Siemens SIMATIC S7-300 Module data Technical Data

Communication
3.2 Communication services
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
3-11
Routing network nodes: MPI - DP
Gateways between subnets are routed in a SIMATIC station that is equipped with interfaces
to the respective subnets. The figure below shows CPU 1 (DP master) acting as router for
subnets 1 and 2.
Subnet 1 (e.g. MPI)
Subnet 2 (e.g. PROFIBUS DP)
PG
S7-300
CPU (DP master)
S7-300
CPU (DP slave)
The figure below shows the access to an Ethernet subnet. CPU 1 (315-2 DP, for example) is
the router for subnet 1 and 2; CPU 2 is the router for subnet 2 and 3.

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)