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Up Next in Introduction to Allen Bradley PLCs - RSLogix 500

  • 9. IO Concepts

    There are two data files, O0, which stores values from digital output cards, and I1, which stores values from digital output cards.
    The addresses within each data file are set by the I/O rack and module in which the I/O card resides.
    The MicroLogix 1100 comes with 10 digital inputs, 2 analog inp...

  • 10. Forcing File Concepts

    There are two special files, called forcing files, one for inputs and one for outputs.
    These files are used for troubleshooting or when I/O is not available, such as when a sensor fails.
    The forcing files allow the value supplied by the I/O subsystem to be over-written by the programmer in orde...

  • 11. RSLogix File Structure

    In the last lesson, we briefly described the data files. Now, we will describe these files in more depth and show how they are used.

    Note that each data file is described by a letter followed by a number.

    The letter indicates the type of data represented by that file, and the number represents ...