Voltage control over ethernet

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parsley

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#142869 27-Mar-2014 10:12

I'm looking for a ready made box that can be connected to ethernet and used to control a voltage supply (something like 0 to 24 volts) via a simple protocol. Does anyone know of anything like this? I found http://www.controlbyweb.com/ but their devices only act as relays (switching equipment on/off) rather than controlling the level.

Thanks for any suggestions.

deadlyllama

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#1013753 27-Mar-2014 11:07

What is your end goal here? What are you going to attach to this ethernet-controlled-voltage? How much current will it draw?

Also, I assume you're after DC rather than AC?

frankv

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#1013804 27-Mar-2014 12:21

Try Googling 'Ethernet control analogue output'.

e.g. http://www.acromag.com/catalog/312/Ethernet,Modbus_amp;_nbsp;Profibus_nbsp;_I_O/Ethernet_I_OModules/Analog_I_O/ES2172

parsley

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#1014023 27-Mar-2014 17:22

Sorry, I misunderstood the spec. It turns out I just need a dual-channel Ethernet relay that can connect two terminals to ground - no voltage or current required.

Any suggestions for an existing box that:
1. Doesn't cost a small fortune?
2. Is available in NZ (or reasonably quickly)?

Thanks.

frankv

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#1014028 27-Mar-2014 17:26

If you go to this thread http://www.geekzone.co.nz/forums.asp?forumid=73&topicid=113569 and can persuade Hamish to share the details of how to program them, the WiFi bridge will probably do what you want for a very reasonable price.

andrewNZ

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#1014030 27-Mar-2014 17:30

Sounds like you're looking for something in the home automation field.

parsley

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#1014423 28-Mar-2014 10:19

andrewNZ: Sounds like you're looking for something in the home automation field.

Probably, although the home automation units I've found so far are stupidly expensive. What would be ideal would be a hobbyist/DIY box.

I know the best way of doing this would be an Arduino or something like that, but we need this in a hurry.