Siemens SIMATIC NET S7-300 User Manual

D Glossary
A-304
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Interconnection
General: Logical data connection between two objects.
With PROFINET CBA in SIMATIC iMap: Connection between two technological
functions. An output is interconnected with an input of the same type.
Interconnections are represented in SIMATIC iMap by lines.
Network view
With PROFINET CBA: View of the devices and the networks (Ethernet,
PROFIBUS) in SIMATIC iMap.
Plant view
With PROFINET CBA: View of the technological functions of the automation
system and its interconnections in SIMATIC iMap. One chart is displayed in the
plant view.
PROFIBUS device
In PROFINET CBA: A PROFIBUS device has only one PROFIBUS attachment
as a slave. It does not take part directly in PROFINET communication but is
linked using a proxy PROFINET device.
PROFINET
Within the framework of Totally Integrated Automation (TIA), PROFINET is the
consistent continuation of:
- PROFIBUS DP, the established fieldbus, and
- Industrial Ethernet, the communications bus for the cell level.
The experience gained in both systems was and is integrated in PROFINET.
PROFINET as an Ethernet-based automation standard from PROFIBUS
International (previously PROFIBUS Users Organization e.V.) defines a
heterogeneous communication, automation and engineering model.
PROFINET device
With PROFINET CBA: A device on Ethernet is a PROFINET device. A
PROFINET device can also have a PROFIBUS attachment as master and proxy
PROFINET device for PROFIBUS devices.
PROFINET device, proxy
A PROFINET device that has the role of the master for PROFIBUS devices. This
allows PROFIBUS slaves to be included in PROFINET communication.

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)