Hardware required for network connection:

CIM 500
Product number: 98301408

These communication interfaces are based on standard BACnet object types and take direct data access via the network into account. The BACnet functional profile has been specifically created and optimised for the exchange of data between pump systems and the building automation system.

With a rotary switch, you can also change the protocol, e.g. to Modbus TCP.

An integrated webserver allows the Ethernet parameters to be set easily.

Learn more about the module in the Grundfos Product Center

Basic information on Grundfos Gateways for BACnet IP networks

Quick Guide for the CIM/CIU

Common error code for all Grundfos products

The highly efficient and intelligent combination of Grundfos pump technology and the Siemens Desigo CC building management platform.

For easy integration in BACnet for Siemens PX controls with example of function module in Siemens XWorksPlus from version 6.0.

Siemens PX with Magna function block

The Grundfos MAGNA3 pump has a build in sensor, an analogue input and an integrated PI controller. This means that a control loop consisting of pump and sensor can be set up directly.
With an additional temperatur sensor Grundfos HVAC pumps can calculate heat energy.
Use our MAGNA3 sensor installation guides.

MAGNA3 with RPI T2

The PC Tool CIM/CIU is intended for system integrators and Grundfos service personnel. It shows the data content (functional profile) of a Grundfos product, which is connected to your PC via a CIM, CIU or softCIM.

PC Tool CIM/CIU


The CIM 500 firmware can be updated via the integrated webserver.

Current CIM 500 firmware


With the "Grundfos GO Remote" app, you can use your smartphone or tablet to parameterise Grundfos pumps and controllers, save settings and create commissioning logs.
The app can be connected to the device via Bluetooth if it is supported or via a Grundfos MI 301 (98046408). The free smartphone app is available for download in the app stores below:

BACnet IP

MAGNA3