Example 1:A thermostat with bus and node address of b:01 is wired a model 400 controller boiler bus and in turn is wired to the 482 on port 0. This address is 0101.

If a device is not connected to a system control it is said to be in a stand-alone network. These networks will report a bus of zero (B = 0) and will display NN on the device.

Example 2:A thermostat with bus and node address of b:24 is wired a model 423 controller boiler bus and in turn is wired to the 482 on port 0. This address is 0424.

Address is not correct.  Also need to flip the reporting enable dip-switch on the gateway and use the test button once to make sure you’ve got communications.  Double check the cable pin out as I’ve also gotten feedback before even with the cable terminated incorrectly.

Pages 8-11 will help you sort out the proper addressing.  I think they need to be 4-digits from the Crestron help file , not attached.

Ok, I think I found out another issue.  The technician on site just told me he doesn't think they used a Tekmar Net4.  He said it looks like they used a "Tekmar TN4 Gateway 482".  I'm guessing the module won't work with that?

Hoping one of you familiar with Tekmar controls can help me out. I have a system with 9 Tekmar tstats. One is connected directly to the 402 home controller while the other 8 are connected to the 313 wiring center. The one connected directly is working fine but the other 8 I can't control. The Tekmar installer gave me addresses for them of b20, b21, b22 etc. The Crestron module requires a 4 digit number. The installer told me to replace the "b" with 02 but that doesn't work. Anybody have any ideas???

Example 3:A group of thermostats are wired together to create a stand-alone network. A thermostat with node address 15 is wired to the 482 on port 0. This address is 0015.

TN4 = Tekmar Net4, 4-wire thermostats.  That gateway also can use TN2 style 2-wire thermostats. And will work. As long as the thermostats aren’t over 10 years old you should be good.

Ok, so I'm FINALLY dealing with the Tekmar tstats in the system I programmed and I have a feeling the addresses I'm using aren't correct.  The contractor sent me addresses formatted like this "2:01" so I entered that as "201d".  I'm seeing responses from the Tekmar system, but I'm not getting any feedback, does anyone know what the issue could be?  I've also tried 0201d and am having the same issue.

NN = Node, The node of the (thermostat) device on its bus. The address that is visible on a device will be B:NN when connected to system control. When not connected to system control (stand-alone network), the address is shown as NN. The device number is a two digit number that ranges from 01 to 24 and can be determined from the device address shown on the display of the device.

P = Port, The physical port that the device is attached to on the gateway. The 482 has five physical ports, zero through four.482 tN4 Bus 0 (terminals 3 & 4) = 0482 tN4 Bus 1 (terminals 5 & 6) = 1482 tN4 Bus 2 (terminals 7 & 8) = 2482 tN4 Bus 3 (terminals 9 & 10) = 3482 tN4 Bus 4 (terminals 11 & 12) = 4

B = Bus, The water temperature bus that the device belongs to, this is defined by the connection to the system control. The boiler temperature bus number varies depending on the system control model that the thermostat is connected to.274 tN4 Boiler Bus = 1275 tN4 Boiler Bus = 1400 tN4 Boiler Bus = 1401 tN4 Boiler Bus = 1402 tN4 Mix Bus = 1402 tN4 Boiler Bus = 2420 tN4 Boiler Bus = 1421 tN4 Mix Bus = 1422 tN4 Mix1 Bus = 1422 tN4 Boiler or Mix2 Bus = 2423 tN4 Bus1 = 1423 tN4 Bus2 = 2423 tN4 Bus3 = 3423 tN4 Boiler Bus = 4