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B-8I IP (BACnet IP / Modbus TCP)


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8UI IP (BACnet IP / Modbus TCP)


The iSMA-B-8I-IP module features 8xDI (Digital Inputs) that can function as either dry contacts or fast pulse counters, with a capability to save data in EEPROM memory at a pulse rate of up to 100 Hz.

This module comes pre-equipped with two widely used open communication protocols, namely Modbus TCP/IP and BACnet IP, which can be selected using DIP switches.

The module also incorporates a built-in Modbus Gateway TCP/IP to Modbus ASCII/RTU, enabling seamless connectivity to additional modules/devices that communicate via Modbus RS485.

Addressing the modules is simplified through the use of rotary switches, streamlining and accelerating the system commissioning process.

Moreover, the module includes a built-in mini USB port, allowing for initial configuration without the need for an external power supply.


8x Digital Inputs (8DI)

  • Dry contact inputs
  • Fast pulse counter up to 100 Hz save in EEPROM memory


  • Cortex-M3


  • Interface RS485 half duplex
  • 1 x Fast Ethernet
  • Up to 99 devices on the bus
  • Protocols: Modbus or BACnet
  • Baud rate: 2400 to 115200 bps

Power supply

  • 24 V AC/DC


  • Dimension: 37x110x62 mm (1.457 x4.331×2.441 in)
  • Construction: plastic, self-extinguishing (PC/ABS)
  • DIN rail mounting (DIN EN 50022 norm)
  • Cooling: internal air circulation


  • Operating temperature: -10°C to 50°C (14°F to 122°F)
  • Storage temperature: -40°C to 85°C (-40°F to 185°F)
  • Relative humidity: 5 to 95%, no condensation
  • Ingress Protection Rating: IP40 – for indoor installation

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