Siemens S7-1200 - Page 152

Device configuration
5.7 Configuring the CPU for communication
S7-1200 Programmable controller
152 System Manual, 03/2014, A5E02486680-AG
Table 5- 6 Parameters for the multiple CPU connection
Parameter
Definition
Address
Assigned IP addresses
General
End point
Name assigned to the partner (receiving) CPU
Interface
Name assigned to the interfaces
Subnet
Name assigned to the subnets
Interface type
S7 communication only : Type of interface
Connection type
Type of Ethernet protocol
Connection ID
ID number
Connection data
Local and Partner CPU data storage location
Establish active
connection
Radio button to select Local or Partner CPU as the active connection
Address
details
End point
S7 communication only : Name assigned to the partner (receiving) CPU
Rack/slot
S7 communication only : Rack and slot location
Connection resource S7 communication only : Component of the TSAP used when configuring an
S7 connection with an S7-300 or S7-400 CPU
Port (decimal):
TCP and UPD: Partner CPU port in decimal format
TSAP
1
and Subnet ID: ISO on TCP (RFC 1006) and S7 communication: Local and partner CPU
TSAPs in ASCII and hexadecimal formats
1
When configuring a connection with an S7-1200 CPU for ISO-on-
TCP, use only ASCII characters in the TSAP extension
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.