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12 Configuration
12.6.4 Starting autotuning (SO) on the device
This example describes the start of autotuning for a program controller. The following points
must be taken into consideration, checked and, if necessary, adjusted:
• Has the right controller type been configured?Check/set the controller's control directionIt
must be possible to appropriately influence the actual value, e.g. by changing the output
level in manual mode (closed control loop).Adjust the autotuning setting to match the type
of outputsBefore starting the autotuning for the PID structure, the derivative time must not
be set to 0. If the derivative time = 0, the PI structure is used for the optimization.Is the os-
cillation method appropriate for the case at hand, or do you need to switch to the step re-
sponse method? (not possible with every controller series)Only in the case of the step
response method: Meaningful specifications for the standby output and step sizeOnly in the
case of a continuous controller: The function of the output must have been configured for
the 1st controller output and scaled to 0 to 100 %.
(This means: Function = 1st controller output, zero point = 0, end value = 100)Only in the
case of three-step controller: Determine the actuator runtime and set it in the parameter lev-
el
Step Activity
1 The device is in the operating loop. Log in as a master from there
2 From the basic status, switch the program controller to manual mode
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