Unigate CL Siemens MPI Gateway


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MPN: V3556

Manufacturer: Deutschmann Automation

Delivery: Ships within 7-14 business days
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Product Information

Product Description

Siemens MPI-enable any RS232/485/422 serial or Modbus device with the UNIGATE CL Gateway. Make any serial device a Siemens MPI device using the UNIGATE CL Gateway. Its low-cost and flexibility are ideal for high volume applications. One side of the gateway is a fieldbus, Siemens MPI, while the other side is a high performance serial port that directly interfaces with your serial device. The serial side of the UNIGATE can either be used in one of many standard configurations (including Modbus RTU master/slave and standard RS232/422/485), or can be customized with its built-in scripting language. Volume and OEM pricing available.

The UNIGATE CL Gateway allows for the quick development of custom applications on the serial side using its powerful scripting language. When developing a custom application, or for simple configuration to a standard protocol, we recommend using a Starter Kit. Starter kits contain all the connection cables and power supplies for configuring and/or scripting. Scripts are written using the Protocol Developer Tool. If you need a custom protocol and scripting is not for you, Grid Connect offers scripting services at reasonable rates (call for details).


  • MPI is ideal for terminal-units that do not have their own MPI-interface
  • Max. 240 byte input and 240 byte output data
  • Script language for optimal adaptation to your field device
  • Easy configuration from MS Windows® using the WinGate tool.
  • Develop customized scripts with the free Protocol Developer software tool
  • Scripts are portable between all other UNIGATE CL or IC Gateways
  • Profibus Baud Rates up to 12 Mbps

Documents and Drivers


Unigate CL Siemens MPI Gateway Datasheet

Unigate CL Siemens MPI Gateway Manual


Baud Rate

  • Bus: Auto-sensing, up to 12 Mbps
  • Serial: Up to 625 kbps

Bus Buffer

240 Bytes I/O

Bus Termination




Characters T

7 or 8 data bits


  • Serial: RS232 - 3 Pole Terminal Block (Tx, Rx, Gnd)
  • Serial: RS422/RS485 - 4 Pole Terminal Block (RxA, RxB, TxA, TxB)
  • MPI: 9 pin D-Sub Socket (9-pin Female DB9)
  • Configuration/Programming Port Interface: Terminal Block (Tx, Rx)


Typical 120mA, max. 150mA at 24VDC

Data Buffer

1024 Bytes Input and 1024 Bytes Output 

Data Rate

110 to 625 kbps Baud 


23 x 115 x 100 mm



Indicators LED

  • Serial: Power, Code, State
  • MPI: Power, Bus, State


  • Isolated MPI interface, optional galvanic isolation of the serial RS side
  • Serial RS232, RS422 and RS485 interfaces on board
  • Configuration/Programming ("Debug") Port Interface


Galvanic Isolation


DIN Rail




Odd, even, none

Product Weight

130 g


  • Serial: RS232, RS422 or RS485, Modbus, plus Custom Protocols through Scripting
  • MPI: Siemens MPI
  • Configuration/Programming Port Interface: RS232 (9600 Baud, 8, n, 1)


Reverse Voltage, Short Circuit, Overload, Under voltage

Slave Address

Rotary Switches


MS Windows®-based WinGate configuration software, and Protocol Developer script development software

Stop Bits

1 or 2

Temperature Range

  • Storage: -40°C to +70°C (-40°F to +158°F)
  • Operating: 0°C to +55°C (32°F to +131°F)


Input: 10.8 to 30VDC

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