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[03] HMI Curve

Function blocks

Description

This function block enables up to 15 X/Y value pairs to be defined. Linear interpolation is performed between the points. The X values must be ascending.

Example

  • Setpoint curve for a controller. For example, a differential pressure that should be different depending on the capacity.

  • Non-linear external correction influences.

Function block parameters

[P0] Activated

Activates or deactivates the processing of this function block.

[P1] Designation

Short text to improve functional identification.

[P2] Behavior when the defined area is exceeded

Defines the behavior if undefined mathematical areas are reached.

[P3] Output in case of mathematical fault

Activates the writing of an error output if e.g. division by 0.

Function block inputs

[I0] External release

Releasing the curve calculation.

[I1] Input signal

Analog input signal as X value for the calculation.

[I2] Output value, if there is no release

This value is written to the output of the function block if there is no release.

[I3] X/Y value pairs

15 activatable value pairs. The value pairs must be activated in ascending sequence. Gaps are not permitted.

Function block outputs

Output signal

Calculation result of the curve depending on the current input signal. The "Y" value.

Reference

FUP title

Curve

DOC-721644135