IIoT I/O & RS485 Data Concentrator 16DI

16 channel isolated digital I/O concentrator for industrial automation, smart metering and building automation

Smart Metering
Industrial automation
Digital inputs
RS485 output

Our data concentrator and digital I/O module is the ideal product for IoT system integrators.

The product is used to read data from multiple front-end I/O field devices over one communication link and make the data available real-time to a back-end management system through another.
This way conventional devices can be attached to a modern control system and through standard Modbus protocol easily communicate with most SCADA/ HMI systems and PLCs.

The device provides the ability to save Data Logger information to an internal non-volatile memory, allowing real-time data reception of the 16 input channels to be recorded.

The input data (counter registers) can be sent by a connected modem or router through the RS485 output transparently (RTU over IP) or with RTU←→TCP conversion, and the data
can be read out by the data center.

Thanks to the Modbus RTU and RS485 data connection up to 254 devices can be connected to the same network, which is makes it possible to query a maximum of 4064 endpoints.

Thanks to the Modbus protocol, it can be easily integrated into a Scada environment or for local data collection into a PC- or a PLC environment to display on an HMI.

Our data acquisition concentrator has an IP31 protected plastic case. The isolated inputs and output are highly protected.

Our data concentrator comes in a IP31 protected, flame-proof plastic housing. It has protected and isolated digital inputs and a surge protected output. In combination with a cellular modem or router, it is suitable for reliable, real-time input monitoring, making the device one of the most cost-effective products in industrial IoT.


Main features

  • Continuous counting of input signals from metering devices (water, gas, electricity, etc.)
  • Readout of the status of connected inputs
  • 16 channel isolated digital inputs
  • Input modes: wet contact / dry contact / open-collector
  • Accept reed and hall sensor output from meters
  • Input channels also can work as 32-bit counter input (counters stored into Flash when power off)
  • Frequency: 0-200Hz / 16 channels, 1000Hz / 1 channel
  • Standard ModBus protocol allows for up to 254 connected devices
  • RS485 output with surge protection
  • Static electricity and lightning protection for each input
  • 24V AC/DC power input
  • Configuration software



Design and outfit

  • IP31-protected, flame proof plastic enclosure
  • 16 isolated digital inputs (terminal blocks for wiring)
  • RS485 isolated output (surge protection – terminal block)
  • I/O protection: against lightning, static electricity
  • Watchdog to monitoring operation
  • LEDs for indicating the operation




    Technical data

    m2m io/rs485 concentrator

    Product Datasheet

    Technical Specification

    Configuration tool

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