Do-More TIMEPROP - Time Proportional Control Instruction

Do-More TIMEPROP - Time Proportional Control Instruction The Time Proportional Control (TIMEPROP) instruction converts the continuous control output variable (interpreted as a percentage) to a time proportioning control value suitable for a discrete output. Cycle Time specifies the time divided into the ON and OFF portions. Three seconds is used in our example. The continuous input in our example comes from the analog input WX0, which ranges from 0 to 4095. This analog range is used as the 0% minimum and 100% maximum ranges. Our output is Y0. Y0 will cycle on and off every 3 seconds based on the percentage of our analog input. The output will always be off if the analog input value is 0. If the analog input value is 4095, the output will be on all the time. An analog input value of 2048 will be about half of the input so that the output will be on 50% of the time or 1.5 seconds of the total 3-second cycle time (Control Period) Time-proportional control is a form of pulse-width modulation. 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)