Hardware required for network connection:

CIU 900 + CIM 200
Product number CIU 900: 99448387
Product number CIM 200: 96824796

CIM/CIU 200 communication interface for easy integration into Modbus RTU networks. 
The interface offers easy integration into both new and existing systems, as the Modbus RTU protocol is supported by several control and automation systems.

The CIU 900 is an external module for integrating the CIM, for wall or top hat rail assembly. These are equipped with an integrated 24 - 240 V AC/DC power supply unit.

Learn more about the CIU in the Grundfos Product Center

Learn more about the CIM in the Grundfos Product Center

Basic information on Grundfos Gateways for Modbus RTU 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


Modbus RTU

CUE