Preparations; Interfaces And Connection Type - Siemens SINAMICS S120 Function Manual

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13.2 Fundamentals

PROFINET interface X150 is preset as follows:

● Accessing the web server

Access via the PROFINET interface is deactivated as default setting in the web server.

● Communication

Communication via the PROFINET interface is always established via the secure HTTPS

Security measures for communication via PROFINET

In accordance with the Defense in Depth concept, PROFINET must be isolated from the

remaining plant or system network (see Industrial security (Page 27)). Access to cables and

possibly open connections must be implemented in a protected fashion, such as in a control

Preparations

1. Connect the converter to your commissioning device (PG/PC, tablet or smartphone) via

service interface X127.

2. Switch the converter on.

The converter starts up.

3. Start the browser in your commissioning device.

4. Enter the standard IP address (169.254.11.22) of the converter in the input line of your

Using the default configuration of the web server, you can access the SINAMICS frequency

converter using the service interface X127, both via an HTTP connection as well as via an

encrypted HTTPS connection.

In the standard configuration, interface X150 is deactivated for web server access operations,

and can be activated using parameter p8984[1] If interface X150 is activated for access to the

web server, then as default setting, access can only be established via a secure HTTPS

connection (see Chapter "Configuring the IP connection (Page 759)").

Parameter p8984[1] is a BICO parameter. This means that interface X150 can also be activated

for web server access via a key-operated switch.

Software manipulation when using non-encrypted connections (HTTP)

The HTTP protocol transfers data without encryption. This facilitates password theft, for

example, and can lead to data manipulation by unauthorized parties and thus to damage.

● Limit access to HTTPS connections so that all data is transferred in encrypted form.

Function Manual, 06/2019, 6SL3097-5AB00-0BP2

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