The PLC productivity series includes a Drum and Sequencer instruction that can be very useful. The Drum instructions function similarly to an electromagnetically-operated drum sequencer. To better understand this concept, consider the mechanics of a music box. A small drum with pegs catches and flicks the chimes in a specific sequence to produce a tune. Similarly, in a PLC, you can have a drum activated either by an event (such as input from a limit switch or button) or by time.
The functionality of sequencers is comparable to that of drum instruction. A sequencer enables users to define each step based on time and/or event, and specific outputs can be configured to activate when entering or exiting the step. However, sequencers can produce up to 16 Boolean, Integer, or Numerical Tags per step in their output. On the other hand, drum instruction outputs are limited to the same 16-bit (Boolean) outcomes.
We have done similar Drum instructions for the BRX Series and Click PLC.
https://accautomation.ca/series/brx-do-more-plc/
https://accautomation.ca/series/click-plc/
We will discuss the drum and sequencer instructions in the Productivity 2000 Series PLC. Simple examples will be given to demonstrate the power of these instructions. Let’s get started.
Detailed information can be found on our website. The post for this video is located here:
https://accautomation.ca/productivity-2000-plc-drum-sequencer-instructions/
00:00 Productivity 2000 PLC Drum Sequencer Instructions
01:50 P2000 Drum Instruction
04:21 P2000 Sequencer Instruction
The Productivity 2000 Series PLC is located here:
https://accautomation.ca/series/productivity-2000-series-plc-p2000/
Previously in this Productivity 2000 series PLC, we have discussed:
P2000 Hardware Features
https://accautomation.ca/productivity-2000-series-plc-p2000-hardware/
