Devantech ETH002 Ethernet - 2 x 16A relay module

Sale:
$57.50

The ETH002 Ethernet relay board has 2 voltage-free contact SPCO relay outputs with a current rating of up to 16A each, all controlled over TCP/IP via Ethernet. It’s powered via a 12VDC supply, which can be either regulated or unrelated, and the 2.1mm DC input jack has a positive core polarity. 

R373-ETH002
Manufactured by

The ETH002 Ethernet relay board has 2 voltage-free contact SPCO relay outputs with a current rating of up to 16A each, all controlled over TCP/IP via Ethernet. It’s powered via a 12VDC supply, which can be either regulated or unrelated, and the 2.1mm DC input jack has a positive core polarity. This ETH002 Ethernet module is compatible with ETH-RLY02 and includes the legacy command set. As an upgrade over the ETH-RLY02, this board offers a full factory reset to reset all of the firmware and settings back to the originals, firmware updates for new features, a new command format for future compatibility, and TCP/IP password protection that’s independent of the configuration password.

The relays are SPCO (Single Pole Change Over) types. The normally open, normally closed and common pins are all available on the screw terminals.

Operating Temperature

-40C to +70C

Board Dimensions

LED Indication

The ETH002 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 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
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

Precision case

Can be purchased separately .

  • Full Factory Reset, all ETH002 firmware and settings can be reset to the original state.
  • Firmware updates, firmware in the ETH002 is fully updatable by re-flashing the board with our custom windows program. This will be made available in the event of feature updates.
  • New Command Format, the new command format allows for consistent compatibility with future boards. New commands now allow for pulsed control of relays from 100ms to 25.5 seconds
  • TCP/IP Password Protection, it is now possible to set a password for TCP/IP protection. This is independent of the configuration password.
  • Controlled over TCP/IP via Ethernet.
  • Send commands through your local network or Internet to the board.
  • Once on the network, commands can be sent to control the relay from within the network or from outside over the Internet
Applications

Configuration

By clicking the configuration link it's possible to configure the ETH002 IP address and subnet mask together with the ability to set a password for entry to control screens. The ETH002 now also offers the option to set a password that will be required to change any of the relay states using TCP IP commands, this is explained in the TCP/IP password section.
All settings are saved to memory so be careful to remember the username and password! Default password settings are shown in the picture below. 
Version 2 now offers a latched outputs option, this will automatically save any permanent output changes (not pulsed) and restore them following power loss.

Factory Reset

Should it be necessary to reset the ETH002 to its shipped condition then the end two contacts (on the text side) of the row of 5 holes next to robot-electronics.co.uk text must be shorted together at board power up. The green LED should then flash as the settings are reset, please wait until the LED finishes flashing and do not remove power during this period.

ETH002 Command Set

The ETH002 has a new and enhanced command set designed to provide consistent expansion and new features. They are sent over TCP/IP on port 17494 (0x4456). This is the default port, it can be changed in the configuration settings.

Command Action
dec hex  
16 10 Get Module Info, returns 3 bytes. Module Id (18 for ETH002), Hardware version, Firmware version.
32 20

Digital active- follow with 1-2 to set relay on, then a time for pulsed output from 1-255 (100ms resolution) or 0 for permanent

Board will return 0 for success, 1 for failure

33 21

Digital inactive- follow with 1-2 to turn relay off, then a time for pulsed output from 1-255 (100ms resolution) or 0 for permanent

Board will return 0 for success, 1 for failure

35 23

Digital set outputs - the next single byte will set all relays states, All on = 255 (xxxxxx11) All off = 0

Board will return 0 for success, 1 for failure

36 24 Digital get outputs - send a single byte back to the controller, bit high meaning the corresponding relay is powered
58 3A ASCII text commands (V4+) - allows a text string to switch outputs, see section below
119 77 Get serial number - Returns the unique 6 byte MAC address of the module.
120 78 Get Volts - returns relay supply voltage as byte, 125 being 12.5V DC
121 79 Password entry - see TCP/IP password
122 7A Get unlock time - see section below
123 7B Log out - immediately re-enables TCP/IP password protection
Characteristics
Relays 2
Power 12VDC adapter, >500mA (not included)
DC Plug Type Type A: 5.5mm OD, 2.1mm ID (IEC 60130-10:1971)
Configuration & Test Interface HTTP (webpage)
Control Interface TCP/IP over Ethernet
Relay Current Up to 16A @ 24VDC or 250VAC
Connections Screw Terminals for N/O, N/C and common contacts