Siemens SIMATIC S7-1200 Function Manual page 323

Tag
Config.InputUpperWarning
Config.InputLowerWarning
Config.OutputUpperLimit
Config.OutputLowerLimit
Config.SetpointUpperLimit
Config.SetpointLowerLimit
Config.MinimumOnTime
Config.MinimumOffTime
PID control
Function Manual, 03/2017, A5E35300227-AC
Data type Default
REAL +3.402822e+38 Warning high limit of the process value
REAL -3.402822e+38
REAL 100.0
REAL 0.0
REAL +3.402822e+38 High limit of setpoint
REAL - 3.402822e+38 Low limit of the setpoint
REAL 0.0
REAL 0.0
Description
If you set InputUpperWarning outside the process value
limits, the configured 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
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 configure InputLowerWarning within the process value
limits, this value is used as the warning low limit.
InputLowerWarning < InputUpperWarning
InputLowerWarning ≥ InputLowerLimit
High limit of output value
For details, see OutputLowerLimit
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%.
If you set SetpointUpperLimit outside the process value
limits, the configured absolute process value high limit is
preassigned as the setpoint high limit.
If you configure SetpointUpperLimit within the process value
limits, this value is used as the setpoint high limit.
If you set SetpointLowerLimit outside the process value
limits, the configured absolute process value low limit is
preassigned as the setpoint low limit.
If you set SetpointLowerLimit within the process value limits,
this value is used as the setpoint low limit.
Minimum ON time
Minimum time in seconds for which the servo drive must be
switched on.
Config.MinimumOnTime is only effective if Output_UP and
Output_DN are used (Config.OutputPerOn = FALSE).
Minimum OFF time
Minimum time in seconds for which the servo drive must be
switched off.
Config.MinimumOffTime is only effective if Output_UP and
Output_DN are used (Config.OutputPerOn = FALSE).
Instructions
9.2 PID_3Step
323