Process control instructions
962
Part III FP Instructions
SCALE_UINT
Scale UINT data
See also:
F282_SCAL (see page 468)
F283_DSC
AL (see page 471)
PLC types see page 1330
Variable Data type Function
uiInput Input signal
uiInputLowerLimit Lower limit of the input range
uiInputUpperLimit Upper limit of the input range
uiOutputLowerLimit Output value assigned to the lower limit of the input range (can
be higher than uiOutputUpperLimit)
uiOutputUpperLimit Output value assigned to the upper limit of the input range (can
be lower than uiOutputLowerLimit)
Output variable
UINT
Scaled output signal
Description
This instruction scales an unsigned INTEGER value between a lower and an upper limit to an
unsigned INTEGER output value. Use WITHIN_LIMITS (see page 111) to check if the input value
is within the specified limits.
Data types
Example
In this example the function has been programmed in ladder diagram (LD) and structured text (ST).
The same POU header is used for all programming languages.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
LD