NETLink
®
Switch
23
5.1.3
PPI configuration
Basically, the same applies to PPI configuration as to MPI configu-
ration. However, the network-related parameters are more exten-
sive.
In addition to the parameters transmission rate and highest sta-
tion address mentioned in Section 5.1.1, PROFIBUS also has a pa-
rameter field for selecting the bus profile and bus parameters:
According to current knowledge, all S7-200 CPUs of the product
line 22x should be able to communicate with ‘
Advanced PPI.
’ It is
recommended to use ‘
Advanced PPI
’ if possible.
5.2
Local connection (TCP parameterization)
There are three basic ways of parameterizing NETLink
®
Switch at
the TCP end:
•
Parameterization via ‘Set
PG/PC interface
Existing stations can be reparameterized using the ‘
Change
’
button
•
Parameterization via the ‘
NETLink PRO Family configuration
’
tool (see Section 6).
•
Parameterization via the web interface of the NETLink
®
Switch
(see Section
7.3
).
If the NETLink
®
Switch is configured via the NETLink-S7-NET
driver, the following points must be considered:
If the NETLink
®
Switch is active on the bus when reparameteriza-
tion is required (e.g. a variable table or block is being viewed),
reparameterization is not performed.
!
Normally the baud rate
cannot be detected auto-
matically at PPI systems.