Rod

I am attempting to use a 2441ZTH Tstat to monitor outdoor temperature. I soldered the external probe in place of the internal temperature sensor as suggested in the forum - which works well. However, when the temperature falls below zero, ISY displays a temperature of 127.5 degrees. It appears the 2441 sends ISY a signed byte with each bit representing 0.5 degrees, so -0.5 is represented as FF. ISY ignores the sign and displays 127.5 (FF/2). A temperature of -1.0 displays as 127.0, -2.0 as 126.0, and so on. If I use the Celsius scale, the negative values are absolutely distinguishable from positive temperatures. However, ISY only allows the temperature to be compared against values of 1-122 degrees. That means I cannot distinguish temperatures between +1C and -6C - a critical range. That deadzone is much colder in Fahrenheit but is still falls in a common temperature range for our climate. Fahrenheit has a second problem of negative temperatures overlapping valid warm temperatures. A workaround is to use the Climate Module for outdoor temperature. Unfortunately, our nearest weather station is too far away to get an accurate reading. Has anyone else encountered this problem and found a workaround?

I use an IOLinc to ring my doorbell when the gate opens. If you want the sound local to the garage, you can get dual tone doorbell kits for under $20 including the transformer.

I have passed my alarm clock through a Synchrolinc and am using that to slowly ramp up the bedroom lights. So far, I am having mixed results. The alarm clock draws about 6.5-7.1W in standby and just about 8W with the radio on. This small difference from the radio is difficult to detect. The ISY allows the Syncholinc threshold and hysteresis parameters to be set in 1W increments and I am having difficulty finding a setting that works. At the 8W threshold the ‘off’ state is reliable but the ‘on’ state toggles on and off. At 7W the ‘on’ is reliable but the off state occasionally produces false ‘on’s – turning the lights on in the middle of the night. No amount of hysteresis seems to cure either problem. I haven’t found any documentation on how the hysteresis and hold-off affect the detection algorithm. Trial and error seems to indicate that the hysteresis is all below the threshold and that the delay is just a time until next sample – not an averaging period. If anyone has insight into these parameters, I would appreciate help with them. The limited documentation on the device indicates that these parameters can be set in 0.5W increments. If that resolution was available it would probably solve my problem. Conclusion: before you choose the synchrolinc solution, I suggest you meter the clock / radio load to see if the power difference can be reliably detected.

Hi eximer168 I also had the same problem with the Synchrolinc. Michel et al have diagnosed the problem and it will be resolved in the next release. You can find the details on the Questions and Answers forum: http://forum.universal-devices.com/view ... sc&start=0 Cheers, Rod.

Hi Lee, Would you mind explaining what i2 and i1 are? I noticed i2 mentioned in the release notes but I must have missed the post that explains it. From the context it sounds like a protocol/mapping extension. Michel/Lee/Brian, thanks so much for solving the problem. Rod.

Hi Lee, I upgraded to 3.1.2 but the results are the same. I tried everything I can think of to get it to link, during calibration, after calibration, I even forced the device into linking mode with the button. Nothing worked. One more bit of info. If I link in full manual mode (selecting synchrolinc from the drop down), I get the error dialog below: Node not added – failed removing links (18 F8 49 1) [-200000/-9] __________________ Failed writing the highwater mark [-200000/-1] This method does not add the device. If I leave the device type as auto discover then the device is added but not linked. Thanks, Rod.

