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Hi everyone,
Im trying to connect the 8870 to my cqc server with the following componants.
From the computer -
1) usb to rs-232 connected to a
2)
http://www.monoprice.com/products/produc...1&format=2
3) then via a 50 ft cat6 connected to a
4)
http://www.monoprice.com/products/produc...1&format=2
5) connected to
http://www.usconverters.com/index.php?ma...cts_id=181
6) Then ive wired the above from the D+/A D-/B GND to the A+ B- REF(ground) (all repectively) on the 8870
I get a computer connection icon on the 8870 but i cant access the variables on CQC even though the driver connects without issue.
im stuck.
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Did you read through the driver docs and whatnot? There are some things required, like setting a value in the thermos as to their address and indicating in the driver install what addresses are valid. Since there are multiple thermos, the driver doesn't go off or online because it can't find one, so that it doesn't prevent you from accessing one if another is having a problem. So it will come on line regardless. Put it into verbose mode and see if any useful info is forthcoming in the logs.
Dean Roddey
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I did -
I have the thermostat set number 1 of 1, 19200 baud.
here is the error message
04/04 19:44:51-media.esugar.local, CQCServer, CQCDrv_Thermo_Thread13
{
CQCGenDrvS, MEng.System.CQC.Drivers.Aprilaire.Thermo8870.DriverImpl.896, Status/App Status
Error initing thermo 1, marking it offline. Err=Timed out waiting for a message
}
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04-04-2011, 06:51 PM
(This post was last modified: 04-04-2011, 06:58 PM by zra.)
I simplifed the wiring
From the computer -
1) usb to rs-232 connected to a
http://www.usconverters.com/index.php?ma...cts_id=181
2) then via a 50 ft cat6 wired directly from the D+/A D-/B GND to the A+ B- REF(ground) (all repectively) on the 8870
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It looks like this thermostat cant be connected directly to a computer without the 8811 and the distribution panel. can anyone confirm this?
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zra Wrote:It looks like this thermostat cant be connected directly to a computer without the 8811 and the distribution panel. can anyone confirm this?
I believe that's true. It's an RS-485 type connection, right? Not an RS-232. The 8811 thing converts the computer's 232 connection to the right form.
Dean Roddey
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Dean Roddey Wrote:I believe that's true. It's an RS-485 type connection, right? Not an RS-232. The 8811 thing converts the computer's 232 connection to the right form.
it is, so i bought an rs-232 to rs-485 converter, but the wiring connectors are different on the converter than they are on the 8870
the converter has 4 terminals D+ D- GRD and 5v and the 8870 has and A- A+ B- B+ and GRD. do you think if i wire two wires from the D+ and two wires from the D- on the converter to the A- A+ B- B+ it might work?
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zra Wrote:it is, so i bought an rs-232 to rs-485 converter, but the wiring connectors are different on the converter than they are on the 8870
the converter has 4 terminals D+ D- GRD and 5v and the 8870 has and A- A+ B- B+ and GRD. do you think if i wire two wires from the D+ and two wires from the D- on the converter to the A- A+ B- B+ it might work?
Dunno about that. It might be safest to buy the Aprilaire one. You don't need the distribution panel, BTW. I wrote the driver without one. I just had the adapter.
Dean Roddey
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You might also check the
beta 8870 driver as it supports a bunch of things that the canned driver doesn't.
Russ...
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Well none of that worked, so i bought the 8811, but now im trying to figure out if i have to buy the distribution panel. I only need to connect two thermostats. Any ideas?
