VM20.4DI 4 digital inputs module


4 digital inputs module


The VM20.4DI, was designed to extend the ability to receive digital signals dispersed throughout the building, with the aim of simplifying installation and reducing cabling. The VM20.4DI can be configured via Modbus or in the VDC application (vestra device configurator) for more features and simplify commissioning, this configuration interface was designed to easily configure the equipment, define variables, limits, functions, addressing, among other possibilities that allow universal adaptation. This equipment was built with a high degree of robustness, flexibility and adaptability to each situation, with a two-year warranty against manufacturing defects. Modbus communication gives the equipment a strong versatility and can be connected to any GTC system.


  • Each VM20.4DI is prepared to receive up to 4 digital signals
  • Reduced wiring compared to the traditional method
  • Removable connection terminals, facilitating electrification
  • Communication by RS-485 - Modbus
  • Easy to address and commission


Supply Voltage 12 to 24Vac/dc ± 15%
Consumption 45mA
Environment Temperature -10ºC to +50ºC (without ice)
Relative humidity 0 to 95% (without condensation)
Casing Material Polyamide
Light cream color
Dimensions 69mm height x133mm width x60mm depth
Weight ± 155g
Digital inputs Impedance 4.7 Kohm
Interoperability Modbus RTU Protocol
Baud Rate 4800 ... 57600 kbps
Data Bits 8
Stop Bits 1
Parity None

Models & Accessories
VM20.4DI 4 digital inputs module (opaque cover)
VM20T.4DI 4 digital inputs module (transparent cover)


To download the product datasheet, please click the links below:

Pulpit rock  

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