Ceiling And Floor Instructions - Siemens SIMATIC S7 System Manual

Table 7- 84 Data types for the parameters
Parameter Data type
IN Real, LReal
OUT SInt, Int, DInt, USInt, UInt, UDInt, Real, LReal
Table 7- 85 ENO status
ENO Description
1 No error
0 IN is +/- INF or +/- NaN
7.7.4

Ceiling and floor 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
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
Description
Floating point input
Rounded or truncated output
Result OUT
Valid result
+/- INF or +/- NaN
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").
100BBasic instructions
7.7 Convert
Description
Floating point input
Converted output
Result OUT
Valid result
+/- INF or +/- NaN
205