
Floating Point Math Instructions
Ladder Logic (LAD) for S7-300 and S7-400 Programming
A5E00706949-01
8-11
8.4.3 EXP Establish the Exponential Value
Symbol
EXP
EN
OUT
IN
ENO
Parameter Data Type Memory Area Description
EN BOOL I, Q, M, L, D Enable input
ENO BOOL I, Q, M, L, D Enable output
IN REAL I, Q, M, L, D
or constant
Input value: floating-point
OUT REAL I, Q, M, L, D Output value: exponential value
of the floating-point number
Description
EXP
establishes the exponential value of a floating-point number on the basis e
(=2,71828...).
See also Evaluating the Bits of the Status Word.
Status word
BR CC 1 CC 0 OV OS OR STA RLO /FC
writes: x x x x x 0 x x 1
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