MT-156 HMI HeatSens – telemetry controller programmed in CODESYS®

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Resources Functionality Technical drawing Photos MT-156 HMI HeatSens

MT-156 HMI HeatSens v3 is a modern, new-generation telemetry controller that combines the functions of a programmable PLC controller, data logger and protocol converter. It features a built-in CODESYS Runtime environment and full programming support in the free CODESYS Development System compliant with IEC 61131-3. Thanks to Dual-SIM technology and support for 2G/4G and LTE Cat. M1/NB-IoT communication, it ensures reliable and redundant data transmission. The device is equipped with a graphic OLED display and navigation buttons, enabling local parameter viewing and configuration without additional devices.

The controller offers a wide range of inputs and outputs – 10 PT1000 inputs (including 2 configurable as 4–20 mA), 2 analogue 4–20 mA inputs, 12 configurable binary I/Os and ports: Ethernet, RS-232/485, USB, M-Bus and 1-Wire. With advanced user logic, alarms, data logging and remote firmware update capabilities, the MT-156 HMI HeatSens is a complete solution for complex telemetry and industrial applications.

Key features and benefits

  • PLC controller with CODESYS Runtime – programmable in IEC 61131-3 standard.
  • 2G/4G or LTE Cat. M1/NB-IoT modem with Dual-SIM – redundant and reliable data transmission.
  • 10 PT1000 inputs (2 as 4–20 mA) – precise measurement of temperature and analogue signals.
  • 2 analogue inputs 4–20 mA – 15-bit resolution, opto-isolation, hysteresis and filtering.
  • 12 binary inputs/outputs with galvanic isolation – high flexibility in automation.
  • Support for MODBUS RTU/TCP, M-BUS and transparent transmission mode – wide compatibility.
  • Ports: Ethernet, RS-232/485, USB, 1-Wire – device communication and local configuration.
  • OLED display with buttons + LEDs – local preview and diagnostics.
  • 1 s data logger with SD card – detailed data and event analysis.
  • Remote configuration, programming and firmware updates – simplified maintenance.
  • DIN IP40 enclosure, 12/24 V DC power supply – industrial-grade reliability.

Application of the MT-156 HMI HeatSens module

  • Temperature and process monitoring – heating, cooling, sensor networks.
  • Telemetry and IoT systems – remote data collection and analysis (smart/edge).
  • Industrial and building automation – device control, HVAC and installations.
  • Integration with SCADA and BMS – energy monitoring and management.
  • Remote control and alarming – SMS/e-mail based notifications.
  • Heating and water supply systems – temperature, flow, and device status measurement.

With its rich functionality, CODESYS programming support and extensive communication capabilities, the MT-156 HMI HeatSens v3 is the ideal choice for advanced remote control and monitoring systems.

Resources

  • CODESYS RUNTIME SYSTEM (RTS) 256 kB FLASH memory, 64 kB RAM
  • Creating user programs using free CODESYS Development System (in accordance with IEC 61131) – with debug option
  • 10 PT1000 inputs, including 2 configurable PT1000/4–20 mA inputs
  • 12 binary, configurable inputs/outputs (galvanic isolation)
  • 2 opto-isolated, differential analogue inputs 4–20 mA (accuracy 0.2%, 15-bit resolution) with configurable hysteresis and filteing
  • 10Base-T/100Base-TX Ethernet port
  • Isolated RS-232/485 serial port
  • RS-232 port with 5 V/500 mA power output
  • 1-wire interface
  • USB port for local configuration and programming
  • Slots for 2 SIM cards (radio network redundancy)
  • Internal temperature sensor
  • Graphical OLED display and status LEDs
  • Internal flags and registers available to the user
  • Remote firmware update
  • Data and event logger, SD card recording
  • Real-time clock RTC (with external synchronisation capability)

Functionality

  • Transmission modes:
    • 2G/4G lub 2G/LTE Cat. M1/NB-IoT – packet transmission
    • SMS
    • E-mail (without SSL)
  • Access to module resources via standard MODBUS RTU and MODBUS TCP protocols
  • Intelligent packet routing and Multimaster operation in MODBUS mode
  • Transparent mode packet distribution
  • Programmable logic functions using inputs/outputs, timers, counters, flags and registers to trigger events (data transmission, sending SMS and e-mail messages, setting outputs and internal registers, etc.)
  • Event transmission as a result of a change in the state of a binary input or internal flag, exceeding a set analogue value threshold or fulfilling a logical condition
  • Sending SMS/e-mail messages triggered by events or according to a schedule
  • Dynamic insertion of variable values in SMS/e-mail message fields
  • Configurable alarm thresholds, hysteresis, dead band and filter constant for analogue inputs
  • Data and event logging on SD card with 1s resolution
  • Data transmission from external devices connected to the RS-232/485 port
  • Ability to map external device resources to trigger events
  • Remote configuration and programming via radio network
  • Protection against unauthorised access – list of authorised IP addresses and telephone numbers, optional password
  • DIN rail mounting
  • 12/24 V DC power supply
  • Built-in self-diagnostics
  • Detachable terminal blocks
  • Auto-configuration based on a unique ID number read by the 1-Wire interface