RSLogix PLC Programming Memory instruction

  1. Run the software and start the off line programming module. Clear all of the memory and enter the following program.


Note how the bit addresses changes. In particular B3:1/2 changed from the word format to the bit count format B3/18. The calculation is 1*16 + 2 = 18.

  1. Download and run the program. In on-line programming mode, test the program to see how it behaves.

  2. Next, look at the values in the memory of the PLC. First look at the left-hand side of the screen. One of the sections is labeled “Data Files”, under this there is “B3: Binary”. Double click on this one to bring up a display window.