PeterW
Member
Has anyone used multiple Jump to Label instructions in Control Logix and if so, have you noticed a scan issue the more you use.
a colleague was testing a theory in an effort to reduce scantime and found the scan of the PLC (an L63) raised to above 200mS when jumping code, instead of the expected lowering of the scantime.
His test including jumping multiple times in 100 routines, which gave approx 900 jumps altogether.
He stated that the more JMP>LBL pairs the worse the scan got.
So has anyone else experienced this and what's the likely cause?
a colleague was testing a theory in an effort to reduce scantime and found the scan of the PLC (an L63) raised to above 200mS when jumping code, instead of the expected lowering of the scantime.
His test including jumping multiple times in 100 routines, which gave approx 900 jumps altogether.
He stated that the more JMP>LBL pairs the worse the scan got.
So has anyone else experienced this and what's the likely cause?