Re: [foxboro] One IND block per compound -- still true?

Re: Using HLBL
Free advice and worth what you are paying for it.

AJ

1 line of HLBL code is roughly the same load as an AIN block.

External OM variable references, e.g., :C:B.P when the compound is in a 
different CP, suspend the block for one full block period. Thus, 20 lines 
setting values will take 10s to execute if the PERIOD is 0.5s.

Internal block references don't suspend the block, but they are slower than you 
might expect and will have an impact on your loading if you have enough of them.

Remember that code runs until it hits a WAIT, WAITUNTIL, External Reference, or 
BPCSTM is reached.

Remember that if you don't loop you code back to the top (yes, with a GOTO), it 
will reach the end of the block and stop.

Remember that ACTIVE and MA must both be set to true for the block to run.




-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx on behalf of Duc M Do
Sent: Thu 9/25/2008 7:12 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] One IND block per compound -- still true?
 
On Thu, September 25, 2008 7:29 pm, Corey R Clingo wrote:

> OK, I might be turning into an HLBL crackhead :)

He's done step over to the dark side!

> I never saw any mention of the 1-IND-per-compound restriction I've
> heard for all these years, and so I wonder if that limit is still
> real?

I've never heard of that limit. And we have many, many instances of
multiple IND blocks in a compound. Code away!

One thing I'd caution you, be it that you are a neophyte at HLBL. The
default BPCSTM is (IIRC) 100. If you don't change that default to
something reasonable *and* if your codes loop infinitely without a WAIT
statement, you'll drag your CP to its knee in no time flat.

It's good to learn from your mistake; it's better to learn from others'.

Duc




 
 
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