BRX Do-More PLC High-Speed Input Counter

The BRX Do-More series of programmable logic controllers have built-in high-speed inputs. These inputs can function in Counter, Timer, or Pulse Catch modes. Every CPU will have either 6 or 10 high-speed inputs (HSI) available depending on the model. These inputs can be used for input frequencies from 0 to 250Khz. 250Khz represents 250000 input counts per second that can be coming from devices connected to your PLC like an encoder. Due to the speed of the inputs, they function on the BRX Do-More PLC asynchronous with the PLC scan time. We will be looking at the wiring of an incremental encoder to our BRX Do-More PLC. The A, B, and Z phases will be connected. Using the high-speed input menus in the Do-More Designer programming software we will specify the counter mode of operation. We will also scale the input so we can determine the revolutions per minute (RPM) rate. This will be monitored on our data view window. Let’s get started with the BRX Do-More PLC High-Speed Input Counter. More information can be obtained on our website. This includes all of the links mentioned in this video. https://accautomation.ca/brx-do-more-plc-high-speed-input-counter/ The entire BRX Series PLC can be found at the following location: https://accautomation.ca/series/brx-do-more-plc/ 00:00 BRX Do-More High-Speed Input Counter 01:43 TRDA-2E Series Incremental Encoder 03:55 TRDA-2E Series Timing Chart 06:04 Wiring Incremental Encoder to BRX Do-More PLC 07:26 Hardware 08:06 BRX Do-More High-Speed Input Counter Programming 18:48 BRX Do-More Sample Ladder Logic 20:14 Testing the BRX Do-More High-Speed Input Counter Here are some of the individual posts with video links: Installing the Software