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I would like to replace my older TIU - with a new one. The older one is set to TIU#3, and my SuperStreets are controlled by another TIU#2. Thus, the new one will be TIU#1 (my older TIU#1 bit the dust some time ago). Is there anything I need to do special-wise? Can I just swap out TIU#3 with the new one, or do I need to set it to TIU#1 (or are new TIU's set to #1)?

Thanks.

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Are you sure you're not resetting the remote?  The engines and their numbers are stored in the individual remotes.  I use my remote on my workbench TIU to work on engines, when I put them on the layout, if I use the same remote, they're right there and ready to go.  If I pick up one of the other layout remotes, I have to add the engines again.  I've swapped out the layout TIU several times, never lost any engines from the remotes.

If you are replacing TIU #3, then your new TIU should be set to TIU#3 before you do anything else. (Do it off the layout and with the other TIUs off.) Then swap your new TUI for the old TIU#3. Everything should pick up right where you left off, as the remote stores the engine assignments, not the TIU. The problem is the remote also associates an engine with a specific TIU address. When you replaced your #3 with a #1, that association was broken. So any engine previously entered that was associated with TIU #3 needs to be deleted and reentered. It will now be associated with TIU#1. BTDT.

Chris

LVHR

@lehighline posted:

If you are replacing TIU #3, then your new TIU should be set to TIU#3 before you do anything else. (Do it off the layout and with the other TIUs off.) Then swap your new TUI for the old TIU#3. Everything should pick up right where you left off, as the remote stores the engine assignments, not the TIU. The problem is the remote also associates an engine with a specific TIU address. When you replaced your #3 with a #1, that association was broken. So any engine previously entered that was associated with TIU #3 needs to be deleted and reentered. It will now be associated with TIU#1. BTDT.

Chris

LVHR

Perfectly stated! The only thing I'll add is in order to properly replace/swap a TIU like this is the need for second or spare DCS remote (this can also be done with a WIU & the DCS App). When doing this on that spare remote, any associations with engines that were found on TIU1 will be lost when you change TIU1 to TIU3, but only on the second / spare remote.

I learned this the hard way when we were dealing with multiple TUIs and multiple remotes on our modular layout. That's why the engine add track (off the layout) and the layout TIU have the same TIU address. The other requirements were 1) you had connect your remote to the Add engine TIU with a tether, and 2) a pad was kept with the Add engine TIU to keep track of what engine addresses were used. If you added an engine that had an address on the list, you had to change it to an unused prior to placing it on the layout. Then the associations work and you do not have more than one engine with the same address at the same time.



Chris

LVHR

Given that the engines are stored in the remotes, it's pretty "iffy" when you start swapping stuff anyway.  For DCS, I routinely reset the remotes so I don't have overlapping and duplicate engine numbers.  I'm sure there's a "logical" method to keep them all straight, but it's not logical to me.

In addition, having 40-50 engines in the remote gets a bit confusing to find the one you want to run.  I prefer to have the ones that are in use at the time in the remote and the others on the shelf just on the shelf.   It's not difficult to add a new engine, so I just add them when I want to run them.

Actually, no. First thing to do is backup your remote to a computer. The DCS loader has that feature, IIRC. Then tether your remote to the new TIU. Delete the existing TIU3 from the remote, which also deletes all the associations that go with it. Renumber the new TIU to address 3. You now have a blank TIU 3. Go back to the DCS loader and download you saved TUI 3 data to it.  You are back in business.

Chris

LVHR

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