Siemens SIMATIC S7-300 Module data Technical Data Manual

Communication
3.2 Communication services
CPU 31xC and CPU 31x, Technical Data
3-14 Manual, 01/2006 Edition, A5E00105475-06
Routing: Example of a TeleService application
The figure below shows the example of an application for remote maintenance of an S7
station using a PG. The connection to other subnets is here established via modem
connection.
The lower section of the figure shows how to configure this in STEP 7.
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Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)