Siemens SIMATIC S7-200 System Manual page 155

Example: Integer Math Instructions
Add
40 + 60 =
AC1 AC0 AC0
Example: Real Math Instructions
Add
4000.0 + 6000.0 = 10000.0
AC1 AC0
Network 1
LD
+I
*I
/I
Multiply
100 40
*
AC1
Network 1
LD
+R
*R
/R
Multiply
400.0 * 200.0
AC0 AC1 VD100
S7-200 Instruction Set
I0.0
AC1, AC0
AC1, VW100
VW10, VW200
=
20 800
VW100 VW100
I0.0
AC1, AC0
AC1, VD100
VD10, VD200
Divide
= 80000.0 4000.0
VD100 VD200
Chapter 6
Divide
/ =
4000 40
VW200 VW10 VW200
/ 41.0 = 97.5609
VD10 VD200
100
141