Hardware required for network connection:

CIM 500
Product number: 98301408

Note: : If redundant communication is required, Grundfos recommends a second CIM should be installed into pump no. 2.

CIM/CIU 500 communication interface for easy integration into Profinet-IO networks. Integration into the system is easy via GSDML files and supports the default profile for ‘intelligent pumps’ by PROFIBUS & PROFINET International.
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 PROFINET IO networks

Quick Guide for the CIM/CIU

Common error code for all Grundfos products

For easy integration into Profibus DP / Profinet IO for Siemens S7 PLC controls with example function block in TIA.

Functionblock PN/DP Booster 2Pump

The Grundfos MLE motor has several analogue inputs and an integrated PI controller. This means that a control loop consisting of pump and sensor can be set up directly.
Use our MGE sensor installation guides.

MLE with DPI I

MLE with DPI II+T & RPI+T2

MLE with RPI

MLE with VFI+T

MAGNA3 & TPE3 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:

PROFINET IO

CMBE Twin