code: def populate(self, priority, address, rtr, data):
          
          assert isinstance(data, bytes)
          self.needs_no_rtr(rtr)
          self.needs_data(data, 7)
          self.set_attributes(priority, address, rtr)
          self.channel = (data[0] & 0x03) +1 
          self.pulses = (data[0] >> 2) * 100
          self.counter = (data[1] << 24) + (data[2] << 16) + (data[3] << 8) + data[4]
          self.delay = (data[5] << 8) + data[6]
docs: -DB1    last 2 bits   = channel
          -DB1    first 6 bist  = pulses
          -DB2-5                = pulse counter
          -DB6-7                = ms/pulse               
          :return: None