UNIGATE® MB Protocol Converter for devices with serial Modbus RTU interface

  • Easy installation
  • Norm compliant
  • Certified
  • Configurable
  • Ready-to-use
  • Designed and manufactured in Germany

For all devices with a serial Modbus RTU interface

The Deutschmann Protocol Converter UNIGATE MB connects your device to the desired fieldbus or Industrial Ethernet standard via a serial interface. RS232, RS485 and RS422 interfaces are on board as a standard feature of the UNIGATE.

The communication between the chosen bus system and the serial side can be carried out via Modbus RTU, Modbus ASCII as well as other common bus systems such as 3964(R).

A special feature of the UNIGATE MB series is Brand labeling. With the customized design Deutschmann Automation not only gives you the opportunity to pre-configure the device and choose different housing colors, you can also apply your own logo.

Typical serial applications that can be used with the UNIGATE include, among others, variable frequency drives, sensors, actuators, human machine interfaces, barcode readers, RFID readers and industrial scales.



UNIGATE® MB - overview

  • Available for most fieldbus and Industrial Ethernet versions
  • RS232, RS485- and RS422 interfaces on Board
  • When using the RS485 interface, multiple terminal devices can be used on a Protocol Converter
  • Same design on the serial side in all bus versions
  • The fieldbus or Ethernet side meets the standard, respectively the standard market modules.
  • Modern, slim DINrail
  • Same dimension in all bus versions
  • Wide voltage rane from 10 to 33 VDC
  • Built-in isolation on the bus side
  • Configuration of the module via configuration tool WINGATE
  • Modbus RTU (master/slave)
  • Modbus ASCII (master/slave)
  • Up to 24 Modbus requests configurable
  • 3964(R) protocol
  • Transparent protocol 
  • SSI protocol for transducer (gray code or binary code)
  • Once a configuration is completed it can be re-used for other installations.
  • Complete Modbus TCP interface
  • 10/100 Mbit/s
  • Isolated Ethernet interface with 1x RJ45 connector
  • Up to 252 Bytes input- and 252 Bytes output-data
  • RS232/RS485/RS422 up to 625 kBaud configurable

Technical data

(WxDxH in mm)

23 x 115 x 111 (screw-plug-connector included)
23 x 115 x 100 (screw-plug-connector not included)


approx. 120 g

Protection class


Housing material


Mounting DINrail (EN 50022)
External power supply 10 to 33 Volt DC
Reverse polarity protection, short circuit protection and overload integrated
Current consumption (at +24V/DC) typ. 70mA, max. 90mA
Operating temperature -25°C (non condensing) up to +85°C
Storage/transport temperature -40°C ... +85°C
Ethernet Protocols Modbus TCP, TCP, UDP, IP
Technology ASIC
Certifications CE


Order data

Order designation Description Order number
UNIGATE MB-ModbusTCP DIN-rail module for every device with serial Modbus RTU - to Fast Ethernet. Serial interface - RS232, 422 and 485 on-board. Housing: sky blue RAL 5015. V3982