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Módulos Modbus

Allows input/output distribution,
both digital and analogic.

Devices for remotely acquiring data from sensors and acting over de-centralized outputs (both analogic or digital) using Modbus communication protocol.

Modbus Module

Internal functions based on the digital inputs, like water flow meters, pulse counters, pulses per minute, etc..

  • Modbus RTU protocol.

  • Manages sensors and actuators, both digital and analogic.

  • Internal functions for managing the digital inputs.

  • Ideal for controlling industrial processes and telemetry.



There is a wide range of products, with similar technical characteristics but with different number of inputs/outputs.

Mb088 Modbus Module Mb088

Digital inputs: 8
Digital outputs: 8

Mb104Modbus Module Mb104

Digital outputs: 8
Analogic outputs: 4

Mb140 Modbus Module Mb140

Digital inputs: 8
Analogic outputs: 4

Mb016Modbus Module Mb016

Digital inputs: 16

Mb160 Modbus Module Mb160

Digital outputs: 16

  • Characteristics
  • Specifications
  • Dimensions
  • Documents

Main Characteristics

  • Serial communication using Modbus RTU standard protocol over RS485, RS232 or Ethernet.
  • Configurable communication speed, up to 19200 bps.
  • Implements error control protocol.
  • Power supply from 12 to 24 VDC.
  • Configuration through serial commands.
  • Output closing by programmable timeout.
  • Input/output LED indicators.
  • Automatic storage of data in non-volatile memory in case of power breakdown.
  • Quick and easy installation.
  • Configuration of digital input behaviour, with possibility of operating like water-flow meter, pulse counter, pulses per minute or state indicator.

Technical specifications

Alimentación Between 12 and 24 VDC
Communication ports RS485 – RS232 (only configuration)
Communication speed From 2,4 to 19,2 kbps
Anchorage Sobre carril DIN de 35mm
Temperature range -5ºC to 45ºC
Type Dry contact (relay)
Contact charge 5A/30VDC, 5A/250VAC
Type Optocoupled NPN or PNP
Voltage range From 12 to 24 VCD
Voltage range 0 to 10V or 4 to 20mA
Resolution 12 bit (4096 points)
Communication speed 0 to 10V or 4 to 20mA
Resolution 12 bit (4096 points)
Current impedance 20 ohms
Voltage impedance 52 kohms


High 106 mm
Wide 62 mm
Depth 76 mm
Modbus Module