Brainchild IO-8AIIS Module

  • 8 Current Inputs Fully Isolated
  • DIN Rail Mounting Clip
  • Modbus RS485 Port
  • Simple setup and easy handing
  • Communicate with a datalogger, PLC or HMI via Modbus RTU protocol
  • LED for each module IO status, communication and power supply
  • Removable screw terminal connectors


SKU: IO-8AIIS Categories: ,


The IO-8AIIS Isolated Current Input Module by Brainchild with RS485 interface and 8 fully isolated analog inputs. For use with HMI, PLC or SCADA via Modbus RTU protocol.

Each channel has a connection terminals and an LED status indicator channel. Uses the Brainchild PC software IO Studio to configure communication with the module. The module housing is plastic with DIN rail mounting.


  • Analog inputs: 8
  • Entry type: Differential
  • Input current: 0 to 20 mA
  • Navigating switch: 4 mA
  • Resolution 12-bit (0 to 4095)
  • Sampling rate: 12.5 samples / s
  • Input Impedance: 250 Ohms
  • Derivative: 100 ppm / deg.C
  • Accuracy: 0.2% of span
  • Isolation: 1000 Vrms
  • LED status indicator for each channel
  • Power supply (not included): +12 VDC to +24 VDC
  • Watchdog timer
  • Watchdog time adjustable from 1 to 255 s
  • Mounted in plastic housing easily portable and compatible with the system DIN-rail mounting
  • Provides automatic connection to terminal block power and data
  • Communication interface supports 2-wire protocol RS485 allows up to 128 connected to the same RS485 network
  • Baud rate: up to 115200 bps
  • Designed for use with HMI, PLC, SCADA and compatible with Modbus RTU protocol
  • Modbus address setting by dip-switch (allows Mobbus 127 addresses)
  • Module Size: 23 x 109 x 98 mm
  • Weight: 105 g