Siemens Industry Online Support
Siemens AG
Entry type: Application example, Entry ID: 109745699, Entry date: 04/21/2017

LOGO! 8: Time Switch Function for KNX

  • Entry
  • Associated product(s)
Integration of a LOGO! 8 time switch function in a KNX system via LOGO! CMK2000 communication module.

With LOGO! 8 and integrated functions such as Astrotimer, Yearly and Weekly Timer, you can quickly and easily solve many automation tasks. The LOGO! text display (TDE) and the integrated web server of LOGO! 8 offer additional possibilities for controlling and monitoring.

For communication in building automation, Siemens offers a solution for LOGO! 8 in form of the communication module CMK2000. The communication module enables communication with any KNX devices via the KNX building system bus.

This application example offers you a complete time switch function for LOGO! 8 and shows you how to mount it into a KNX system via the CMK2000.

The combination of the time switch function in LOGO! 8 and the CMK2000 module
offers you the following advantages:

  • Switching of actuators at configurable times
  • Configuration of timer via the LOGO! display
  • Configuration of timer using the integrated Web server of the LOGO! 8
  • Integration of LOGO! inputs and output into a KNX system

Target group
This application example is aimed at experienced KNX users who seek to expand
their KNX system with the functionalities of a LOGO! 8.

Documentation und Projekt 
  Documentation (2,1 MB)
 Registrierung notwendig  LOGO! 8 program (52,5 KB)
 Registrierung notwendig  ETS5 project (814,8 KB)

Security Notes 
In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial security concept. Siemens’ products and solutions only form one element of such a concept. Customer is responsible to prevent unauthorized access to its plants, systems, machines and networks. Systems, machines and components should only be connected to the enterprise network or the internet if and to the extent necessary and with appropriate security measures (e.g. use of firewalls and network segmentation) in place. Additionally, Siemens’ guidance on appropriate security measures should be taken into account. For more information about industrial security, please visit http://www.siemens.com/industrialsecurity.
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Additional Keywords 
Timer, EIB