 1.0
REAL 1.0
REAL 1.0
REAL 3.402822e+38
REAL 0.0
BOOL FALSE
BOOL FALSE
Description
Saved derivative delay coefficient for cooling
Saved proportional action weighting factor for cooling
Saved derivative action weighting factor for cooling
Saved sampling time of the PID algorithm for cooling in
seconds
Saved control zone width for cooling
Saved dead zone width for cooling
The properties of the heating branch of the controlled
system are saved during pretuning for heating. If
SUT.CalculateParamsHeat = TRUE, the PID parameters
for heating (Retain.CtrlParams.Heat structure) are recalcu-
lated on the basis of these properties. This enables you to
change the parameter calculation method (PIDSelf-
Tune.SUT.TuneRuleHeat parameter) without having to
repeat the tuning.
SUT.CalculateParamsHeat is set to FALSE after the cal-
culation.
Only possible if the pretuning was successful
(SUT.ProcParHeatOk = TRUE).
The properties of the cooling branch of the controlled
system are saved during tuning for cooling. If
SUT.CalculateParamsCool = TRUE, the PID parameters
for cooling (Retain.CtrlParams.Cool structure) are recalcu-
lated on the basis of these properties. This enables you to
change the parameter calculation method (PIDSelf-
Tune.SUT.TuneRuleCool parameter) without having to
repeat the tuning.
SUT.CalculateParamsCool is set to FALSE after the cal-
culation.
Only possible if the pretuning was successful
(SUT.ProcParCoolOk = TRUE).
Only effective if Config.ActivateCooling = TRUE and Con-
fig
.AdvancedCooling = TRUE.
Instructions
9.3 PID_Temp
413