BRX Do-More PLC Compare Instructions

We will now look at the compare instructions in the BRX Do-More controller. Compare instruction is often used in PLC programs to test pairs of values. The output of this comparison conditions the logical continuity of a rung. The BRX series of programmable logic controllers have the following compare contact instructions. = (if Equal contact) <> (if Not Equal contact) > (if Greater Than contact) >= (if Greater Than or Equal contact) < (if Less Than contact) <= (if Less Than or Equal contact) Besides these instructions, the BRX Do-More PLC will also have compare instructions for the built-in real-time clock of the system. We will be looking at these instructions along with some programming examples. As a system integrator, this ability can prove very useful to you in the field when commissioning your automation system. Let's get started with the BRX PLC Compare Instructions. More information can be obtained at our website. This includes all of the links mentioned in this video. https://accautomation.ca/brx-plc-compare-instructions Previously in this BRX Do-More Series PLC, we looked at the following: System Hardware https://accautomation.ca/brx-plc-system-hardware System Hardware Video https://youtu.be/wSYgY09VYeA Unboxing Video https://youtu.be/-Tf8m3BqzPo Installing the Software https://accautomation.ca/brx-plc-installing-the-software Installing the Software Video https://youtu.be/iFI1ebP8Zkk Establishing Communication https://accautomation.ca/brx-plc-establishing-communication Establishing Communication Video https://youtu.be/shU5g8MA8VM Updating Firmware Video https://youtu.be/gsfcGGK4-Sk Numbering Systems and Addressing https://accautomation.ca/brx-plc-numbering-systems-and-addressing Numbering Systems and Addressing Video https://youtu.be/-GiKnIDycKY First Program https://accautomation.ca/brx-plc-first-program First Program Video https://youtu.be/ANSNhdlm_Ao Monitoring and Testing the Program https://accautomation.ca/brx-plc-monitoring-and-testing-the-program Monitoring and Testing the Program Video https://youtu.be/gv3d0vozxac Online Editing and Debug Mode https://accautomation.ca/brx-plc-online-editing-and-debug-mode Online Editing and Debug Mode Video https://youtu.be/77pemu3zXrE Timers https://accautomation.ca/brx-plc-timers Timers Video https://youtu.be/0qU9kgunPi4 Counters https://accautomation.ca/brx-plc-counters Counters Video https://youtu.be/k84VQy8ifgg High-Speed IO https://accautomation.ca/brx-plc-high-speed-io High-Speed IO Video https://youtu.be/6B5hp_Ri0Ls 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 an 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 the communication capabilities. https://www.accautomation.ca