Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers - Manual (Page 101)

Using Basic Instructions
6–3
Bit Instructions Overview
These instructions operate on a single bit of data. During operation, the controller
may set or reset the bit, based on the logical continuity of ladder rungs. You can
address a bit as many times as your program requires.
Note Using the same address with multiple output instructions is not recommended.
Bit instructions are used with the following data files:
•
Output and input data files. These represent external outputs and inputs.
•
The status data file (file 2).
•
The bit data file (B3:). These are the internal coils used in your program.
•
Timer, counter, and control data files (T4:, C5:, and R6:). These instructions
use various control bits.
•
The integer data file (N7:). Use these addresses (at the bit level) as your
program requires.
Programming