[Hai-users] Thermostat to expansion cabinet

[John Purnell]

I have a separate pole barn/shop with an expansion cabinet in it, 
hooks to the OP2 with cat5 underground. I want to put an omnistat in 
the shop so I can easily do programmed heat scenarios instead of just 
a simple mechanical "relay" timing that works now.

I've scanned the manuals and I don't see that I can hook the 
communication of an omnistat up to an expansion cabinet? I forgot 
that the omnistat does NOT use the rs485 com A/B/Gnd for 
communication, but instead I think they all hook to output 8 and 
input 16 or something like that. So then you give multiple Tstats 
separate addresses, 1,2,3 etc...

but I was hoping to wire the Tstat direct to my remote expansion 
cabinet? Am I missing something? Anyone doing this? I just don't see 
anything in the books that shows I can do this. It appears to me I 
need to bring the Tstat comm back all the way direct to the OP2?

John.
N9EM
gettin' colder here in Wisconsin.
CQ DX