Instructions
9.1 PID_Compact
PID control
256 Function Manual, 03/2017, A5E35300227-AC
CancelTuningLevel REAL 10.0 Permissible fluctuation of setpoint during tuning. Tun-
ing is not canceled until:
• Setpoint > CurrentSetpoint + CancelTuningLevel
or
• Setpoint < CurrentSetpoint - CancelTuningLevel
SubstituteOutput REAL 0.0 Substitute output value
When the following conditions are met, the substitute
output value is used:
• An error has occurred in automatic mode.
• SetSubstituteOutput = TRUE
• ActivateRecoverMode = TRUE
SetSubstituteOutput BOOL TRUE If SetSubstituteOutput = TRUE and ActivateRecover-
Mode = TRUE, the substitute output value configured
is output as long as an error is pending.
If SetSubstituteOutput = FALSE and ActivateRecov-
erMode = TRUE, the actuator remains at the current
output value as long as an error is pending.
If ActivateRecoverMode = FALSE, SetSubstituteOut-
put is not effective.
If SubstituteOutput is invalid (ErrorBits = 20000h), the
substitute output value cannot be output.
Config.InputPerOn BOOL TRUE If InputPerOn = TRUE, the Input_PER parameter is
used. If InputPerOn = FALSE, the Input parameter is
Config.InvertControl BOOL FALSE Invert control logic
If InvertControl = TRUE, an increasing control devia-
tion causes a reduction in the output value.
Config.InputUpperLimit REAL 120.0 High limit of the process value
Input and Input_PER are monitored to ensure adher-
ence to this limit.
At the I/O input, the process value can be a maximum
of 18% higher than the standard range (overrange).
This pre-assignment ensures that 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 recog-
nized and PID_Compact reacts according to the con-
figured reaction to error.
InputUpperLimit > InputLowerLimit
Config.InputLowerLimit REAL 0.0 Low limit of the process value
Input and Input_PER are monitored to ensure adher-
ence to this limit.
InputLowerLimit < InputUpperLimit
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