Barix IO12

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Barix IO12

I/O Extension Unit



Barix IO12 is a DIN-rail mountable I/O unit for commercial control, signaling, switching, sensing and counting applications. Using the industry standard Modbus protocol over 2-wire RS-485 the device can be controlled from any Modbus capable master.

Twelve outputs allow the use of the Barix IO12 in a wide range of switching and signaling applications:

Each output is capable of sourcing up to 1.5 Amps drawn from a DC power supply (5 to 30 Volts over separate supply terminals). For thermal reasons the total current should not exceed 6 Amps which leaves 0.5 Amps per output when using all outputs.

Twelve opto isolated electro static discharge protected inputs are powered in groups of 4 by 3 separate external power inputs. For counting applications each input signal is directly fed into a counting register (up to 100 pulses/second). At the same time each signal is filtered (debounced) and stored in a state register for dry contact and push button applications.

Separate removable screw terminal blocks supporting wires from AWG28 / 0.08mm2 up to AWG16 / 1.3mm2 are provided for power input, RS-485, inputs and outputs. To connect to other Barionet devices the Barix IO12 features two extension connectors on both sides of the device carrying power and RS-485 signals (one extension cable included).

A mounting bracket is available as an accessory. Barix IO12 supports Modbus/RTU protocol at speeds of 9’600 and 19’200 Bauds, with and without parity and is a low cost alternative to add I/O capabilities to Modbus systems. Up to 31 Barix extension units can be directly connected to a Modbus Master such as the Barix Barionet and can be increased to up to 250 devices using standard RS-485 repeaters. Using the Barix Barionet, the Barix IO12 can be controlled by a local Basic application (BCL) as well as remotely using TCP, UDP, Modbus/TCP and SNMP.


Weitere Informationen

  • 12 solid state current sourcing (thermal and over current protected, max 1.5 A each, max 6 A in total, connector for external power supply, 30 VDC max.

  • 12 opto isolated inputs (5 to 30 VDC), registered (30 msec filter) and counted (<100 pulses/sec),
  • ESD protected in groups of 4 with separate
  • power terminals (10 to 30 VDC, polarity protected)

    Serial Interface
  • RS-485 (2-wire), 9´600/19´200 Baud , 8 bit, Even/No
  • parity, software configurable, Modbus/RTU protocol

  • Separate detachable screw terminal blocks for
  • wires AWG 28 – AWG 16 / 0.08 – 1.3 mm²
  • 2 extension connectors (3"/75 mm cable included)

  • 2 LED´s for power and RS-485 send indication
  • Internal connector for default settings jumper

    Power supply requirements
  • 12 to 24 VAC / 9 to 30 VDC, 2 Watt max.

  • high quality plastic, 145 g, DIN-rail mount.
  • 4.13" x 3.34" x 2.83", 105 mm x 85 mm x 32 mm

  • Min. 207 000h acc. to MIL217F at 25°Cambient temperature


    Dokumentation PDF Barix IO12 (228.5 kB)

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