Title: Lesson
Course: Programmable Logic Controls (IC 107-IC 107) > Section: Web Content

The sequencer instruction evolved from the mechanical drum switch, and it can handle complex sequencing control problems more easily than does the drum switch. Shift registers are often used to track parts on automated manufacturing lines by shifting either status or values through data files. So in this lesson you will be introduced to how PLC sequencer and shift register functions operate and how they can be applied to control problems.
Programmable Logic Controllers - Chapter #12                        Sequencer and Shift Register Instructions
There is a power point for this chapter located in the "Handout" section.  A reminder that the power points for this class require extra load and view time
The videos below have further explanation for sequencers and shift registers
In the coursework section you will find details to the following assignments:
Problems 2 and 3 from the end of chapter #12 of the PLC textbook.
Part 2 of the silo fill LogixPro program design.
Two Advanced faults in the Troubleshooting PLC Circuits software.