Siemens Simatic S7 Series System Manual

Installation
3.3 Installation and removal procedures
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
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3.3
Installation and removal procedures
3.3.1
Mounting dimensions for the S7-200 SMART devices
The CPU and expansion modules include mounting holes to facilitate installation on panels.
S7-200 SMART module
Width A (mm)
Width B (mm)
CPU SR20 and CPU ST20 90 45
CPU SR30 and CPU ST30
110
55
CPU CR40, CPU SR40, and CPU ST40
125
62.5
CPU CR60, CPU SR60 and CPU ST60
175
87.5
Expansion modules: EM 4AI, EM 8AI, EM 2AQ, EM 4AQ, EM 8DI, EM 8DQ, and
EM 8DQRLY
45 22.5
EM 8DI/8DQ and EM 8DI/8DQRLY
45
22.5
EM 16DI/16DQ and EM 16DI/16DQRLY
70
35
EM 2AI/1AQ and EM 4AI/2AQ
45
22.5
EM 2RTD, EM 4RTD
45
22.5
EM 4TC
45
22.5
EM DP01
70
35

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.