Ceil And Floor (Generate Next Higher And Lower Integer From Floating-Point Number) Instructions - Siemens S7-1200 System Manual

Basic instructions
7.7 Conversion operations
7.7.4 CEIL and FLOOR (Generate next higher and lower integer from floating-point
number) instructions
Table 7- 86 CEIL and FLOOR instructions
LAD / FBD SCL
out := CEIL(in);
out := FLOOR(in);
For LAD and FBD: Click the "???" (by the instruction name) and select a data type from the drop-down menu.
1
Table 7- 87 Data types for the parameters
Parameter Data type
IN Real, LReal
OUT SInt, Int, DInt, USInt, UInt, UDInt, Real, LReal
Table 7- 88 ENO status
ENO Description
1 No error
0 IN is +/- INF or +/- NaN
250
Description
Converts a real number (Real or LReal) to the closest integer
greater than or equal to the selected real number (IEEE "round
to +infinity").
Converts a real number (Real or LReal) to the closest integer
smaller than or equal to the selected real number (IEEE "round
to -infinity").
System Manual, 03/2014, A5E02486680-AG
Description
Floating point input
Converted output
Result OUT
Valid result
+/- INF or +/- NaN
S7-1200 Programmable controller