Siemens SIMATIC NET S7-300 User Manual

5 Configuring Communication Connections
A-120
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Default TSAPs
When configuring the local and remote TSAPs, there is a default value “ISO-1” for
the first connection between the two partners (can be changed). For a new
connection between the two partners, the default value “ISO-2” is proposed. With a
new connection to a new partner, the value ISO-1 is used again.
Addresses Tab - Unspecified ISO transport connection
If you select the partner type as “unspecified”, depending on your task, you can
enter address information about the communication partner here. The options
available to you are explained in detail in Section 5.3.1.
The Addresses tab shown here illustrates the situation in which the MAC address
and the remote TSAP were not specified. If you do not make any further settings,
this means that you are willing to accept a connection establishment request from
any communication partner.
Figure 5-8 Layout of the “Addresses” Tab of the Properties Dialog for an Unspecified Connection

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)