F285_LIMT

The function compares the input value at input s3_In with a lower and an upper limit. The lower limit is specified at input s1_Min, and the upper limit at input s2_Max. The result of the function is returned at output d as follows.

Parameters

Input

s1_Min (WORD, INT, UINT)

The area where the lower limit is stored or the lower limit data

s2_Max (WORD, INT, UINT)

The area where the upper limit is stored or the upper limit data

s3_In (WORD, INT, UINT)

The area where the input value is stored or the input value data

Output

d (WORD, INT, UINT)

the area where the output value data is stored

Remarks

• If the input value at s3_In < s1_Min, the lower limit at input s1_Min is returned at output d.

• If the input value at s3_In > s2_Max, the upper limit at input s2_Max is returned at output d.

• If the input value at s2_Max ³ s3_In ³ s1_Min, the input value s3_In is returned unchanged at output d.

• If you want to control the output value solely via the upper value s2_Max, set -32768 or 16#8000 for the lower limit s1_Min. To perform lower limit control only, set 32767 or 16#7FFF for the upper limit s2_Max.

  

  1.  (1) Output value d
  2.  (2) Input value s3
  3.  (3) Upper limit s2
  4.  (4) Lower limit s1

Error flags

sys_bIsOperationErrorHold (turns to TRUE and remains TRUE)

if the value at s1_Min > s2_Max

sys_bIsOperationErrorNonHold (turns to TRUE for one scan)

if the value at s1_Min > s2_Max

sys_bIsEqual (turns to TRUE and remains TRUE)

if the result of processing is between the upper and lower limits.