16 relay outputs  SDM-16RO

SDM-16RO - 16 relay outputs

Tax excluded
  • OUTPUT: 16 digital relay PNP;
  • INPUT: RS485 - Modbus Slave (ASCII, RTU);
  • Up to 128 modules on RS485 network;
  • Mounting on a DIN rail;
  • Max load 3A/COM 250VAC; 3A/COM 30VDC;
  • Watchdog function;
  • Galvanic isolation of outputs
  • Comfortable connectors for cables (up to 2.5 mm2);
  • 2 years guarantee;
  • Made in Poland


  • OUTPUT: 16 relay outputs
  • INPUT: RS485 - Modbus Slave (ASCII, RTU)
  • Supply voltage: 10-38VDC; 10-28VAC
  • Up to 128 modules on RS485 network
  • Mounting on a DIN rail
  • Configurable output status after power return
  • Max load 3A/COM 250VAC; 3A/COM 30VDC
  • Common method: 4 points/COM
  • Watchdog function
  • Galvanic isolation of outputs
  • Comfortable connectors for cables (up to 2.5 mm2)
  • Configuration: Modbus Configurator (free)
  • Housing height: 62mm
  • 2 years guarantee
  • Made in Poland

The SDM-16RO module is an innovative device that provides a simple and cost-effective extension of the number of line of outputs in many of popular PLCs.

The module SDM-16RO communicates with all commercially available PLCs and other devices that support popular Modbus Master protocol.

The module has 16 relay outputs.

This module is connected to the RS485 bus with twisted-pair wire. Communication is via MODBUS RTU or MODBUS ASCII. The use of 32-bit ARM core processor provides fast processing and quick communication. The baud rate is configurable from 2400 to 115200.

The module is designed for mounting on a DIN rail in accordance with DIN EN 5002. The module is equipped with a set of LEDs used to indicate the status of outputs useful for diagnostic purposes and helping to find errors.

Module configuration is done via USB by using a dedicated computer program - Modbus Configurator (free). You can also change the parameters using the MODBUS protocol.

Available accessories:

Programming cable 1,0m: mini USB-1
Programming cable 1,8m: mini USB-2

User manual SDM-16RO

Anweisung SDM-16RO (User manual - german version)

Dokumentacja SDM-16RO (User manual - Polish version)

Instrukcja obsługi konfiguratora (User manual of Software - for programming - Polish version)

Declaration of Conformity CE - SDM Modules

Deklaracja zgodność ze znakiem CE 

Download Software for programming

Product Details


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