Which cv's are used to switch foward and reverse?
If you mean changing the normal direction of travel, it is CV29.
Jack W.
Add 1 to the current value in CV29.
Mark.
¡ uʍop ǝpısdn sı ǝɹnʇɐuƃıs ʎɯ 'dlǝɥ
CV29 is a multi-function CV. Here is a great little calculator.
http://www.2mm.org.uk/articles/cv29%20calculator.htm
Say you want to operate forward with 28/128 speed steps and use a long address. The value of CV29 would be 34. If, instead, you wanted to operate in reverse, the value of CV29 would be 35.
Rich
Alton Junction
Mike, are you there?
jalajoie If you mean changing the normal direction of travel, it is CV29.
Wouldn't switching forward with reverse be changing the normal direction of travel?
NP 2626 "Northern Pacific, really terrific"
Northern Pacific Railway Historical Association: http://www.nprha.org/
richhotrain Mike, are you there? Rich
I don't think that he replies to posts. Look at his other posts.
Joe
Mark R. Add 1 to the current value in CV29.
That's true if that bit in CV29 is already zero, as it would be if no one ever changed it. But, for example, if you bought this engine used and someone had already set the bit, then adding 1 to the value of CV29 would change other unrelated bits, and might make the engine behave badly.
So:
To change the normal direction of travel, examine CV29. If it's an even number, add 1. If it's an odd number, subtract 1.
It takes an iron man to play with a toy iron horse.
JoeinPA richhotrain Mike, are you there? Rich I don't think that he replies to posts. Look at his other posts. Joe
.