Good morning everyone!
After reading the postings of the last couple of days, I feel emboldened to
share some of my troubles with you all.
I'm trying to pass the "PRIBLK" initialization request and acknowledgment
bits between one controller and two output blocks. The application is a
split-range controller, with the PID output going through two CHARC blocks
to two AOUT blocks. I'm calculating the BCACLI input for the PID block
explicitly in a CALC block, using the BCALOs from the CHARC blocks.
This is straightforward enough, and normally I would do without the PRIBLK
functionality, because all blocks are running in one compound, at the same
period and phase. But unfortunately, the CHARC doesn't seem to recalculate
it's BCALCO unless PRIBLK is set.
I've come up with a way around, using dummy BIAS blocks to terminate the
initialization chains, but I would really like to be able to pass the BCALC
status bits from both CHARC blocks through to the PID.
Does anyone have a way of explicitly handling the initialization and
acknowledgment bits in a CALC block?
Many thanks,
Con O'Brien
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