How to read output variable of PLC program?

Discussion in 'Embedded Systems and Microcontrollers' started by harshalmj, May 4, 2009.

  1. harshalmj

    Thread Starter New Member

    May 4, 2009
    1
    0
    Hi,

    I am newbie in this PLC programming and I don't have much idea abt it. I have one PLC program developed using KW-Software. I am also using same software to deal with PLC prog. This PLC prog. has some input and some output now my first task in this PLC world is to read output variable.

    My question is how to read it? Which language or what mechanism will help me to read that output variable?

    If anyone of you can share a sample prog. to read out put variable then I really appreciate it.

    Thanks,
    HJ
     
  2. gryskop

    Member

    Mar 1, 2008
    26
    0
    What PLC family are you referring to?

    ABB
    Delta V
    Honeywell
    Rockwell (Alan Bradley)
    Siemens
    Toshiba
    Yokogawa

    etc.

    Each one of these companies have proprietary software, and for each of them the coding will be different. Some engineering software applications allow the user to view memory areas directly in a memory map area. With others a table with variables need to be setup for viewing. Not knowing the type of PLC, giving advice will be difficult.
     
  3. vinnygalbo

    New Member

    Aug 28, 2008
    4
    0
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Is it an analog or digital output?

    Is the PLC software using ladder?
     
  5. udsrasul

    New Member

    Oct 5, 2009
    1
    0
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