Siemens SIMATIC NET S7-300 User Manual

1 Communication via Ethernet CPs in S7 Stations
A-19
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
With the S7 CPs that support the PROFINET IO device mode, S7 stations
can be operated as ”intelligent” PROFINET IO devices on Industrial
Ethernet.
For more detailed information on PROFINET IO, refer to /20/ and /21/.
For PROFINET IO communication, TCP connections are used to set the
parameters and RT (real time) or IRT (isochronous real time) for the cyclic IO
data exchange.
 PROFINET CBA
- PROFINET CBA
An S7 station equipped with a CP capable of PROFINET CBA can be
interconnected as a PROFINET component in SIMATIC iMap.
For more detailed information on PROFINET CBA, refer to /19/.
In PROFINET CBA, interconnections with cyclic and acyclic transfer are used.
 HTML process control
With the CPs with IT functionality, you use the supplied functions and HTML
pages to query important system data using a Web browser (refer to the IT-CP
manual for more information /5/).
 File management and file access with FTP
The CPs with IT functionality (S7-400 / S7-300) provide additional functions for
FTP services.
You can use your S7 station both as an FTP client and as an FTP server (refer
to the manual of the IT-CP /5/).
- S7 Station as FTP Client
You can transfer data blocks from or to a file server.
- S7 Station as FTP Server
Another station, for example, a PC transfers data blocks to or from the S7
station the file system on the IT-CP.

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)