bipto Posted November 17, 2015 Posted November 17, 2015 In migrating my programs to Nodelink, I noticed that some of the thermostat variables that I was using with Venlink are no longer available. I'm looking specifically for the Outdoor Sensor and Filter Alert values which appear on the Nodelink Server device web page, but are not visible either on the node page or programmatically through ISY... Have I somehow misconfigured, or have these values been omitted..? The Outdoor Temp is of particular importance for us Dual Fuel Heat Pump guys as it allows us to customize staging times, etc. around the system's balance point. Thanks! --Bill
bipto Posted November 17, 2015 Author Posted November 17, 2015 Thanks io_guy! My migration from Venlink went very smoothly, and Nodelink has been rock-solid since first run. Thanks again for another great product!
paulbates Posted November 18, 2015 Posted November 18, 2015 Bill, You can run NodeLink and Venlinks side by side if that helps. Keep the variables and program lines that you need from venlink until they are included in NodeLink. Paul
bipto Posted November 18, 2015 Author Posted November 18, 2015 Bill, You can run NodeLink and Venlinks side by side if that helps. Keep the variables and program lines that you need from venlink until they are included in NodeLink. Paul Thanks Paul! Honestly I hadn't considered that, just jumped in to "noding" with both feet... Not really a deal-breaker as I can just import outdoor temp from the Climate Module, but I think there is some benefit to having the HVAC system itself and the ISY use the same value, and Venlink accommodated this so I figured I'd ask...
paulbates Posted November 18, 2015 Posted November 18, 2015 Thanks Paul! Honestly I hadn't considered that, just jumped in to "noding" with both feet... Not really a deal-breaker as I can just import outdoor temp from the Climate Module, but I think there is some benefit to having the HVAC system itself and the ISY use the same value, and Venlink accommodated this so I figured I'd ask... Bill I used them side by side when the runtime node was being created. I'm watching runtime to validate insulation work done earlier this year. I've since gone nodelink only too. I get that accuracy matters and using one source of data. I like the climate module for forecast data, but looking at setting up local temp, humid, pressure and light to improve HA locally. Paul
bipto Posted November 22, 2015 Author Posted November 22, 2015 Verified that these values are visible and available programatically in v.0.21 - all looks good! Sent some well-deserved PayPal love your way... Thanks again! --Bill
paulbates Posted November 23, 2015 Posted November 23, 2015 ... Sent some well-deserved PayPal love your way... Thanks again! --Bill I sent some as well. Thanks io_guy, your software makes a big difference here! Paul
larryllix Posted January 28, 2016 Posted January 28, 2016 Hate to resurrect this thread but I have only a blank in the ISY device page for my T7900. I also see no node for the external sensor temperature in the admin console for NodeLink v3.1 Do I have this correct, if I add an external sensor to my T7900, the temperature data will show up in NodeLink and on my ISY for logical decisions and triggering of programs? Have I have interpreted this thread incorrectly?
io_guy Posted January 30, 2016 Posted January 30, 2016 This thread had to do with NodeLink not having all the same features as VenLink, which is not the case anymore. Yes, an external sensor would show up. Under the main Venstar node you should see a "Sensor" variable.
larryllix Posted January 30, 2016 Posted January 30, 2016 This thread had to do with NodeLink not having all the same features as VenLink, which is not the case anymore. Yes, an external sensor would show up. Under the main Venstar node you should see a "Sensor" variable. Thanks. Any idea of the resistance value to simulate a sensor?
larryllix Posted January 31, 2016 Posted January 31, 2016 Google 10k sensor Thanks io_guy! Hooked up a rheostat to the sensor input and NodeLink suddenly appears with the node and a value for it. One snag though. NodeLink does not update the ISY Node on changes to the outdoor sensor value. It only triggers an update to ISY when another parameter is changed. After waiting 5 to 10 minutes, each test, I found if I changed a setpoint NodeLink updates that parameter as well as the outdoor sensor parameter in ISY. BTW: I found +20 degrees C took about 12k25 on the resistor but my DVM has begun to not reset properly now so that may not be accurate. 15kOhm displayed +12.0 C on the T7900.
io_guy Posted January 31, 2016 Posted January 31, 2016 I'm not seeing how that is possible since the indoor temp/humidity values are pulled from the same http get routine. I'll add extra debug logging to the next release.
larryllix Posted January 31, 2016 Posted January 31, 2016 I'm not seeing how that is possible since the indoor temp/humidity values are pulled from the same http get routine. I'll add extra debug logging to the next release. Thanks. NodeLink gets the parameter from the T7900 OK, after it updates on the stat. I can see it on the NodeLink monitor webpage. The sensor value update isn't pushed into the ISY Rest variable until another value changes. Then both update simultaneously. I am not sure of how the algorithm, that stuffs the ISY Rest parameters, works but it seems like the Sensor input value change doesn't trigger it.
io_guy Posted January 31, 2016 Posted January 31, 2016 I'm having a tough time reproducing that. All values are in the same loop. They are supposed to be sent as soon as they change. For you to see it change in NodeLink but not in REST is odd. Try enabling the main verbose log (main page, not device) to capture the REST sends to the ISY.
larryllix Posted January 31, 2016 Posted January 31, 2016 I'm having a tough time reproducing that. All values are in the same loop. They are supposed to be sent as soon as they change. For you to see it change in NodeLink but not in REST is odd. Try enabling the main verbose log (main page, not device) to capture the REST sends to the ISY. I'll have to hook up my simulator again today and test more thoroughly as you suggest. From the charts I have compared with the Venstar unit manual it appears the ColourTouch requires a NTC 10K @ 25C, Beta = 3435K sensor From my calculations off the sensor manual it should be closer to aprox. Beta = 3300 Anybody have a good place to get an outdoor sensor more locally sourced? The Venstar unit looks like an electrical box mount and maybe not too weatherproof. The stainless steel probe types on eBay look good and cheap but the China sourced waterproof probes always take so long to ship across the big pond.
larryllix Posted January 31, 2016 Posted January 31, 2016 I use a Honeywell C7089U1006The curve seems to match very well to the Venstar unit. Do you have a local source or remember where you got it ?
Recommended Posts
Archived
This topic is now archived and is closed to further replies.