Siemens S7-1200 System Manual page 152

Device configuration
5.7 Configuring the CPU for communication
Table 5- 6 Parameters for the multiple CPU connection
Parameter
Address
General End point
Interface
Subnet
Interface type
Connection type
Connection ID
Connection data
Establish active
connection
Address End point
details
Rack/slot
Connection resource
Port (decimal):
TSAP
1
When configuring a connection with an S7-1200 CPU for ISO-on-TCP, use only ASCII characters in the TSAP extension
1
for the passive communication partners.
Transport Service Access Points (TSAPs)
Using TSAPs, ISO on TCP protocol and S7 communication allows multiple connections to a
single IP address (up to 64K connections). TSAPs uniquely identify these communication
end point connections to an IP address.
In the "Address Details" section of the Connection Parameters dialog, you define the TSAPs
to be used. The TSAP of a connection in the CPU is entered in the "Local TSAP" field. The
TSAP assigned for the connection in your partner CPU is entered under the "Partner TSAP"
field.
Port Numbers
With TCP and UDP protocols, the connection parameter configuration of the Local (active)
connection CPU must specify the remote IP address and port number of the Partner
(passive) connection CPU.
In the "Address Details" section of the Connection Parameters dialog, you define the ports to
be used. The port of a connection in the CPU is entered in the "Local Port" field. The port
assigned for the connection in your partner CPU is entered under the "Partner Port" field.
152
Definition
Assigned IP addresses
Name assigned to the partner (receiving) CPU
Name assigned to the interfaces
Name assigned to the subnets
S7 communication only
Type of Ethernet protocol
ID number
Local and Partner CPU data storage location
Radio button to select Local or Partner CPU as the active connection
S7 communication only
S7 communication only
S7 communication only
S7 connection with an S7-300 or S7-400 CPU
TCP and UPD: Partner CPU port in decimal format
and Subnet ID: ISO on TCP (RFC 1006) and S7 communication: Local and partner CPU
TSAPs in ASCII and hexadecimal formats
: Type of interface
: Name assigned to the partner (receiving) CPU
: Rack and slot location
: Component of the TSAP used when configuring an
System Manual, 03/2014, A5E02486680-AG
S7-1200 Programmable controller