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Controller MIQ/MC3


The controller family with network connection via ethernet/WIFI interface for the multi-parameter system IQ Sensor Net 2020 XT for up to 20 sensors

  • The integrated LAN interface allows the simplest network and internet connection (integrated web server) and remote access
  • Connection to the PLC made easy with our profibus DP and MODBUS RTU versions
  • Quick software updates and data backup via the standard USB interface

The availability or retrieval of online measured values - any time and from anywhere in the world - by means of network-capable computers and smart phones, is becoming more and more important for users in the industrial and wastewater treatment field. Modern online measuring technology must therefore allow a simple and cost-effective connection to local networks as well as to the internet.

WTW sets standards for this with their new controller product series MIQ/MC3, which has a standard integrated ethernet/LAN interface. The connection by means of existing routers into system networks and to the internet can be realized easily and cost-effectively without additional accessories. Thanks to the integrated web servers, data can be retrieved by means of internet-ready devices such as computers, tablets or smart phones, via web browsers.

The field busses PROFIBUS DP and Modbus RTU (connected via RS485 interface), PROFINET, EtherNet/IP and Modbus TCP (connected via LAN) ensure a reliable and direct data transfer to the PLC.

The standard USB interface allows easy software updates and data backup. The latter can also be done from the internet onto a computer. The necessary PC software IQ Software Pack CONNECT also allows the backup of configuration data as well as settings from the system. The user interface for these settings is the same as on the terminal MIQ/TC 2020 XT.


Model Description Order no.
MIQ/MC3 Controller of the system 2020, for up to 20 sensors, with automatic air pressure compensation, USB and RJ45 interface (ethernet) 471020
MIQ/MC3-MOD Like MIQ/MC3, but including MODBUS RTU/RS 485 interface (D-SUB plug connection ADA/D-SUB 902888, please order separately) 471022
MIQ/MC3-PR Like MIQ/MC3, but including PROFIBUS-DP/RS 485 interface (D-SUB plug connection ADA/D-SUB 902888, please order separately) 471023

Technical Data

Connectable sensors up to 20 sensors
Power output and relay up to 48 x 0(4) … 20 mA and relay (total)
Field bus communication PROFIBUS-DP, MODBUS RTU, Ethernet/IP, MODBUS TCP, PROFINET
USB interface for software updates and data backup
Data memory up to 525.6000 data sets
BackUp controller function Yes
Integrated lightning protection Yes
EMC protection Yes


Model Description Order no.
SSH/IQ Protective roof for MIQ modules 109295
WMS/IQ Wall mounting set for MIQ modules 480052
PMS Control panel mounting set for MIQ modules 480048
THS/IQ Rail mounting set for MIQ modules 480050
ADA/D-SUB D-SUB connector 902888

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