Is there a definitive CV list out there?

Nodrog1826

Nodrog1826

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Having a minor local difficulty with a new chip installation, so have read all the CV's up to 255 to compare the list that came with the chip.

Now the some of the CV's I have recorded are not listed on the list/instructions, most are "0" but others have a value.

Just curious to know what they are, and what they do, and more to the point how high do CV numbers go to.
 
What make of chip, Gordon? Massoth always seem to have a pretty comprehensive list of CVs in their instructions....

Jon.
 
Its a Massoth LS chip, replacement for one I blew up!!

Mark supplied it, with a CV list as well as the instructions.

But there are common gaps in the listings, all of which I have read and some have a value.

CVs 105/6 117 and 119, 213/6 then 240's, 253/4 then the final on I can read is 256.
 
Gordon,

The CVs that are of use will be listed in the manual. Just because the programmer you are using reads a CV does not mean it is used by the decoder.

NMRA specify a list of Mandatory CVs and suggest usage for others in order to be compliant, but lets face it, manufacturers will use the "optional" ones as they feel fit.

If you are confused with the Massoth decoders, you should try some others that allow for 1000s of CV accessible via paging them into the allowable CV address range.
 
It was just curiosity Mark.

To see what if anything was listed under the "Missing" CVs, after checking/confirming against the list you supplied me with.

Still have my niggle to sort out, not sure if adding the Coupler to A3 plus and setting it up to F16 has done something,
but I now have piston sound etc at notch 2 but no wheel movement until notch 4/5.

Not sure if its that or that I may have damaged the Stainz's motor when I blew the original chip, but it's strange listening to the loco chuffing away on notch 2 whilst it sits still on the rollers.
 
have you tried increasing CV2 as that controls the motor voltage at speed step 1?
 
Ok Mark, done that now set CV2 to 25 and it looks to be ok.

Had tried setting it low, thinking lower the number the least resistance to the motor if you get my drift, but its a fraction of the voltage, so 25 looks to be around 2.5 ish volts, if my revised way to calculate it is correct.

See telt you all I is thick.

BTW.

Have managed to read the damaged decoder as well, there is still life in it, just wont drive, wonder if it can be fixed and re sounded?

20150603_081949 (900 x 675).jpg




 
Will Lucas wiring loom smoke work?? - You could seal the chip with epoxy, once you had put it in!! ??? :o ::) ::)
;) :D ;D ;D ;D
 
"See telt you all I is thick."

Nah - if I took up the dark side, I'd have to put a sign on the shed door. "Frying Tonight" would be appropriate for me I think.
 
I was working on it in the kitchen, on top of the cooker and next to the microwave when it blew, so that sign would be more applicable to the kitchen. ;D
 
If you had been burning code for control of a nuclear power station...

Would you have been cooking fission chips?? ;) :D ;D ;D 8)

Sorry! Parts found at Client site so I will be on my way!!
 
That looks like it's one of the output FET chips, I blew a Lenz Gold Maxi the same way a few years ago. Managed to unsolder and replace the chip, but the decoder was never quite right even though it worked.
 
ntpntpntp said:
That looks like it's one of the output FET chips, I blew a Lenz Gold Maxi the same way a few years ago. Managed to unsolder and replace the chip, but the decoder was never quite right even though it worked.
Click to expand...
I reckon you can say that about most of the Massoth repaired items.. They work, but are 'not quite right'.. ??? ;)
 
........anyhow the chip has entered the first phase of its repair journey, time scale for when/if it can be fixed is not that important to me.

But....

Getting back to the plot as it were, the definitive list..........there must be a one out there, something I can save/copy-paste etc.
 
Are you talking about "definitive" for all decoders, just for Massoth decoders, or just for the Massoth LS? As has been mentioned, the NMRA DCC standards will give you the "standard" CVs that all decoders are expected to support. Other than those, each decoder manufacturer can do pretty much what they like and so there is no "definitive" list for all CVs. Your best bet is the manual for the decoder.

http://www.nmra.org/sites/default/files/standards/sandrp/pdf/s-9.2.2_decoder_cvs_2012.07.pdf
 
AND, it will depend on which revision of software is in the decoder.. ::) :(

sorry, they don't make the 'dark arts' easy! ;)
 
A list like one Nick will do just fine for me.
 
and now Marklin are doing their own thing. CVs don't control what you expect. i.e CV 50 is lighting voltage - but not on a Marklin MFX chip.
 
stockers said:
and now Marklin are doing their own thing. CVs don't control what you expect. i.e CV 50 is lighting voltage - but not on a Marklin MFX chip.
Click to expand...

CV 50 is the light output dimming CV for LGB and Massoth decoders..
Different manufacturers use different CV for this..
Zimo for example use CV 60.

Marklin is 'different' because it is a different manufacturer.. Just to keep us on our toes, so to speak.. :(;)
 
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