I forgot to mention - I am running v3.1.1

I just received my new Synchrolinc V3.0. Thanks to the ISY's ability to fine tune it's calibration, I was able to detect when my clock radio turns on to wake us up (which is impressive since the radio only increases the draw from 7 to 8 watts). This fulfils a life long dream to slowly turn on the bedroom lights when it is time to get up - beautiful. Only one problem, I cannot get the ISY to write the Synchrolinc device table. The ISY recognizes the Synchrolinc, sets the calibration, and can query the device but it will not receive notification messages from the device. I must query the Synchrolinc every 10 seconds to get it to work - a weak band-aid at best. I tried manually adding the device by selecting Synchrolinc for device type and using auto discover. I removed all links and did a hard reset on the device. Every time I get an error dialog that says: Failed writing device link (Radio) [-200000 / -51] Or a different dialog that says: Cannot Communicate With Radio (18 F8 49 1). Please Check Connections. I am confident that communications are good. As mentioned earlier, all other communication with the device works. I also moved it to different outlets just to be sure. Here is the event log I see when I select "Write Updates to Device" from the context menu: Thu 04/07/2011 09:37:19 PM : [18 F8 49 1 ] Using engine version i2 for 'Radio' Thu 04/07/2011 09:37:19 PM : [18 F8 49 1 ] Link 0 : 0FF8 [E201129E84FF1F01] Writing [E201129E84FF1F01] Thu 04/07/2011 09:37:19 PM : [iNST-ACK ] 02 62 18.F8.49 1F 2F 00 00 00 0F FF 01 00 00 00 00 00 00 00 00 00 06 (00) Thu 04/07/2011 09:37:20 PM : [iNST-SRX ] 02 50 18.F8.49 12.9E.84 2B 2F 00 (00) Thu 04/07/2011 09:37:20 PM : [standard-Direct Ack][18.F8.49-->ISY/PLM Group=0] Max Hops=3, Hops Left=2 Thu 04/07/2011 09:37:20 PM : [iNST-ERX ] 02 51 18 F8 49 12 9E 84 11 2F 00 01 01 00 FF 01 00 00 00 00 00 00 00 00 00 Thu 04/07/2011 09:37:20 PM : [Extended-Direct][18.F8.49-->ISY/PLM Group=0] Max Hops=1, Hops Left=0 Thu 04/07/2011 09:37:20 PM : [Ext. Msg. Handler] Duplicate response: ignored Thu 04/07/2011 09:37:29 PM : [iNST-ACK ] 02 62 18.F8.49 1F 2F 00 00 00 0F FF 01 00 00 00 00 00 00 00 00 00 06 (00) Thu 04/07/2011 09:37:29 PM : [iNST-SRX ] 02 50 18.F8.49 12.9E.84 2B 2F 00 (00) Thu 04/07/2011 09:37:29 PM : [standard-Direct Ack][18.F8.49-->ISY/PLM Group=0] Max Hops=3, Hops Left=2 Thu 04/07/2011 09:37:30 PM : [iNST-ERX ] 02 51 18 F8 49 12 9E 84 11 2F 00 01 01 00 FF 01 00 00 00 00 00 00 00 00 00 Thu 04/07/2011 09:37:30 PM : [Extended-Direct][18.F8.49-->ISY/PLM Group=0] Max Hops=1, Hops Left=0 Thu 04/07/2011 09:37:30 PM : [Ext. Msg. Handler] Duplicate response: ignored Thu 04/07/2011 09:37:39 PM : [iNST-ACK ] 02 62 18.F8.49 1F 2F 00 00 00 0F FF 01 00 00 00 00 00 00 00 00 00 06 (00) Thu 04/07/2011 09:37:39 PM : [iNST-SRX ] 02 50 18.F8.49 12.9E.84 2B 2F 00 (00) Thu 04/07/2011 09:37:39 PM : [standard-Direct Ack][18.F8.49-->ISY/PLM Group=0] Max Hops=3, Hops Left=2 Thu 04/07/2011 09:37:40 PM : [iNST-ERX ] 02 51 18 F8 49 12 9E 84 11 2F 00 01 01 00 FF 01 00 00 00 00 00 00 00 00 00 Thu 04/07/2011 09:37:40 PM : [Extended-Direct][18.F8.49-->ISY/PLM Group=0] Max Hops=1, Hops Left=0 Thu 04/07/2011 09:37:40 PM : [Ext. Msg. Handler] Duplicate response: ignored Thu 04/07/2011 09:37:44 PM : [18 F8 49 1 ] Link 0 : 0FF8 [E201129E84FF1F01] *Failed Writing [E201129E84FF1F01] Any suggestions on how I might get the device to link properly? Many thanks, Rod.

Hi Michel, I ran the test you suggested (clearing the cache) and the results were the same. Once again it started with two groups and adds a full group each time a variable is renamed. Cheers, Rod.

Upgrade went well and the variables in notifications are awesome. I have run into an odd problem. When selecting variables in programs, the pull down list shows the full list of variable names repeated a few times. I rebooted the ISY to see if that would help. After doing so, the 9 variables I had were repeated twice (total of 18 entries in selection list). I then renamed one of the variables and then got three sets for a total of 27 entries. The renamed variable is correct in the final group but the old name is shown in the first two groups. Each time I rename a variable, I get a new group added to the list. The work around is to select from the final group and all seems fine.

I am also interested in purchasing an EZIO6I. Has this problem been resolved or has it moved to a different thread?