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Program Mode
The Function (FUN) Page
The Function (FUN) Page
FUN is short for function. The PC3’s four FUNs greatly extend the flexibility of the control
sources. Each FUN accepts input from any two control sources, performs a selectable function
on the two input signals, and sends the result as its output, which can be assigned like any other
control source. Using the FUNs involves defining them on the FUN page, then assigning one or
more of them as control sources. The FUN page looks like this:
There are three parameters for each FUN. Inputs a and b can be any control source from the
Control Source list. The control sources you want to combine are the ones you’ll assign as the
values for these parameters.
The Function parameter determines what mathematical function is applied to the two inputs.
When a FUN has been assigned as a control source, the PC3 reads the values of the two control
sources defined as Inputs a and b. It then processes them according to the setting for the
Function parameter, and the resulting value is the FUN’s output.
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