Siemens SIMATIC NET S7-300 User Manual

5 Configuring Communication Connections
A-127
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
5.5.2 Specifying ISO-on-TCP Addresses
Address Parameters
A connection is specified by the local and remote connection endpoint.
 Local addresses:
Local IP address and local TSAP
(Transport Service Access Point)
 Remote addresses:
Remote IP address and remote TSAP
ISO-on-TCP
connection
MAC
address A
Ethernet station BEthernet station A
IP
address B
Remote
TSAP
Local
TSAP
Local
TSAP
Remote
TSAP
Figure 5-11 Sending and Receiving on One ISO-on-TCP Connection
The address parameters are configured with NCM S7 and saved in the CP
database. Modifications and extensions to the Industrial Ethernet network topology
do not therefore have any effect on the CPU user program.
Notice
When you configure the Ethernet CP and the Ethernet destination station, the
TSAPs of an ISO-on-TCP connection must cross match:
Remote TSAP (in Ethernet CP) = local TSAP (in destination station)
Local TSAP (in Ethernet CP) = remote TSAP (in destination station)

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)