Module: AgriController::Dacs

Defined in:
lib/agri-controller/device/dacs.rb

Overview

use Dacs_32bit_I/O_photoMOS_reray on usb_serial_port (win,linux compatible) *Usage

requrie "agri-controll"
include AgriController
include Dacs # also use Dacs::

Windows

export is a simple IO_command send(set),and recieve(import) search com_port(3-19) and communicate export(“ffffff”)# =>“R0FFFFFF&”

com_port number recommended com_port=6 #(see system infomation)

export("ffffff",com_port,0)#return =>"R0FFFFFF&"
export("000000",com_port,0)#return =>"R0FFFFFF&"
export("R",com_port,1)     #return =>"R883DFFF&"
export("R",com_port)       #return =>"R0FFFFFF&"

hex_6 ex. # =>“FBD017”,“ffffff” recieve only.# =>“R”

Linux

include dacs
export("W0FFFFFF\r","ttyUsb0") 
import("R0R\r")

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.sample ⇒ Object 



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# File 'lib/agri-controller/device/dacs.rb', line 137

def sample
  "W0FFFFFF\r"
end

.toi(res) ⇒ Object 



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# File 'lib/agri-controller/device/dacs.rb', line 128

def toi(res)
  begin
    bit=res.slice(2,6).to_i(16)
    return bit
  rescue
    nil
  end
end

Instance Method Details

#export(command, device) ⇒ Object

should be Linux



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# File 'lib/agri-controller/device/dacs.rb', line 124

def export(hex_6,com_port=port?,io_port=0,dip=0)
  #hex_6
  #ex.          # =>"FBD017","ffffff"
  #recieve only.# =>"R"

  case io_port
  #io_port must be io_port*8+dip_switch(on board)
  when 1
    io_port=8*io_port+dip#2nd word
  else#io_port should be 0
    io_port=dip#2nd word
  end
  a=Serial.new
    #search COM port 3-9
    if a.open(com_port,0,57600,8,0,0,4096,4096)!=-1
      command="W#{(io_port).to_s}#{hex_6}\r"
      
      yield command if block_given?
      #p command
      a.send(command)
      sleep 0.04
      receive=a.receive
      a.close
      return receive
    else
      return false
    end
  nil
end

#import(com_port = port?,i, io_port = 0, dip = 0) ⇒ Object 



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# File 'lib/agri-controller/device/dacs.rb', line 109

def import(com_port=port?,io_port=0,dip=0)
  export("R",com_port,io_port,dip)
end

#import_bit(com_port = port?,i, io_port = 0, dip = 0) ⇒ Object 



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# File 'lib/agri-controller/device/dacs.rb', line 113

def import_bit(com_port=port?,io_port=0,dip=0)
  
  port_bit=import(com_port=port?,io_port,dip)
  if port_bit
    import_bits=port_bit.slice(2,6).to_i(16)
  else
    import_bits=0
  end
  return import_bits
end

#port?(x = 3) ⇒ Boolean

search ports COM3-19 if sucsess return int(port number) else return nil.

Returns:

  • (Boolean) 


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# File 'lib/agri-controller/device/dacs.rb', line 73

def port?(x=3)
  a=Serial.new
    #search COM port 3-19
    bool=false#serch flag
    
    while bool==false
      x+=1
      if x > 20
        return nil
      end

      if a.open(x,0,57600,8,0,0,108,324) == -1
        if x > 20
          return nil
        end
      else
        a.send("W0R\r")
        sleep 0.1
        receive=a.receive#should_be "R0xxxxxx\r",x=hex
        #p receive.split(//).last
        #p x
        #p receive
        if receive
          if receive.split(//).last=="\r"
            if receive.split(//).first=="R"
              bool=true
            end
          end
        end
        a.close
      end
    end

  return x
end