SINAMICS S120 - Web server

The SINAMICS drive system has been expanded to include an web server to facilitate efficient diagnostics and maintenance functions. It is an integral part of the SINAMICS firmware from version V4.7.

SINAMICS Web server Highlights

  • Shorter machine downtimes as a result of efficient diagnostics and maintenance

  • Languages can be directly selected German, English and Chinese

  • As standard – no additional costs included in the firmware

  • Can be accessed via all LAN or PROFINET interfaces

  • Two users with different authorization levels can be configured, e. g. for operating and service personnel


The web server is ideally suited for applications in which no special software (STARTER) or version dependencies are desired. Series commissioning is also possible without STARTER.

Local and remote diagnostics and maintenance are possible, taking into account the appropriate security measures (e. g. firewall). An up-to-date Internet browser is sufficient for access.

Function overview SINAMICS Web server

Any PC with a browser capable of going on the Internet is sufficient to execute functions such as:

  • Download a configuration

  • Firmware updates

  • Status overview of the drive

  • Evaluation of alarms and fault messages

  • Monitoring and adapting parameter settings

  • Archiving machine documentation including notes

  • Setting up user administration for access protection

Security information

For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action (e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept.  Third-party products that may be in use should also be considered.  For more information about industrial security, visit