User guide

A–B
16
Chapter
16–1
Bit Instructions
This chapter covers the bit instructions with fixed, SLC 5/01, and SLC 5/02
processors:
• Examine if Closed (XIC)
• Examine if Open (XIO)
• Output Energize (OTE)
• Output Latch (OTL)
• Output Unlatch (OTU)
• One–Shot Rising (OSR)
Bit instructions operate on a single bit of data. During operation, the
processor may set or reset the bit, based on logical continuity of ladder rungs.
You can address a bit as many times as your program requires.
The following data files use bit instructions:
• output and input data files. The instructions represent external outputs
and inputs.
• the status data file
• the bit data file. Use these instructions for the internal relay logic of your
program.
• timer, counter, and control data files. The instructions use various control
bits.
• the integer data file. The instructions are used (on the bit level) as your
program requires.
Bit Instructions Overview