Smart Modbus RTU Controller with 6 Analog/Digital Inputs, 4 Relays, and 4 Analog Outputs for Versatile Automation
Reliable. Flexible. Built for modern automation.
6 universal inputs – support 0–10 V, 4–20 mA, NTC, or digital modes
4 relay outputs – industrial-grade Omron® relays
2 analog voltage outputs (0–10 V)
2 analog current outputs (4-20mA)
Built-in rule engine – enables autonomous operation without a Modbus Master
The FoxIoT 6ADi4Ro2AVo2AIo is a smart Modbus RTU controller with 6 digital inputs, 4 relays, and 4 analog outputs (0–10 V and 4–20 mA). It's ideal for controlling valves, dimmers, and analog-driven field devices in HVAC, lighting systems, industrial automation, and virtual power plant (VPP) applications. Built-in logic enables reliable local automation even without a Modbus master.
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6 configurable inputs: digital, precise 16-bit analog (0–10 V or 4–20 mA with external resistor), or NTC temperature mode (with software pull-up for dry contacts)
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High-accuracy analog inputs (±0.1% or ±3 mV)
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4 high-quality Omron relay outputs (max 16A)
- 2 stable and accurate voltage outputs (0–10 V)
- 2 stable and accurate current outputs (4–20 mA)
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Modbus RTU communication up to 115200 bps
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Configure address, baudrate, and parity via buttons or Modbus
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Built-in rule engine for local automation logic
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Status LEDs and manual relay control buttons
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Wide input voltage: 10–30 VDC
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Wide operating temperature range (–40 °C to +55 °C)
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32-bit ARM Cortex-M33 processor (up to 76.8 MHz) ensures responsive performance
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Pluggable terminal blocks for quick wiring
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DIN rail mountable
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Tool-free setup via onboard buttons for address and serial settings
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Manual relay control and status LEDs for easy testing
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Instant reaction & reliability — internal rules handle logic locally and keep the system running even if Modbus communication is lost
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Adaptable input modes — digital, analog, or NTC configuration via software
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Reliable Omron relays — Omron components are trusted for high endurance and consistent performance
- 0–10 V and 4–20 mA outputs — compatible with most analog control devices in industrial and HVAC systems
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Fast installation and maintenance with pluggable connectors
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Robust protection — tolerant to wiring mistakes, ±30 V on RS-485 lines, and protected inputs
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Flexible and remote configuration — all settings can be adjusted via Modbus RTU to suit various integration needs
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Building automation and HVAC — ideal for room control applications such as lighting, heating, cooling, ventilation, or curtains, using temperature sensors, 0–10 V output control, and internal logic
- Industrial process control — read analog signals, switch relays, and generate analog output signals to interface with external automation systems
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VPP (Virtual Power Plant) applications — maintain safe fallback states if communication with the master controller is lost
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Pump and level control — use analog or digital inputs to automate fluid systems, and control pumps or valves using 4–20 mA output signals
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Agricultural automation — automate irrigation, temperature, or ventilation based on sensor input, and control actuators with analog outputs
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Remote sites — perform critical actions locally even without Modbus communication
Request a Personalized Quote
We offer flexible pricing for bulk orders, system integrators, and long-term partners.
If you're planning to use the 6ADi4Ro2AVo2AIo controller in building automation, industrial control, or VPP projects — we'd love to hear from you.
Our team will send you a fast, personalized quote based on your needs.