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 Unigate CL Siemens MPI Gateway

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Unigate CL Siemens MPI Gateway


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Unigate CL Siemens MPI Gateway
Unigate CL Siemens MPI Gateway  Part No


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

  • Isolated MPI interface, optional galvanic isolation of the serial RS side

  • Profibus Baud Rates up to 12 Mbps

  • Serial RS232, RS422 and RS485 interfaces on board

  • Serial Baud rates up to 625 kbps

  • 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


    Serial Interface
    Data Rates 110 to 625 kbps Baud
    Characters 7 or 8 data bits
    Parity odd, even, none
    Stop Bits 1 or 2
    Protocols RS232, RS422 or RS485,  Modbus,  plus Custom Protocols through Scripting
    Data Buffer 1024 Bytes Input and 1024 Bytes Output
    LEDs 6 Total (Power(1), Code (4), State (1))
    Connector RS232 - 3 Pole Terminal Block (Tx, Rx, Gnd),  RS422/RS485 - 4 Pole Terminal Block (RxA, RxB, TxA, TxB)
    MPI Interface
    Protocols Siemens MPI
    Slave Address Rotary Switches or via Profibus
    Connector 9 pin D-Sub Socket (9-pin Female DB9)
    Bus Termination Switch-able
    Bus Baud Rate Auto-sensing, up to 12 Mbps
    Bus Buffer 240 Bytes I/O
    LEDs 3 Total (Power(1), Bus(1), State (1))
    Isolation Galvanic Isolation
    Configuration/Programming ("Debug") Port Interface
    Protocols RS232 (9600 Baud, 8, n, 1)
    Connector Terminal Block (Tx, Rx)
    Current Typical 120mA, max. 150mA  at 24VDC
    Input Voltage 10.8 to 30VDC
    Protection Reverse Voltage, Short Circuit, Overload, Under voltage
    Operating Temp 0° to 55°C
    Storage -40° to 70°C
    IP Rating IP24  (Ingress Protection)
    Dimensions 23 x 115 x 100 mm
    Weight 130 g
    Mounting Din-Rail
    Included Software
    MS Windows®-based WinGate configuration software, and Protocol Developer script development software
  •      Download Unigate CL Siemens MPI Gateway Specification 

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