I am attempting to use the FAL instruction in 5000 to sum an array. The logic is running in a ControlLogix PLC. I have searched this forum and others, but cant seem to find an example of what i want to do. The array is 263 in length(263 foot conveyor). There is a scale on the conveyor that gives me LBS/FT and FT/S. I use that to calculate how fast I move the newest weight measurement into the array. I need to constantly sum the entire array to calculate the total weight on the conveyor. Does anyone have an example on how to sum an array using FAL? I want to use the FAL to make the code cleaner because I have to do this for multiple conveyors.