Industrial Automation: An introduction to the Pltouch

Pltouch processors schemaHome and industrial automation projects employ a big set of products, such as sensors, touch screens, external modules, PLCs and HMIs in order to solve specific problems and dealing with special requirements. The current scenario shows that the logic and the user interface are frequently managed by different components, using a common bus in order to communicate and modify statuses. 

Based on this state of the art, our research and development lab, designed and created a brand new product with the aim of merging some of the products presented above, in order to reduce complexity, enhance user interface experience and especially reduce the costs.

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Android Industrial: AC Drive over rs485

The following video represents an example of HMI in Industrial applications. In particular, in this project I used an Android multi touch that runs on Cortex A8 at 1Ghz and show how it can greatly control an AC drive. Specifically, I used a Allen-Bradley adjustable frequency AC drive.

The Android UI on the touch screen device allows to:

  • Start/Stop the motor
  • Set the direction (forward, backward)
  • Manage the output relay
  • Control the status of the digital inputs
  • See the parameters such as the current, frequency and output voltage
  • Set the motor frequency

You’ll find the source code and complete specifications of the project on my github channel. Don’t miss to check it out also our wiki section! As usual, comments are welcome 🙂