Siemens SIMATIC NET S7-300 User Manual

3 Operating the Ethernet CP with
A-79
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
3.3.5 “Substitute Objects” in the STEP 7 Project
Overview
Communication connections can be configured fully when the communications
partners are available in the current project. For the stations on the Ethernet
subnet, whose configuration data were not created in STEP 7 or whose
configuration data are not managed in the currently active project, the following
substitute objects can be created in the project:
 SIMATIC S5 stations
 PG/PC
 Other stations
- for devices of other manufacturers
- for SIMATIC S7 stations in another project (not necessary in a multiproject)
Note
Instead of creating substitute objects, you can also configure unspecified
connections for connections to the stations listed above.
In the Properties dialog of these connections, you must then specify the full
partner address. These partners do not appear in the NetPro plant view.
Ethernet subnet (1)
Plant
”Production 1”
SIMATIC S5
Third-party
device
S7-400/1
S7-400/5
Plant
”Production 2”
S7-400/2 S7-400/4
S7-400/3
PC/PG

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)