Using PID basic functions
7.1 CONT_C
PID control
212 Function Manual, 03/2017, A5E35300227-AC
Commissioning CONT_C
Requirements
● The instruction and the technology object are loaded on the CPU.
In order to manually determine the optimal PID parameter, proceed as follows:
1. Click the "Start" icon.
If there is no online connection, this will be established. The current values for the
setpoint, process value and output value are recorded.
2. Enter new PID parameters in the "P", "I", "D" and "Delay time" fields.
3. Click on the icon
"Send parameter to CPU" in the "Tuning" group.
4. Select the "Change setpoint" check box in the "Current values" group.
5. Enter a new setpoint and click in the "Current Values" group on the icon
.
6. Clear the "Manual mode" check box.
The controller works with the new PID parameters and controls the new setpoint.
7. Check the quality of the PID parameter to check the curve points.
8. Repeat steps 2 to 6 until you are satisfied with the controller results.
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