Siemens SIMATIC S7-1200

Instructions
9.2 PID_3Step
PID control
Function Manual, 03/2017, A5E35300227-AC
355
Tag
Data type
Default
Description
Config.InvertControl BOOL FALSE Invert control logic
If InvertControl = TRUE, an increasing control deviation causes a
reduction in the output value.
Config.FeedbackOn BOOL FALSE If FeedbackOn = FALSE, a position feedback is simulated.
Position feedback is generally activated when Feed-
backOn = TRUE.
Config.FeedbackPerOn BOOL FALSE FeedbackPerOn is only effective when FeedbackOn = TRUE.
If FeedbackPerOn = TRUE, the analog input is used for the posi-
tion feedback (Feedback_PER parameter).
If FeedbackPerOn = FALSE, the Feedback parameter is used for
the position feedback.
Config.ActuatorEndStopOn BOOL FALSE If ActuatorEndStopOn = TRUE, the digital position feedback Actua-
tor_L and Actuator_H are taken into consideration.
Config.InputUpperLimit REAL 120.0 High limit of the process value
At the I/O input, the process value can be a maximum of 18%
higher than the standard range (overrange). An error is no longer
signaled due to a violation of the "Process value high limit". Only a
wire-break and a short-circuit are recognized and PID_3Step re-
acts according to the configured reaction to error.
InputUpperLimit > InputLowerLimit
Config.InputLowerLimit REAL 0.0 Low limit of the process value
InputLowerLimit < InputUpperLimit
Config.InputUpperWarning REAL +3.40282
2e+38
Warning high limit of the process value
If you set InputUpperWarning outside the process value limits, the
configur
ed absolute process value high limit is used as the warning
high limit.
If you configure InputUpperWarning within the process value limits,
this value is used as the warning high limit.
InputUpperWarning > InputLowerWarning
InputUpperWarning ≤ InputUpperLimit
Config.InputLowerWarning REAL -
3.402822
e+38
Warning low limit of the process value
If you set InputLowerWarning outside the process value limits, the
configured absolute process value low limit is used as the warning
low limit.
If you con
figure InputLowerWarning within the process value limits,
this value is used as the warning low limit.
InputLowerWarning < InputUpperWarning
InputLowerWarning ≥ InputLowerLimit
Config.OutputUpperLimit REAL 100.0 High limit of output value
For details, see OutputLowerLimit
Config.OutputLowerLimit REAL 0.0 Low limit of output value
If OutputPerOn = TRUE or FeedbackOn = TRUE, the range of
values from -100% to +100%, including zero, is valid. At -100%,
Output = -27648; at +100%, Output = 27648
If OutputPerOn = FALSE, the range of values from 0% to 100% is
valid. The valve is completely closed at 0% and completely opened
at 100%.