Pulse Monitoring scheme

Discussion in 'The Projects Forum' started by kalamboe, Jun 24, 2012.

  1. kalamboe

    Thread Starter New Member

    Jun 24, 2012
    2
    0
    I am trying to design a scheme to monitor 4 sets of pulses from relays. When a pulse comes in I want to time stamp the pulse to millisecond accuracy and send the information (time of pulse) to a PC in a comma separated file. Below is the format I want.

    Relay 1 Relay 2 Relay 3 Relay 4
    14:21.102 14:21.101 14:21.102 14:21.100
    14:21.106 14:21.105 14:21.103 14:21.101
    14:21.107 14:21.106 14:21.104 14:21.103


    What will be the best PIC for this kind of application. Your contributions, gurus out there, will be highly appreciated.
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,999
    745
    Can you give us a circuit dia,your going to be limited by the speed of the relays operating, can you not have an extra set of contacts on each relay voltage free? Then you could use the contacts directly on the pic..
     
  3. kalamboe

    Thread Starter New Member

    Jun 24, 2012
    2
    0
    You are right dodgydave, i intend to use voltage free contacts which are already available. Any ideas?
     
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