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