This module provides PID control capabilities.
This is the configuration window for the module, which can be opened by clicking the Control > PID Control Configuration menu item.
The left listbox  lists all currently defined PID controllers. It is possible to add  or remove  controllers. Every controller is identified by its name , which can be changed using the rename button .
This PID control module uses the academic PID control transfer function. This transfer function has the following time-domain form:
Additionally, the controller implements an integrator anti-windup.
Process Variable, Setpoint and PID Control Output Variable can be set at ,  and , respectively. Both the current PV value, SP value and Output Value are displayed at ,  and , respectively.
The configuration window also offers the possibility to switch between manual and automatic mode . This means, that in manual mode, only the manual output value  is used for the control output, while in automatic mode the PID gains and the spcified controller rate  are used to calculate the control output. The output of the controller is limited to minimum/maximum values .
 shows the currently measured maximum deviations of the process variable from the setpoint and can be reset using the reset button .
The graphs on the right show the process variable/setpoint values , the difference between them  and the resulting control output .
Changes are applied and saved immediately.
Please be aware, that changing the PV  or SP  variable, or changing the PID parameters  results in a controller reset (meaning that after such an action the integral and derivative action of the controller are reset to zero).