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Hi,

I'm a new member, I've just had my interest in model railways re-kindled as I'm setting up a trainset for my 7 year-old. But this is turning out to be a bit more than just a trainset and I've been fascinated with this DCC thing and have read quite a lot here and elsewhere.

My question concerns the DCC decoder, and I understand that you can set the maximum speed (important to stop a 7 year old playing scaletrix with the locos). But I see that Hornby decoder in the loco and the hornby "select" controller don't mention this setting.

So my question is this - does the Hornby decoder have CV5 within it?

If it does have a CV5, can it be programmed externally (somehow)? and will the new CV5 setting be in effect with the Hornby "select" controller?

Are there any stand alone programming devices?

A lot of questions that assume the previous questions are true - but I'm just wondering whether I'm locked into the "select" way of doing things or whether I can break out in some way.

Fabben
 

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QUOTE (fabben @ 30 Nov 2007, 21:48) <{POST_SNAPBACK}>Hi,

I'm a new member, I've just had my interest in model railways re-kindled as I'm setting up a trainset for my 7 year-old. But this is turning out to be a bit more than just a trainset and I've been fascinated with this DCC thing and have read quite a lot here and elsewhere.

My question concerns the DCC decoder, and I understand that you can set the maximum speed (important to stop a 7 year old playing scaletrix with the locos). But I see that Hornby decoder in the loco and the hornby "select" controller don't mention this setting.

So my question is this - does the Hornby decoder have CV5 within it?

If it does have a CV5, can it be programmed externally (somehow)? and will the new CV5 setting be in effect with the Hornby "select" controller?

Are there any stand alone programming devices?

A lot of questions that assume the previous questions are true - but I'm just wondering whether I'm locked into the "select" way of doing things or whether I can break out in some way.

Fabben

***Hello Fabben. Nice to see you doing this with the family - I have many clients who involve their sons and daughters in the hobby and its a great thing to do together!

Yes, you can break out no problem.

If you'd like a very clever stand alone programmer that will also double as a control system at a very comfortable cost then SPROG may be of interest. This is an excellent little device that will connect to your computer and let you read and programme decoders to your hearts content - it wil lalso do far more than that and is really worth investigating as an "essential tool" for your future DCC endeavours if you will stay with the Select.

Andrew, the designer, is on this forum under the name "sprogman". He'll be happy to help you. If you look him up (click on his name and it'll take you to his profile page, and you can then PM him)

The other thing to do is avoid Hornbys decoders I am afraid - they cannot be read back properly and are limited in functions. My favourite decoder are by TCS but Select is not properly DCC compatible so it can't work with them - but its important that you change brand early on to avoid frustration so I strongly recommend you look at perhaps the Bachmann chips - or Lenz, both of which will work with the Select.

Kind regards

Richard
 

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Discussion Starter · #4 ·
Thanks for the replies,

So what your saying Doug is that some CV settings on the Hornby decoders are not available?
I was thinking that they might just be hidden from the Hornby controllers and thus programmable outside the Hornby universe, but maybe not.
 

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QUOTE (fabben @ 1 Dec 2007, 22:58) <{POST_SNAPBACK}>Thanks for the replies,

So what your saying Doug is that some CV settings on the Hornby decoders are not available?
I was thinking that they might just be hidden from the Hornby controllers and thus programmable outside the Hornby universe, but maybe not.

***No, they are simply not there - as stated by both Doug and I.

This is an error of judgement by Hornby, as basic control CV's are needed to refine control in may circumstances. Not having a CV active saves precisely nothing as the cost of components on the chip are identical to one which has all the facilities.

Other things like readback were actually supposed to be there but analysing the decoders software shows that coding errors prevent them from working properly, just as similar errors make Hornby Digital (as in the Select) NOT actually truly DCC compatible as it does not meet the basic NMRA standards and cannot work properly with several very popular brands of decoders

Regards

Richard
DCCconcepts
 
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