Hardware required for network connection:

CIM 500
Product number: 98301408

The CIM500 interface offers easy integration into both new and existing systems, as the Modbus TCP protocol is a standard protocol supported by numerous control and automation systems.
With a rotary switch, you can easily change the protocol to PROFINET IO, Bacnet Ip and Ethernet IP.
An integrated webserver allows easy Ethernet parameter changes to configure the CIM500 to the wider system.

Learn more about the module in the Grundfos Product Center

Basic information on Grundfos Gateways for Modbus TCP networks

Quick Guide for the CIM/CIU

Common error code for all Grundfos products

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 and the build-in Bluetooh communication interface, you can parametrise Grundfos pumps and controls, save settings or generate commissioning logs with your smartphone or tablet. The free smartphone app is available for download in the app stores below:

Modbus TCP

LC 231