@gunrunnerjohn posted:Fails here every time, I just did it again. Remember, this is with the R4LC programmed as a Legacy locomotive (AUX1/1 or AUX1/2). You can program the Legacy R4LC to replace a TMCC R2LC if you use AUX1/4 through AUX1/8, but then it acts just like an R2LC. Also, if you use a TMCC CAB1, or the CAB1L, you'll be still talking in TMCC mode, that apparently works. The object of the exercise is to replace the Legacy motor drive and still be able to use Legacy mode from the CAB2 & Legacy command system.
Test setup.
R4LC programmed as a Legacy Steam. (AUX1/1 after setting the TMCC ID).
Using the Legacy CAB2 with the engine type set to Legacy.
I tried with the ERR CCM (current generic version) and the TMCC back-EMF driver from Lionel. In all cases, I cracked the throttle and immediately went to full speed. Classic behavior as the CC-M doesn't see the serial data, and a runaway is the result.
I then tested with the Legacy back-EMF driver from Lionel, works just fine as the Legacy code recognizes the 9-bit serial data.
Again, this is a test of Legacy functionality.
I suspect you’re right. I was using a CAB-1L.
So I guess the answer is… “it sort of works.”
