ganutenator
Lifetime Supporting Member
Having trouble getting this afi instruction to go true.
How do you program this thing to go true?
How do you program this thing to go true?
Having trouble getting this afi instruction to go true.
How do you program this thing to go true?
since it's normally FALSE - you have to enter it backwards to make it TRUE ...
try putting it in as ---[IFA]--- and see if that works ...
...because the prescan doesn't "solve" the logic, it just resets non-retentive "bit-boxes" (those that are attached to OTE instructions).not sure whether this is serious or not - but just in case it is, maybe this will (hopefully) clarify:
an "Unlatch" (specifically, an OTU instruction) doesn't/won't/can't "do" anything on Prescan - whether the rung conditions leading up to the OTU are TRUE or whether they're FALSE doesn't make any difference ...
specifically, during Prescan the OTU instruction will NOT write to its assigned bit/box ... no ONE ... no ZERO ... no NUTHIN ....
one day Ron will refer to his bit/boxes as "memory locations". That might be a sign the world is about to end, lol
The Automation Direct DL series has a collection of SPecial relays. Among these are Always ON and Always OFF.some other brands (I seem to remember an old Texas Instrument platform) actually did have an Always True instruction ...
The Automation Direct DL series has a collection of SPecial relays. Among these are Always ON and Always OFF.
your Avatar rocks!
but didn't they set the EN bit on stuff during the prescan?
Avatar still updates while Doug-P (DOUG-PLC) is offline. Hmmm. How does that work?