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smartDEN Modbus TCP Ethernet 16 Relay Module - DIN RAIL BOX

smartDEN IP-16R-MT is a LAN relay module with 16 SPDT relays for remote control with integrated web server for set-up, ModBus-TCP and http/xml/json support for embedding in other systems. The built-in real time clock allows to organize schedule stand-alone work without connection to computer. Suitable for Industrail and Home automations, irrigation systems and network watch-dog systems. Works with Home Assistant, Domoticz and OpenHAB home automation systems as well as with Node-RED IoT platform. Supported by DRMv3 Software and DAE-aModules android app. This is the version with DIN rail box.

Supply Voltage:
Price: $158.50
Quantity: + -
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  • 10 Mb Ethernet interface with Link/Activity Led;
  • Auto-MDIX;
  • 16 SPDT relays (with NO and NC contacts);
  • Led for each relay;
  • Pulse function (timer) for every relay;
  • Real Time Clock (RTC) for schedule (calendar) stand-alone work;
  • Web server with secure login authorization;
  • MODBUS-TCP protocol;
  • Secure HTTP/XML/JSON API protocol support for read/write relays status;
  • Supported protocols: ARP, IP, ICMP (ping), DHCP, DNS;
  • Watch-Dog Auto-Reboot ICMP (outgoing) function;
  • Access protection (by IP and MAC address);
  • Option for relays states saving and loading on reset;
  • Many software examples - here
  • Supported by DRMv3 Software (Windows, Linux, Raspbian) - New;
  • DAE-aModules App for Android - New;
  • Supported by Home Assistant home automation software - New;
  • Supported by openHAB home automation software;
  • Supported by Domoticz home automation software;
  • Supported by Node-RED IoT platform;
  • Other third party software - here;
  • Documentation - here



Technical Parameters

Box size, mm 210 x 85 x 58
Box weight, g 420
Power supply voltage,VDC 12 or 24 (depends on the model) ±2
Maximum current consumption at 12VDC (when all relays are ON), mA 600
Maximum current consumption at 24VDC (when all relays are ON), mA 400
Operating temperature range, °C 0 to 70
SPDT relay channels (the type depends on the stocks quantity in our store):

TONGLING - JQC-3FF-S-Z (10A / 250VAC, 15A / 120VAC, 10A / 28VDC)

SUNHOLD - RAS xx15 (10A / 250VAC, 15A / 120VAC, 15A / 24VDC)


Please note the product does not come with power supply adapter that you may need. We offer suitable 12V or 24V adapters



Application Examples

  • Remote control of electrical appliances;
  • Industrial automation;
  • Home automation;
  • Restart computers remotely;
  • Garden irrigation applications which requres powering on/off upon certain time without computer.

Easily access SmartDEN IP-16R-MT via internet or LAN and control appliances remotely for Home Automation and Industrial Automation applications.

SmartDEN IP-16R-MT supports up to 30 schedule events for controlling appliances without connection with computer. It is possible to set ON/OFF event upon minute, hour, day of week or certain date. For more information please take a look into the documentation.

SmartDEN IP-16R-MT supports periodically sending outgoing ping request to remote host (router, switch, PC, IP camera...) and upon timeout it will perform reboot of the device in order "to keep it alive".


SmartDEN IP-16R-MT Overview



Access from Home Assistant

Home Assistant is very powerful home automation system. Please checkout our application note for more information.




Access smartDEN IP-16R-MT from OpenHAB

OpenHAB is a third party open source free home automation software. Run your server on Linux, macOS, Windows, Raspberry Pi, PINE64, Docker, Synology... Access it with apps for the web, iOS, Android and others. Use a powerful and flexible engine to design rules, with time and event-based triggers, scripts, actions, notifications and voice control.


There are two ways of communication - via HTTP GET and ModBus-TCP requests. More information about the integration with our hardware - or contact with us.




Access smartDEN IP-16R-MT from Domoticz

Domoticz is a free open source popular home automation software which can run on Windows, Linux, MAC, Rasberry PI and others. It is a home automation system design to control various devices and receive input from various sensors. Access it with apps for the web, iOS, Android and others.


More information about how to connect and use it with our hardware - or contact with us.

For Hardware configuration, please use: Type = Denkovi Modules with LAN (TCP) Interface, Model = WiFi 16 Relays-TCP Modbus, Slave ID = 1




Access smartDEN IP-16R-MT from Node-RED

Node-RED is a flow-based programming platform for the Internet of Things. We prepared small example for communication between Node-RED and our device. More info about Node-RED and denkovi modules: here

You can download the example Node-RED flows from here: ModBus-TCP



Access via mobile devices


Android App DAE-aModules


Android app on Google Play




Some useful information about DAE-aModules and smartDEN IP-16R-MT:



  • Select device smartDEN IP-16R-MT - XML. You have to enter the IP of the device, the HTTP (Web) port and the main password (so far it is implemented only the HTTP/XML communication with the android app).

Please note you have to log-out from the webserver in order to work with the android app!



Access via software DRMv3

This device is supported by DRMv3 Software.

The device can be found in the device list under the default name: smartDEN IP-16R-MT






Control smartDEN IP-16R-MT with browser


Control smartDEN IP-16R-MT via HTTP GET Request and receive the reply in XML or JSON format






Release Date Current  Version Update Utility Version History Note
Mar 2024


Denkovi Finder   Version History Instructions how to update - will be sent by request only


Denkovi software

  • Denkovi Finder - utility for discovery DAEnetIP4 and smartDEN devices in local network - here
  • DRMv3 Software - software for monitoring, control and configuration - here
  • DAE-aModules - App for Android mobile devices, support link here


Third party software


Software examples


We accept




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