BRX Do-More PLC High-Speed Input Pulse Catch

The High-Speed Input Pulse Catch will set an output that can be seen by the PLC ladder logic scan in response to an input pulse. Inputs that are too fast to reliably be seen by the ladder logic scan time will be seen. 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 continue looking at the high-speed inputs on our BRX Do-More PLC, by looking at the pulse catch mode. The pulse catch mode will be set up using the Z phase of our incremental encoder. Pulses will be counted using the input directly in the ladder logic and using the pulse catch bit. Comparisons will be made between the two counts and an output will be turned on when different. Let’s get started. 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-pulse-catch/ 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 PLC High-Speed Input Pulse Catch 01:50 Wiring Incremental Encoder to BRX Do-More PLC 03:16 High-Speed Input Pulse Catch Setup Programming 08:25 BRX Do-More PLC Scan Time Monitor 09:28 Hardware 10:02 Testing the High-Speed Input Pulse Catch Here are some of the individual posts with video links: Installing the Software https://accautomation.ca/brx-plc-installing-the-software https://youtu.be/iFI1ebP8Zkk Establishing Communication https://accautomation.ca/brx-plc-establishing-communication https://youtu.be/shU5g8MA8VM Numbering Systems and Addressing https://accautomation.ca/brx-plc-numbering-systems-and-addressing https://youtu.be/-GiKnIDycKY First Program https://accautomation.ca/brx-plc-first-program https://youtu.be/ANSNhdlm_Ao Monitoring and Testing the Program https://accautomation.ca/brx-plc-monitoring-and-testing-the-program https://youtu.be/gv3d0vozxac Online Editing and Debug Mode https://accautomation.ca/brx-plc-online-editing-and-debug-mode https://youtu.be/77pemu3zXrE Timers https://accautomation.ca/brx-plc-timers https://youtu.be/0qU9kgunPi4 Counters https://accautomation.ca/brx-plc-counters https://youtu.be/k84VQy8ifgg High-Speed IO https://accautomation.ca/brx-plc-high-speed-io https://youtu.be/6B5hp_Ri0Ls Compare Instructions https://accautomation.ca/brx-plc-compare-instructions https://youtu.be/CIDVcM0zszE Math Instructions https://accautomation.ca/brx-plc-math-instructions https://youtu.be/ZllosAv0DyY AdvancedHMI Communication – Modbus TCP https://accautomation.ca/brx-plc-advancedhmi-communication-modbus-tcp https://youtu.be/1TjsdLwTKM0 Dynamic Web Pages https://accautomation.ca/brx-do-more-plc-dynamic-web-pages/ https://youtu.be/WjiBED03BPY BRX Do-More PLC FTP Client Get Put https://accautomation.ca/brx-do-more-plc-ftp-client-get-put/ https://youtu.be/D6BX5dnut5U Do-More Designer Element Browser https://accautomation.ca/do-more-designer-element-browser/ https://youtu.be/DpI9_boBJzA BRX Do-More PLC High-Speed Input Counter https://accautomation.ca/brx-do-more-plc-high-speed-input-counter/ https://youtu.be/e8EvYulz3pg BRX Do-More PLC High-Speed Input Timer https://accautomation.ca/brx-do-more-plc-high-speed-input-timer/ https://youtu.be/_hlzyjdRHNg There are several reasons why we are using the BRX Series Controller. Here are just a few. - Standalone PLC with built-in I/O - Built-in Data Logging - Communication ability - Ethernet Port, RS232, RS485, USB - support for protocols such as Modbus RTU, Modbus TCP, ASCII, K-sequence (DirectLOGIC users), Custom Protocols (ASCII over serial, TCP or UDP over Ethernet) - Built-in Analog input and output - Integrated motion control - High-speed counters - Powerful instruction set (Video of Instructions in software) - Ability to expand the system with a variety of modules - Part of the Do-More series of PLCs which use the same free software. (Do-More Designer) - Integrated simulator in the software capable of external communications for testing The BRX series of programmable logic controllers consist of four different units. They differ depending on the Inputs and Outputs built into the unit and if it has the ethernet port. No I/O Micro PLC unit – (BX ME) 10 Point Micro PLC unit – (BX 10/10E) 18 Point Micro PLC unit - (BX 18/18E) 36 Point Micro PLC unit - (BX 36/36E) These CPUs (Central Processing Units) are also known as MPU (Multi-Processing Units) because of their communication capabilities. https://www.accautomation.ca