I purchased three new WTIU’s with the idea that I would put them in super-TIU mode, replacing three older TIU’s. As noted above, Page 5 of the online manual provides instructions on how to do this, but after several tries without success I tried to figure out what steps might be missing. (Having a long history with the DCS system, like many of us I have realized that MTH sometimes leaves out critical steps in their initial instructions). After a bit of trial and error, I finally got all three of the WTIU’s in super mode. The step that seems to be missing on page 5 is that each of the WTIU’s must first be put into super mode (just like with the older handheld remote and older TIU’s where the process was much simpler). To do this, before going through the steps as described on page 5, I turned on each of the WTIU’s by itself in MTH mode (not home) and linked my ipad to the Wi-Fi signal produced by that WTIU. After opening the DCS APP and getting the “run my trains screen”, tap the “more” tab at the bottom of the main screen. This takes you to a new page with “advanced features” at the top. Tapping that takes you to another page with a “systems setting” tab. Tap that one and you get four more choices including “TIU settings.” When you open that one, you get a screen with several familiar TIU options, including a button to activate “super TIU” on that particular TIU. Hit that button then back out of all of the screens. Turn off power to the WTIU that you just put into super mode and repeat the process for all of the other WTIU’s that you want to put into super mode. (Remember you have to keep changing the WIFI network that your smart device is connected to so that your device is communicating only with the WTIU that you want to put into super mode). After that, follow the instructions on page 5, including putting the “non-master” WTIU’s into home mode. Once I did all this, I could power up all of the tracks on which I had DCS engines, and issue the "read" command (the circular arrow at the top left of the main screen. With that all of the DCS engines that were powered were moved to the "active" list and could be run successfully. Sorry for the length of this post.
PRK