Configuring a software controller
3.1 Overview of software controller
PID control
Function Manual, 03/2017, A5E35300227-AC
39
S7-300/400 Standard PID
Control
(PID Profes-
sional optional
package)
PID_CP PID_CP Continuous controller with pulse genera-
S7-300/400 PID_ES PID_ES Step controller for actuators with inte-
grating behavior
Distribute controller calls
S7-300/400 Modular PID
Control
(PID Profes-
sional optional
package)
A_DEAD_B - Filter interfering signal from control devi-
Scale analog input signal
Scale analog output signal
Delay output of input signal
S7-300/400 DEADBAND - Suppress small fluctuations to the pro-
Differentiate input signals over time
Monitor control deviation
Integrate input signals over time
First-order delay element
Second-order delay element
Limiting the manipulated variable
S7-300/400 LMNGEN_C - Determine manipulated variable for
S7-300/400 LMNGEN_S - Determine manipulated variable for step
Scale process value physically
S7-300/400 OVERRIDE - Switch manipulated variable from 2 PID
controllers to 1 actuator
S7-300/400 PUSLEGEN_M - Generate pulse for proportional actua-
S7-300/400 RMP_SOAK - Specify setpoint according to ramp /
Specify setpoint manually
Split manipulated variable range
Distribute controller calls
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