IoT and Automation

LM-D44

Digital input and output module

Code: D90120

Protocol: Modbus RTU | Modbus TCP/IP
Communications: RS-485 | Wi-Fi
Output relay: 4
Digital inputs: 4
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Overview

Input and output signal management module, designed for DIN rail mounting (3 modules) and AC power supply. It has 4 potential-free digital inputs and 4 relay outputs. Serial communication for Modbus RTU via RS-485 and Modbus TCP/IP via Wi-Fi. Advanced design with integrated automation functions, allowing the device to operate autonomously, without relying on a central control system.

Key Features

  • Alarm management to detect in-range or out-of-range values and activate the relay output.
  • Automatic unit conversion, directly displaying the measurement in the corresponding physical unit.
  • "Hour counter" function, records how long the digital input remains active, key for usage monitoring and obtaining the CAE.
  • Integrated web server with and intuitive and user-friendly interface for advanced Wi-Fi settings.
  • Compatible with the MyConfig app, for fast and easy set-up.
  • Compatible with PowerStudio, for advanced configuration and integration into SCADA systems.

Technical Specifications

AC power supply

LM-D44 AC power supply
Nominal voltage100 … 264 V ~
Frequency50 … 60 Hz
Consumption5 … 8 VA
Installation categoryCAT III 300 V

Digital relay outputs

LM-D44 Digital relay outputs
TypeOptocoupled
Quantity4
Nominal voltage250 V ~ / 30 Vdc
Nominal current5 A ~ / 250 V ~ (with resistive load)
Electrical life1 × 10⁵ (250 Vac / 5 A)

Digital inputs

LM-D44 Digital inputs
Quantity4
TypeOptocoupled

Wireless communication

LM-D44 Wireless communication
Technology / TypeWi-Fi
Band2.4 GHz / IEEE 802.11 b: 20 dBm / IEEE 802.11 n: 14 dBm

User interface

LM-D44 User interface
LED6 LEDs

Environmental characteristics

LM-D44 Environmental characteristics
Working temperature-10 … +50 °C
Storage temperature-20 … +70 °C
Relative humidity (without condensation)5 … 95%
Protection classIP40 (Front), IP30 (unmounted)

Mechanical characteristics

LM-D44 Mechanical characteristics
EnvelopeSelf-extinguishing V0 plastic
FasteningDIN rail
Weight (kg)0,19
Size (width × height × depth)52.5 × 118 × 70 mm

Standards

LM-D44 Standards
StandardsUNE-EN 55022, UNE-EN 55016-2-1, UNE-EN 61000-4-2, UNE-EN 61000-4-4, UNE-EN 61000-4-5, UNE-EN 61000-4-6, UNE-EN 61000-4-8, UNE-EN 61000-4-11, UNE-EN 61000-4-20, UNE-EN 60068-2-1, UNE-EN 60068-2-2, UNE-EN 60068-2-78, UNE-EN 61010-1, ETSI EN 301-489-1 v2.2.3, ETSI EN 301-489-17 v3.3.1
CertificationsCE
Electrical safety, Maximum height (m)2000

Applications

Thanks to its compact design, advanced connectivity and integrated automation functions, the LM-D44 is suitable for applications in any environment, from industrial facilities to service infrastructures, such as:

– Industrial process control.
– HVAC system monitoring.
– Metering electrical or hydraulic consumption.
– Public lighting and HVAC management.
– Energy monitoring in buildings, hotels or retail.
– Access control and supply management in marinas, campsites or multi-user spaces.

Need more detailed information?

View the official product documentation,
manuals and technical resources.

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