ETH484-B Ethernet Relay
Devantech
ETH484 upgrade - New Version
The ETH484-B is a drop in update of the ETH484 with additional upgrades.
New features and improvements over the ETH484 are:
- 100mb full duplex Ethernet connection (ETH484 was 10mb half duplex)
- Hostname is now configurable
- MQTT with optional TLS encryption
- Email added with optional TLS encryption
- 12bit analogue converter, but old commands still return 10 bit results for compatibility
Overview
| ETH484-B | |
|---|---|
| Analogue Inputs | 4 x 3.3v 12 bit or 10 bit for backward compatibility |
| Digital Switching I/O channels | 8 |
| Relays | 4 |
| Power | 12V DC adaptor, supplied separately |
| Interface | HTTP or TCP/IP over Ethernet |
| Relay current | Up to 16Amp @24vdc or 250vac |
| Connections | Screw Terminals for N/O N/C and Common contacts |
| Ethernet connection | 100mb full duplex |
Operating Temperature
-40°C to +70°C
LED indication
The ETH484-B provides a red LED mounted immediately next to each relay to indicate whether it is in a powered state(LED on), there is also two LED's mounted in the Ethernet connector which will flash with Ethernet traffic. Finally there is a green power LED just above the processor
Relay power rating
If the contact load voltage and current of the relay are in the region enclosed by the solid and dotted lines in the figure below, the relay can perform stable switching operation. If the relay is used at a voltage or current exceeding this region, the life of the contacts may be significantly shortened.
| load type | Typical applications | Rating | Max DC load capacity
|
| AC1 | Non inductive or slightly inductive loads |
16A @ 250V AC | |
| AC15 | Control of electromagnetic load (>72VA) |
3A @ 120V AC 1.5A @ 240V AC |
|
| AC3 | Control of motor | 750W | |
| DC1 | Non inductive or slightly inductive loads |
16A @ 24V DC | |
| DC13 | Control of electromagnetic loads |
0.22A @ 120V DC 0.1A @ 250V DC |
Download
A full datasheet for the relays used is here.
Power Relays
Four 16A volt free contact relays are provided for switching a common input between a normally closed output and a normally open output. The relay coil is powered by the 12vdc incoming supply on user command.
Connections
Mapped inputs
Digital inputs of the ETH484, ETH484-B, ETH044, ETH8020 or WIFI484 are able to be configured to remotely control outputs on all of Devantech's new ethernet relay boards (both wired and WIFI), the older ETH-RLY02 and ETH-RLY16 are not compatible however. The mapped inputs offer simple linking and versatile usage, an input in one country can control a output in another, or across a small network.
Possible target boards are:
The independent inputs can be mapped to different relays (on the same or different boards). In the "Address of target board", you can enter an IP address or hostname (which will be converted to an IP address by the DNS server supplied in the board configuration). If the module is on the local network then you can use the assigned IP address, if the target is over the internet then you need to supply the gateway in the configuration (internet source IP like your router) and the "Address of target board" is the IP address of the targets internet connection (to point at the router).
Board dimensions
Examples
Java - command line application for controlling the module
Perl - Simple example of setting an output active/inactive by tcp
PHP Script - Simple example of setting an output active/inactive by tcp
Python V2 - command line application for controlling the module
Python V3 - command line application for controlling the module
Visual C# - source code for simple program, includes UDP scan to determine any boards connected to the local network
IO Network - Android and iPhone App
Devantech created the free app 'IO network', available for Android and iPhone to remotely control your relays. Download it from Google Play or iTunes. Search for "Devantech" and you will find the app.
IO Network documentation for Android
IO Network documentation for iOS
Technical Specifications Manufacturer
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Product information for: ETH484-B - Ethernet Relais Modul
Publishing date (date of last technical specification): 2021-03-11
Length: 143 mm
Width: 84 mm
Weight: 150 g
Shipping weight: 200 g
Manufacturer: Devantech
Brand: ROBOT ELECTRONICS
Article number: DEV-ETH484-B
Manufacturer's part number: ETH484-B
The article ETH484-B - Ethernet Relais Modul is listed in the following categories:
Modules > Relay > Ethernet
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updated: 17.11.2023
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About ROBOT ELECTRONICS
ROBOT ELECTRONICS is a brand by English manufacturer Devantech Ltd., based in Norfolk. Product range comprises sensors, in particular ultrasonic or compass, servocontrollers as well as small robot drive systems or relay modules with various interfaces. Sensors are produced in England and are of consistently high quality.
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