I’m trying to create a FIFO inside of a template (no external storage to a DB or PLC) where I can read and write as needed. Basically, I want to create a rolling-hour FIFO (sixty integer registers) where I can capture the status of a bit every minute. When a minute elapses, the data will shift (FIFO[58] moves to FIFO[59], FIFO[57] moves to FIFO[58], and so on] and then the bit status from the previous minute is written to FIFO[0]. One minute later, it happens again. If I can create this, then I will take the sum of all registers to display the “current” hourly status of that condition (ie. “RUNNING” for 18 of the last 60 minutes). I intend to replicate this and no PLC or database needs this data, I really want all inside Ignition and within a template.
Anybody have or know of a solution?
