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Flex I/O Module


The Flex I/O module is a universal remote I/O module with 8 user selectable inputs for pulse, analog and resistive output devices. Integrate with any Programmable Logic Controller or distributed Modbus network through RS-485.

Additional Information

Flex I/O A8332-8F2D

Our Flex I/O is a cost-effective way to collect data from meters or sensors and bring that information into a Modbus network or energy monitoring system. As a stand-alone or bundled package, the Obvius Flex I/O can be incorporated with data acquisition and wireless metering devices to provide a cost-effective energy monitoring solution.


The Flex I/O is compatible with virtually any Modbus master, allowing customers the flexibility to use it in existing Modbus networks. Use with the Obvius AcquiSuite and take advantage of plug-and-play communication or use with the Obvius ModHopper for wireless communication. Ask about the Obvius Commissioning Console, a free commissioning software.


  • Converting analog, resistive and pulse inputs to Modbus
  • Utility submetering (electric, gas, water, etc.)
  • Cost Allocation
  • Measurement and Verification
  • Benchmark building energy usage
  • Relay outputs for demand control
  • Environmental monitoring
  • Track energy use and peak demand for Demand Response
  • DC current monitoring for Renewable Energy

Features and Benefits
  • Designed specifically for metering applications
  • Easily add meters and sensor to a Modbus network
  • 8x user selectable inputs
  • 2x output relays
  • 2x pulse replicator
  • Non-volatile memory
  • Industrial temperature range -30 to 70C
  • LEDs for visual verification / status
  • DIN or wall mount for easy installation
  • Field upgradable firmware