CIM/CIU communication interfaces enable control of pumps and pump systems

Saving you time and money while delivering peace of mind, Grundfos CIM/CIU communication interfaces are the ideal solution for control of pumps and pump systems. The Communication Interface Module (CIM) and the Communication Interface Unit (CIU) enable data communication via open and interoperable networks.

This Grundfos fieldbus concept is easy to install and commission, and the CIM/CIU communication interfaces support a wide range of Grundfos products. All modules are based on standard functional profiles for easy integration into the network and easy understanding of data points, improving your ability to control pumps and pump systems.

How do control solutions optimise your HVAC system in buildings?

Whatever your system challenges, there are several ways intelligent controls can help. In our controls application guide, you can learn everything there is to know about how to install and commission our solutions to fully optimise your HVAC system. Find out how to:

  • Reduce energy consumption
  • Increase system performance
  • Reduce manual monitoring 

See how customers benefit from this product

When Grundfos is a part of the solution, you get reduced energy consumption, increased comfort and unsurpassed operational reliability. Read our customers' own stories about how they benefit from the Grundfos approach to intelligence, water and energy.

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Interested in improving your product knowledge?

Find out about the latest studies of pumps and systems, where to use Grundfos solutions and how to achieve the best performance, or search Grundfos research & insights for specific learning materials, articles, white papers, videos and much more that benefit your solution.

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We have gathered frequently asked questions and their answers in one place. See the most frequently asked questions below or go to the Grundfos FAQ for a complete list of answers to questions about our products.