Siemens Simatic S7 Series System Manual

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

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.