Siemens S7 User Manual

Page of 222
Configuring Communication Connections
112
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
Parameter
Description
Access
Local Endpoint
ID
The entry is identical to the Local ID parameter in the
connection list.
Selectable
Name
When you create the connection, a name is proposed here
along with a connection number as suffix.
With unspecified connections, use this box to identify the
partner.
Modifiable
Via CP
If the station contains more than one CP of the same type
connected to the same subnet, you can select the connection
route. –> “Route” button see Section 4.8.
If no CP is assigned (for example because the CP has been
deleted) “none” is displayed here.
Display only
Active Connection
Establishment
With this option, you specify whether the connection is
established by this S7 station. This is the default setting when
the address of the partner is specified.
ON: the connection is established actively.
OFF: the connection is established by the partner.
If you selected partner “unspecified” when you created the
connection, the option is deselected as default. If you activate
the option, you must also specify the address of the partner in
the “Addresses” tab.
Note:
Please note the effects on the mode. If you want to use the
FETCH or WRITE mode (refer to the ”Options” tab), the mode
must be set to ”Passive”.
Modifiable
Block Parameters
ID
This value must be entered as a block call parameter ID for
calling the FC  in the user program to identify the connection.
The ID changes if the local ID is changed.
Display only
LADDR
This value must be entered as a block call parameter ID for
calling the FC  in the user program to identify the connection.
Display only
Connection Name (Reference) – Only in Multiproject
If you create a connection to a partner in another project, that has not yet been
merged with the current multiproject, you must enter a connection name as
reference. Interproject connections can then be joined up based on this reference.
As soon as the connections have been brought together, the connection name
(reference) can no longer be entered.