This question has come up more than once on the Digitrax groups.io forum. "How do I convert the speed percentages of my Digitrax throttle to the 28 speed steps"? Soundtraxx has this defined in their reference manuals but it is a little hard to find. It is on page 60 of the current reference manual (software release 1.2).
Figure 1 Speed steps and throttle speed percentages
Column 1 lists the number of each CV in the custom speed table. Column 2 lists the speed steps, Column 3 is the throttle percentage representing that speed step and Column 4 is the default value of the corresponding CV. For example, speed step 5 is 18 on the throttle. That is controlled by CV 71 which has a default value of 45.
JMRI's Panel Pro throttle has speed steps built in. Start Panel Pro, select Tools. Select Throttles then click New Throttle. Right click on the Control Panel, click Properties then click on Display speed steps.
Additional Information
Entering values from 0 to 255 into CVs 67-94 will set each point of the 28-point custom speed table from 0% to 100% of the maximum throttle setting. The 28-point speed table is linear by default as defined in the above table.
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