Siemens SIMATIC NET S7-300 User Manual

3 Operating the Ethernet CP with
A-76
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Note
You can query the IP address actually being used with NCM S7 Diagnostics.
“Port Parameters” Tab
Here, you can, when necessary, make fixed network settings for the transmission
properties of every available port. As default, “Automatic Setting” is selected and
this setting generally guarantees problem-free communication in most situations.
If problems occur in communication (for example, when connections are not
established or when there are often disturbances on the network), the reason may
be that the selected or automatic network settings are not suitable. You can then
select a network setting to suit your network configuration.

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)