Author Topic: Writing CV 17 and 18 ?  (Read 903 times)

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93cram

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Writing CV 17 and 18 ?
« on: November 21, 2010, 07:13:57 AM »
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Good day all,

Suppose I have set CV29 on a Digitraxx or TCS decoder to accept 4 digits adressing, how should I write CV 17 and 18 ?
For instance, if my choice of adress is 1234, should CV 17 be written 12 and CV 18 be written 34 ?
Or the opposite ?

Thx in advance for your help,

Marc

John

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Re: Writing CV 17 and 18 ?
« Reply #1 on: November 21, 2010, 07:33:20 AM »
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Try this handy calculator

http://www.mgbrr.org/tips.html

93cram

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Re: Writing CV 17 and 18 ?
« Reply #2 on: November 21, 2010, 08:00:31 AM »
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That's great, thanks a lot John !  8)  ;)

BTW, while reading some past thread around this issue, I noticed it was
recommended by some to modify CV 29 for 4 digits addressing only after writing CV 17 and 18.
Would you confirm this ?

Marc

John

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Re: Writing CV 17 and 18 ?
« Reply #3 on: November 21, 2010, 08:08:13 AM »
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I use JMRI almost exclusively for programming my decoders .. if that is an option, I would encourage it .. saves a lot of problems ..

mmyers

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Re: Writing CV 17 and 18 ?
« Reply #4 on: November 29, 2010, 09:44:55 PM »
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Program CV17 and 18 first. After that, turn the long address "on" by programming the CV29.

93cram

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Re: Writing CV 17 and 18 ?
« Reply #5 on: November 30, 2010, 01:28:14 PM »
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Thx mmyers !

Should I try to write the long adress with my throttle first, in case the command station could modify CV29 directly ? (I use MRC Advance 2)

mmyers

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Re: Writing CV 17 and 18 ?
« Reply #6 on: December 11, 2010, 10:36:01 AM »
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Should I try to write the long adress with my throttle first, in case the command station could modify CV29 directly ? (I use MRC Advance 2)

You could try it first with the throttle. It's quicker. I only write CV17, 18, and 29 directly if the normal programming method doesn't work. Most times it just works.

Martin Myers

93cram

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Re: Writing CV 17 and 18 ?
« Reply #7 on: December 11, 2010, 12:24:21 PM »
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Thx Martin ! ;)