Siemens S7-1200 System Manual page 237
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Also See for S7-1200:
- Operating instructions manual (132 pages) ,
- Programming manualline (74 pages) ,
- Manual (46 pages)
Table of Contents
Table 7- 60
Data types for parameters
Parameter
Data type
IN, IN1
Real, LReal, Constant
IN2
SInt, Int, DInt, USInt, UInt,UDInt, Real, LReal, Constant
OUT
Real, LReal
Table 7- 61
ENO status
ENO
Instruction
1
All
0
SQR
SQRT
LN
EXP
SIN, COS, TAN
ASIN, ACOS
ATAN
FRAC
EXPT
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
Condition
No error
Result exceeds valid Real/LReal range
IN is +/- NaN (not a number)
IN is negative
IN is +/- INF (infinity) or +/- NaN
IN is 0.0, negative, -INF, or -NaN
IN is +INF or +NaN
Result exceeds valid Real/LReal range
IN is +/- NaN
IN is +/- INF or +/- NaN
IN is outside valid range of -1.0 to +1.0
IN is +/- NaN
IN is +/- NaN
IN is +/- INF or +/- NaN
IN1 is +INF and IN2 is not -INF
IN1 is negative or -INF
IN1 or IN2 is +/- NaN
IN1 is 0.0 and IN2 is Real/LReal (only)
Basic instructions
7.6 Move operations
Description
Inputs
EXPT exponent input
Outputs
Result (OUT)
Valid result
+INF
+NaN
-NaN
+/- INF or +/- NaN
-NaN
+INF or +NaN
+INF
+/- NaN
+/- INF or +/- NaN
+NaN
+/- NaN
+/- NaN
+NaN
+INF
+NaN if IN2 is Real/LReal,
-INF otherwise
+NaN
+NaN
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