Tyrrell Products


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


The price shown is excluding VAT. If VAT is applicable, it will be calculated at checkout based on the shipment address.

Get help buying, call 01942 732819

8UI IP (BACnet IP / Modbus TCP)

B-8I 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

Related products

Products enquiry

Please complete the enquiry form. Our team will contact you within 2 hours. 
(please note Tyrrell Products operational hours 9am – 5pm UK time)

Please enable JavaScript in your browser to complete this form.