Siemens SIMATIC S7-1200 Function Manual page 399

Tag
AllSlaveAutomaticState
NoSlaveSubstituteSetpoint
Heat.EnableTuning
Cool.EnableTuning
Config.InputPerOn
PID control
Function Manual, 03/2017, A5E35300227-AC
Data type Default
BOOL FALSE
BOOL FALSE
BOOL TRUE
BOOL FALSE
BOOL TRUE
Description
If this PID_Temp instance is used as master controller in a
cascade (Config.Cascade.IsMaster = TRUE), All-
SlaveAutomaticState = TRUE indicates that all slave con-
trollers are in automatic mode.
Tuning, manual mode or automatic mode of the master
controller can only be executed accurately if all slave con-
trollers are in automatic mode.
AllSlaveAutomaticState is only determined if you intercon-
nect the master controller and slave controller with the
Master and Slave parameters.
For details, see the Master parameter.
If this PID_Temp instance is used as master controller in a
cascade (Config.Cascade.IsMaster = TRUE), NoSlave-
SubstituteSetpoint = TRUE indicates that no slave control-
ler has activated its substitute setpoint.
Tuning, manual mode or automatic mode of the master
controller can only be executed accurately if no slave
controller has activated its substitute setpoint.
NoSlaveSubstituteSetpoint is only determined if you inter-
connect the master controller and slave controller with the
Master and Slave parameters.
For details, see the Master parameter.
Enabling of tuning for heating
Heat.EnableTuning must be set for the following tunings
(at the same time or prior to the start with Mode and
ModeActivate):
Pretuning heating
•
Pretuning heating and cooling
•
Fine tuning heating
•
This parameter is not automatically reset by the
PID_Temp instruction.
Enabling of tuning for cooling
Cool.EnableTuning must be set for the following tunings
(simultaneously with or prior to the start with Mode and
ModeActivate):
Pretuning cooling
•
Pretuning heating and cooling
•
Fine tuning cooling
•
Only effective if the cooling output and PID parameter
switching are activated ("Config.ActivateCooling" = TRUE
and "Config.AdvancedCooling" = TRUE).
This parameter is not automatically reset by the
PID_Temp instruction.
If InputPerOn = TRUE, the Input_PER parameter is used
for detecting the process value. If InputPerOn = FALSE,
the Input parameter is used.
Instructions
9.3 PID_Temp
399