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miface – Universal Interfaces

The universal interfaces "miface" are used for converting serial interfaces to fieldbus interfaces.

Customer benefits

  • Integration of serial devices into industrial networks
  • Communication application for serial devices in fieldbus
  • Uniform bus structure
  • Cost reduction due to the use of similar interfaces
  • Optimisation of the data structure


Case Studies

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Robust and suitable for industrial applications

The universal interfaces of the model series "miface" are equipped with a robust aluminum housing for industrial use.


Simple installation and status check

The mechanical design is made for top-hat rail mounting. Additionally, freely accessible DIP switches are also included, e.g. for selecting the serial interface.The current operating status is indicated via status LEDs.


Different protocol converters

Depending on the model, the interfaces have a fieldbus interface which transmits the data to be transferred in the required format.

Interface models:

  • miface PN with converter from Profinet to RS232, RS485 or RS422
  • miface PB with converter from Profibus to RS232, RS485 or RS422
  • miface EN with converters from Ethernet to RS232, RS485 or RS422

Effective data communication

The interfaces operate on the communicator principle: Profinet IO RT, Profibus-DP and Ethernet TCP/IP fieldbus data are converted into an electrically isolated serial interface (RS232, RS485 or RS422).


 miface PNmiface PBmiface EN

Interface specification

Interface 12 x Profinet IO RT
(with integrated Switch)
Profibus-DPEthernet TCP/IP
Transmission rate100 MBit/s9,6 Kbit/s to 12 Mbit/s10/100 MBit/s
Interface 2RS232 , RS485 or RS422
Transmission rate

1,2 to 115 Kbit/s

300 Bit/s to 230 Kbit/s
Data format7N2, 8N1, 8E1, 8O17N1, 7E1, 7O1,
7N2, 7E2, 7O2,
8N1, 8E1, 8O1,
8N2, 8E2, 8O2

Housing & Mounting

Housingtop-hat rail housing, aluminium design
Housing dimensions
(W x H x T)
26 x 105 x 70 mm (without clip fastener)
Mountingtop-hat rail (35 mm)

Power supply

Operating voltage12...30 VDC

Power consumption

approx. 2,4 W at 24 VDC operating voltage

Environmental conditions

Operating temperature0...+50° C
Storage temperature-25...+60° C

Send Inquiry

Technical details (optional)

Contact details

microSYST Systemelectronic GmbH

Am Gewerbepark 11
92670 Windischeschenbach

+49 96 81 / 91 96 0 - 0