Siemens SIMATIC S7 System Manual page 329

Parameter and type
Input_PER IN
ManualEnable IN
ManualValue IN
Reset IN
ScaledInput OUT
Output OUT
1
Output_PER OUT
1
Output_PWM OUT
1
SetpointLimit_H OUT
SetpointLimit_L OUT
InputWarning_H OUT
InputWarning_L OUT
State OUT
Error OUT
The outputs of the Output, Output_PER, and Output_PWM parameters can be used in parallel.
1
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
Data type Description
Word Analog process value (optional). Default value: W#16#0
You must also set sPid_Cmpt.b_Input_PER_On = TRUE.
Bool Enables or disables the manual operation mode. Default value: FALSE
On the edge of the change from FALSE to TRUE, the PID controller

switches to manual mode, State = 4, and sRet.i_Mode remains
unchanged.
On the edge of the change from TRUE to FALSE, the PID controller

switches to the last active operating mode and State = sRet.i_Mode.
Real Process value for manual operation. Default value: 0.0
Bool Restarts the controller. Default value: FALSE
If Reset = TRUE, the following applies:
Inactive operating mode

Input value = 0

Integral part of the process value = 0

Intermediate values of the system are reset (PIDParameter is

retained)
Real Scaled process value. Default value: 0.0
Real Output value. Default value: 0.0
Word Analog output value. Default value: W#16#0
Bool Output value for pulse width modulation. Default value: FALSE
Bool Setpoint high limit. Default value: FALSE
If SetpointLimit_H = TRUE, the absolute upper limit of the setpoint is
reached. Default value: FALSE
Bool Setpoint low limit. Default value: FALSE
If SetpointLimit_L = TRUE, the absolute lower limit of the setpoint is
reached. Default value: FALSE
Bool If InputWarning_H = TRUE, the process value reached or exceeded the
upper warning limit. Default value: FALSE
Bool If InputWarning_L = TRUE, the process value reached the lower
warning limit. Default value: FALSE
Int Current operating mode of the PID controller. Default value: 0
Use sRet.i_Mode to change the mode.
State = 0: Inactive

State = 1: Pretuning

State = 2: Manual fine tuning

State = 3: Automatic mode

State = 4: Manual mode

DWord Error message Default value: DW#16#0000 (no error)
102BTechnology instructions
9.2 PID control
329