Siemens Simantic Net NCM for Industrial Ethernet S7 - Manual (Page 94)

Configuring Communication Connections
94
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
In both projects, the same connection name must be configured in the
properties of the connection. The connection name is used as a textual
reference when the projects are merged. Based on the connection name it is
possible to assign the connection partner and synchronize the connection
properties.
Before the projects are merged, such connections are ”unspecified
connections” in terms of addressing; in other words, the partner addresses
remain empty.
Unspecified Connections
Connections to an as yet unknown device (for example a diagnostic unit) are
configured as “unspecified” connections. They can be specified later in the
Properties dialog.
You can create an unspecified connection simply by selecting station “unspecified”
for the connection partner when you create the connection. The unspecified
connection can be used in two ways (explained below based on the example of an
ISO-on-TCP connection (ISO transport and TCP connections are analogous):
S
Declare readiness for communication – passive connection establishment
The connection establishment is then set to passive (see settings in the
General tab).
The address setting for the ISO-on-TCP connection is then as follows:
The remote IP address is 0.0.0.0 and the remote TSAP is empty; in other
words, they are not relevant for the CP. When the connection is established,
any partner is accepted (partner = connection name that addresses the CP with
the correct IP address and TSAP).
It is also possible to use a partial specification; in other words, communication
is permitted with any partner that matches the specified TSAP.
S
Connection to a specific station in any project
The address setting for the ISO-on-TCP connection is then as follows:
You can specify the remote IP address and the port of any destination station.
The destination station can be in the current STEP 7 project or in another
project.
Use this method if you have not created a substitute object for the partner
station, for example SIMATIC S5, in the current project.
The following table lists the possible options.
Table 4-2
Meaning for Connection
Establishment
IP Address /
MAC Address
TSAP / Port Possible Connection
Establishment
by any partner empty empty passive
by any partner via specific TSAP empty specified passive
to or by a specific partner specified specified active / passive