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Entry type: Application example Entry ID: 109755866, Entry date: 06/04/2019

LOGO! - Pump control for a cistern

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  • Associated product(s)
A building is to be supplied with a continuous supply of service water. With LOGO! 8 a pump control for a cistern is implemented.

The cistern is fed by rainwater and from it a building is supplied with service water by means of a pump. When the cistern is empty, the low fill level is detected by a sensor and a solenoid is actuated through which the cistern is replenished with drinking water.

LOGO! controls the pump to increase the pressure of the service water pipe to over 3 [bar].

Via the LOGO! display, the web server and via the LOGO! TDE the respective status of the pump control is to be communicated.

The integrated functions of a LOGO! 8 offer many additional possibilities to solve automation tasks quickly and simply.

With LOGO!, prefabricated function blocks support project creation, e.g. weekly time switch, pulse generator, astronomic clock/timer, seasonal time switch, stopwatch and simple logic gates.

The integrated LOGO! 8 web server offers from the LOGO! 8.2 version, in addition to the message text based display, the possibility to create user-defined web pages for clear operation and monitoring. This enables you to call up and control functions via the network.


  • Extendibility of the software program to include further tasks.
    (Watering the garden, fountains, individual safety and monitoring functions, etc.)
  • Straightforward, star-shaped arrangement of the wiring of the components.
  • Use of simple switches (circuit breakers) or pushbuttons.
  • Integration of LOGO! inputs and outputs into a KNX system.

Target group

This application example is aimed at specialist electrical installation staff.

Documentation and example project
  Documentation (1,2 MB)
 Registrierung notwendig  LOGO! program inside ZIP archive (31,4 KB)

Complementary search terms
Gardens, watering, irrigation, pool, pond, outdoor area, building services, household technology, home automation

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