BRX Do-More PLC Analog Input Scaling

504 views Oct 8, 2022

The BRX Do-More PLC analog inputs can have up to a 16-bit resolution depending on the analog current or voltage signal. These support a wide range of analog signals. The bit resolution refers to the binary bits for the input reference. If we look at the windows programming calculator and enter the binary value of 14 bits, we will get a decimal value of 16,383. This analog voltage of 0 to 5 volts DC is converted into 16,384 equal segments. The Do-More Designer Software has a linear scaling feature built in so that you can quickly convert your analog signal to engineering units or a percentage. Using the analog signal generator, you can see that our 0 to 5 volts DC signal convert from 0 to 100.0 percent. Our ladder logic program will use the compare instruction to activate outputs based on this linearly scaled signal. Programming and examples of the BRX Do-More series can be found at this URL: https://accautomation.ca/series/brx-do-more-plc/ There are several reasons why we are using the BRX Do-More 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