Siemens Simatic S7 Series User Manual

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Expansion Modules S7-200 PLCs are expandable by adding expansion modules.
Expansion modules with inputs and/or outputs are connected
to the base unit using a ribbon connector.
SF/DIAG
The ribbon connector is protected by a cover on the base unit.
Side-by-side mounting completely encloses and protects the
ribbon connector.
SF/DIAG
Mounting S7-200 PLCs can be mounted in one of two ways. A DIN clip
allows installation on a standard
DIN rail. The DIN clip snaps
open to allow installation and snaps closed to secure the
unit on the rail. The S7-200 can also be panel mounted using
installation holes located behind the access covers.
Din Rail
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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.