Driving Many relays


    Jan 15 2007 | 3:22 pm
    Hi,
    I'm looking at driving around 200 relays in an installation. Does anybody know a digital out board with more than 8 or 16 outs with a max object to talk to it?
    Thanks
    LP __________________________ Louis-Pierre Morin [毛路薏] e-mail - lpmorin@gmail.com cell. - (514) 815-4889 skype - nirom4889

    • Jan 15 2007 | 4:09 pm
      the wiring board has 43 digital in/outs
      you can use the serial object to talk with it.
      On 1/15/07, Louis-Pierre Morin wrote: > Hi, > > I'm looking at driving around 200 relays in an installation. Does anybody > know a digital out board with more than 8 or 16 outs with a max object to > talk to it? > > Thanks > > LP
    • Jan 15 2007 | 4:34 pm
      Louis-Pierre Morin wrote: > Hi, > > I'm looking at driving around 200 relays in an installation. Does > anybody know a digital out board with more than 8 or 16 outs with a max > object to talk to it?
      Get three of these: http://botex.com/4/me72.html
      They have 72 outputs each and can accept MIDI or DMX as input.
      Olaf
    • Jan 15 2007 | 4:43 pm
      Hi Louis-Pierre
      Are you thinking of having enough drives from your board(s) for all those relays? I think in this case I would multiplex them. This needs a bit more circuitry, but I think with that many relays your will need more drive than you get from a typical I/O board anyway. You can then use eight address lines to access the desired relay and only 1 data line. Simple 1 bit latches are easy to implement and the de- multiplexing is pretty straightforward too. Then you don't need lots of output boards. Just a thought.....
      Best
      L
      On 15 Jan 2007, at 15:22, Louis-Pierre Morin wrote:
      > Hi, > > I'm looking at driving around 200 relays in an installation. Does > anybody know a digital out board with more than 8 or 16 outs with a > max object to talk to it? > > Thanks > > LP > __________________________ > Louis-Pierre Morin [毛路薏] > e-mail - lpmorin@gmail.com > cell. - (514) 815-4889 > skype - nirom4889 >
      Lawrence Casserley - lawrence@lcasserley.co.uk Lawrence Electronic Operations - www.lcasserley.co.uk Colourscape Music Festivals - www.colourscape.org.uk
    • Jan 15 2007 | 4:48 pm
      Quote: lpmorin@gmail.com wrote on Mon, 15 January 2007 08:22 > anybody know a digital out board with more than 8 or 16 outs with a > max object to talk to it? >
      The fastest, easiest hack way to do this is to buy an led-display sign and hack the lines going to the lights.
      The normal way is to build a board consisting of a micro-controller (avr's are nice; take a look at the www.chip45.com offers) and set up a series of multiplexers/demultiplexers depending on your task. Use [serial] to handle communication.
      The "Wiring" board seems nice, and the price is alright, but I have no experience with them.
      As an idea of what you will need: a matrix of 6 74374 dmux chips will require 13 inputs to control 48 outputs. The "Wiring" board has 43 outputs, so you could control at least 18 mux's controlling a total of 144 relais.
      There are commercially available led-matrix controllers and decoders which can also be used to drive relais.
      In any case, [serial] is usually the max tool you will need.
    • Jan 15 2007 | 7:05 pm
      i think Dayton suggestion of hacking a led matrix is an excellent idea.
      if your going to build your own i had the pleasure of working with the midibox, which comes in a lot of variants. the one i used is the MIDIO128, which allows up to 128 digital outputs per midi channel. i used them all to build a motion sensing carpet. http://www.ucapps.de the forums there are full of helpful people. the hardware is relatively cheap (you can buy an etched board and stuff it yourself)
      On 1/15/07, Dayton wrote: > > > Quote: lpmorin@gmail.com wrote on Mon, 15 January 2007 08:22 > > anybody know a digital out board with more than 8 or 16 outs with a > > max object to talk to it? > > > > > The fastest, easiest hack way to do this is to buy an led-display sign and > hack the lines going to the lights. > > The normal way is to build a board consisting of a micro-controller (avr's > are nice; take a look at the www.chip45.com offers) and set up a series of > multiplexers/demultiplexers depending on your task. Use [serial] to handle > communication. > > The "Wiring" board seems nice, and the price is alright, but I have no > experience with them. > > As an idea of what you will need: a matrix of 6 74374 dmux chips will > require 13 inputs to control 48 outputs. The "Wiring" board has 43 outputs, > so you could control at least 18 mux's controlling a total of 144 relais. > > There are commercially available led-matrix controllers and decoders which > can also be used to drive relais. > > In any case, [serial] is usually the max tool you will need. >
    • Jan 16 2007 | 2:02 pm
      The gluion has 68 I/O pins of which 66 can be configured as outputs. So you'd need 3 of them.
      Alternativaly you could connect simple serial shift registers, as the gluion's outputs are not simply on/off but can carry almost any digital format. I had an installation once were we connected 16 CMOS4094 for a total of 128 outputs. So for 200 outputs you'd need 25. Your box gets a bit bigger but overall costs are probably a bit lower.
      Let me know if you need more details.
      cheers, Sukandar
      On 15.01.2007, at 16:22, Louis-Pierre Morin wrote:
      > Hi, > > I'm looking at driving around 200 relays in an installation. Does > anybody know a digital out board with more than 8 or 16 outs with a > max object to talk to it? > > Thanks > > LP > __________________________ > Louis-Pierre Morin [毛路薏] > e-mail - lpmorin@gmail.com > cell. - (514) 815-4889 > skype - nirom4889 >
    • Jan 17 2007 | 4:32 pm
      Thanks for all of your suggestions. The idea of hacking a led matrix is indeed excellent.
      LP
      On 16-Jan-07, at 9:02 AM, Sukandar Kartadinata wrote:
      > The gluion has 68 I/O pins of which 66 can be configured as > outputs. So you'd need 3 of them. > > Alternativaly you could connect simple serial shift registers, as > the gluion's outputs are not simply on/off but can carry almost any > digital format. I had an installation once were we connected 16 > CMOS4094 for a total of 128 outputs. So for 200 outputs you'd need > 25. Your box gets a bit bigger but overall costs are probably a bit > lower. > > Let me know if you need more details. > > cheers, > Sukandar > > > On 15.01.2007, at 16:22, Louis-Pierre Morin wrote: > >> Hi, >> >> I'm looking at driving around 200 relays in an installation. Does >> anybody know a digital out board with more than 8 or 16 outs with >> a max object to talk to it? >> >> Thanks >> >> LP >> __________________________ >> Louis-Pierre Morin [毛路薏] >> e-mail - lpmorin@gmail.com >> cell. - (514) 815-4889 >> skype - nirom4889 >> >
      __________________________ Louis-Pierre Morin [毛路薏] e-mail - lpmorin@gmail.com cell. - (514) 815-4889 skype - nirom4889