Siemens Simatic S7 Series

Program instructions
7.8 Math
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
263
Example: MUL and DIV instructions
LAD
STL
Network 1
LD I0.0
MUL AC1, VD100
DIV VW10, VD200
1
VD100 contains: VW100 and VW102, and VD200 contains: VW200 and VW202.
Real number operations from the LAD example
IN1
IN2
OUT
MUL data
400
*
200
=
80000
Data address
AC1
VW102
VD100
remainder
quotient
DIV data
4000
/
41
=
23
97
Data address
VW202
VW10
VW200
VW202
VD200