Math Functions

Algorithm—A pre-configured algorithm is available for easy implementation.

This includes the capability of using a Ratio and Bias with any input.

You can select from the following menu:

Feedforward Summer—Uses either input, followed by a Ratio/Bias calculation,

summed directly with the computed PID output value to provide a resultant

output to the final control element (standard feature).

Weighted Average —Computes the weighted average of a PV or SP for

the control algorithm from two inputs (standard feature).

Feedforward Multiplier—Uses any input, multiplied by the calculated PID

output to provide a resultant output which is sent to the final control

element (standard feature).

Summer/Subtractor—Will add or subtract inputs with the result used as

the derived PV.

Multiplier/Divider—Uses the analog inputs to calculate a derived PV.

Available with or without Square Root.

Input High/Low Select—Specifies the PV input as the higher or lower of

the two inputs.