I think the Carrier Infinity modules have been a problem for a long time. Or should I say, the Carrier Infinity control boards.
Here's a thread from a couple years ago where I was able to capture some erroneous serial strings coming off the integration panel. You might try to duplicate these results, if possible. I gave up on it at the time.
And another thread that didn't really go anywhere, but explains the real problem with the modules is that they aren't handling the NAK responses correctly.
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--- In Crestron@..., "Jeff" <jeff@...> wrote:
Hi,
I'm using the Carrier Infinity module from Crestron (v2), and I'm having
one heck of a time with it. I thought I'd reach out to this group for
ideas.
Fundamental problem: The module works for a while, then stops querying
the HVAC system for information. This can happen in a few hours after
boot, or as long as a few days. But eventually, it happens. The
obvious result is that displayed data becomes stale.
When this occurs, if I do something to change the state of the system
(put a zone in HOLD mode, say), then the module will start communicating
again. Until it stops again at some later time.
Things I have tried to resolve this:
1. First occurred on PRO2. Upgraded to PRO3, no change.
2. Modified code to run in separate "slot" of PRO3 (as a separate
program). No change.
3. Put the code on a QM-RMC running older (v3) firmware. No change.
4. Went to Carrier to report the problem, they said Crestron supports
the module.
Worked with Crestron. This is ongoing, no solution (yet). I did get a
BETA version (v2.3, not on the WWW site yet), but this occurs as well.
I believe Crestron verified that they can replicate the problem, but
there is no solution as of yet.
I did recently upgrade to the Infinity Touch control, which (presumably)
allows me to use the Crestron Infinity Touch module (although, with the
same SAM board, the old module works perfectly). I can try that if
folks are having better luck with that.
Any suggestions would be appreciated. Thanks so much!
/Jeff
