Commissioning Cont_C - Siemens SIMATIC S7-1200 Function Manual

Pid control
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Using PID basic functions
7.1 CONT_C
7.1.6

Commissioning CONT_C

Requirements
● The instruction and the technology object are loaded on the CPU.
Procedure
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
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.
212
"Send parameter to CPU" in the "Tuning" group.
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Function Manual, 03/2017, A5E35300227-AC
PID control

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