In the previous section of this course, we gave a tour of the RSLogix 500 output, input, and binary files. We demonstrated how individual elements of these file types are referenced, how to change the view of the data file from bitwise to decimal, and how to expand the size of certain data file types.
In this section, we will demonstrate:
How to address additional data file types in the MicroLogix 1100 PLC.
How to save the project to the programming PC.
The elements for the single timer that is configured by default include EN, TT, DN, BASE, PRE, and ACC.
A timer is used to control the timing of a logic event.
For a MicroLogix 1100, the Preset element can be set from 0 to 32767.
Each timer requires three words of memory.
The first word hol...
The counter structure is similar to that of the timer because it also has a preset and accumulator value, also called PRE and ACC.
There are several bits that are set by the counter, including:
CU for counting up,
CD for counting down,
DN to indicate that the counter has reached the preset val...
Control files are used in conjunction with complex data functions, like FIFO Load, Sequencer, and Bit Shift Left.
