Polyline; Compatibility With Cpu And Fw; Description Polyline - Siemens SIMATIC S7-1200 Function Manual

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Instructions

9.5 Polyline

The following table shows which version of Polyline can be used on which CPU:

The Polyline instruction maps input value Input onto output value Output using a

characteristic curve. The characteristic curve is defined as a polyline with maximum 50

points. Linear interpolation is performed between the points. You can fit the polyline to the

desired characteristic curve using the number and configuration of the points.

The Polyline instruction can be used, for example, to linearize non-linear characteristics of

sensor or actuators.

Interpolation calculation

Polyline calculates the output value at the Output parameter for the input value at the Input

parameter that lies between point values x

interpolation is calculated according to the following formula:

With parameter Reset = TRUE, an alternative output value can also be specified using the

SubstituteOutput parameter.

V4.2 or higher

V2.0 or higher

with a linear interpolation. The linear

Function Manual, 03/2017, A5E35300227-AC

Simatic s7-1500