dbh6
Lifetime Supporting Member
Ok so this sounds really simple but its not working as i expect it. Their is a system variable called S:FS in logix that you can use as a bit which when the PLC is first powered up and enters its first scan that bit goes true only for the first scan. I wrote some logic such that when that bit was true, to initialize some parameters nothing complicated. Problem is it did not initialize my values i even wrote some logic to capture the transition of the pulse if it went from false to true, still nothing. I ended up writing my own logic to act as a first scan to get around that.
If anyone knows why I'm having this issue please let me know thanks.
If anyone knows why I'm having this issue please let me know thanks.