LOGO! Manual
A5E00380835-01
228
Parameter p (number of decimals)
Applies only to the AQ, PV, SP, Min and Max values dis-
played in a message text.
Timing diagram
The nature, manner and speed with which the AQ changes
depend on the parameters KC and TI. Thus, the course of
AQ in the diagram is merely an example. A control action is
continuous; therefore the diagram portrays just an extract.
1. A disturbance causes the PV to drop, as Dir is
positioned upwards, AQ increases until PV corresponds
again to SP.
2. A disturbance causes the PV to drop, as Dir is
positioned upwards, AQ decreases until PV
corresponds again to SP.
Dir is coordinated to the basic conduct of a control loop.
As the basic conduct of a control loop does not really
alter, the change in Dir here is shown for the purposes
of clarification.
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