LGB MFX Decoder CV Help?

palmerston

palmerston

trains
24 Oct 2009
498
10
Netherlands, near Aachen ;-)
#41
Someone created the template for their own use, and (I think) it got offered on here??
It is not a 'commercially' created / distributed template, to my knowledge..
Indeed, the post is blank, deleted and the pages arend on FB anymore.
 
John S

John S

Registered
5 Nov 2017
377
228
Devon
#42
With reference to LGB Models fitted with a LGB 55028 mfx/DC/DCC decoder, could I impose on individuals to provide the Model Numbers of the Loco's owned, so that I may locate the relevant manuals and check the CV's for each model, this will help with producing version(s) of the Decoder Template for use with the latest Massoth Service Tool program.

Screenshots below of the latest work in progress working copy of said template.

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palmerston

palmerston

trains
24 Oct 2009
498
10
Netherlands, near Aachen ;-)
#43
LGB 20480 Saxon VIk (Manual not online for download)
LGB 23591 KöF 6001
 
John S

John S

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Devon
#44
This is how the template looks for the LGB23591, copy sent to your email address.

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John S

John S

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#45
Template for the 20480 sent via email.

Noticed a slight discrepancy with CV60, manual says by default it's 46, if you add up the various combinations, setting it to 48 makes more sense, perhaps you could do a READ on CV60?.
 
idlemarvel

idlemarvel

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13 Jul 2015
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Ascot
#46
On my 20480 the value is 46. CV60 is to do with station announcements? This is a bit mode value.
I think 46 means there are 14 stations (first 4 bits) and changing the loco direction changes the sequence (bit 5 counting from 0). As far as I can tell this CV makes no difference as there don't seem to be any station names recorded on the supplied chip. Maybe there is a facility to add some.
 
John S

John S

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#47
Working on the template for the Function Mapping, balance between what to include and easy to read, working with what is available from within the Massoth Service Tool program itself.

From the printed table, easiest way to read it, is like a crossword Down & Across,
Group A LV to AUX6,
Group B ABV to Sound 4,
Group C Sound 5 to Sound 12,
Group D Sound 13 to Sound 16.

F1 is in this case AUX1, CV262 & CV362, on in both directions.
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LGB333

LGB333

Member
15 Feb 2015
44
9
McLean Virginia
#48
You can program them with your Massoth equipment..
BUT,
It is not a Massoth decoder, so things are not where 'we' expect, and certain 'nice to have' features on the Massoth, do not work because of this.
Case in point being changing the address:
The 'change address' feature on the Massoth system, changes more than just the address 'value', this is why it fails to a MFX decoder.. As long as you are aware of this, and change the individual CV's, then no problem.

I think it is more a case of it being 'different', having a lot more features (though Massoth are catching up, a little), so things are not where we expect them to be.

We are all so familiar with the way we have 'always' done it, change is hard. :think:
++++++++++++++++++++++++++++++
I've read on the Marklin Website that their Mfx decoder has three technologies embedded: Mfx; DCC; and Analog. Mfx is not NMRA DCC protocol compliant, and that's why Marklin recommends to "turn off" the Analog settings to prevent potential conflicts. Conversely, I've also read someplace, don't remember where, that we USA DCC users should turn off the mfx protocols. I'm getting my repaired LGB 27443 50th Anniversary RhB Railway GE 4/4 Electric Locomotive back from the Germany store I bought it........the front Pantagram didn't work and they sent it to Marklin for repair. Does anyone know what CVs to set to turn off the mfx elements of the decoder so only DCC activates?
 
idlemarvel

idlemarvel

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13 Jul 2015
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Ascot
#49
It's CV 50 ("alternative formats"). Setting it to zero will make it "pure DCC". If you want analog DC as well as an alternative set it to value 2.
 
Zerogee

Zerogee

Clencher's Bogleman
25 Oct 2009
16,223
1,743
North Essex
#50
++++++++++++++++++++++++++++++
I've read on the Marklin Website that their Mfx decoder has three technologies embedded: Mfx; DCC; and Analog. Mfx is not NMRA DCC protocol compliant, and that's why Marklin recommends to "turn off" the Analog settings to prevent potential conflicts. Conversely, I've also read someplace, don't remember where, that we USA DCC users should turn off the mfx protocols. I'm getting my repaired LGB 27443 50th Anniversary RhB Railway GE 4/4 Electric Locomotive back from the Germany store I bought it........the front Pantagram didn't work and they sent it to Marklin for repair. Does anyone know what CVs to set to turn off the mfx elements of the decoder so only DCC activates?
The MFX decoders have a "heirarchy" of protocols, they first look for an MFX signal, if they don't find one then they look for a DCC signal, if they don't find that either then they will default to analogue. Deactivating one or more of those options via CV50, as Dave says above, will stop the decoder looking for that protocol and thus reduce the risk of any hassles or confusion. If you're not going to want to use it with an MFX central station, then yes, it is a good idea to turn off the MFX option so that the decoder looks for regular DCC in the first instance. You can turn off analogue too if you wish, and if you're not planning to run the loco on an analogue layout.

It has been discovered, mainly through trial and error plus a lot of discussions on this and other forums, that the "trick" to changing the loco address on DCC with a new MFX decoder is to first run the loco briefly on your DCC system using the factory default address 3, this will "tell" the decoder to expect DCC commands rather than MFX ones; THEN you can change the loco address, which is best done simply by rewriting CV1 to the desired new address number - using the preprogrammed "change loco address" function on (for example) a Massoth Dimax system will most likely give you some problems with an MFX decoder, because that method also rewrites some other CVs as well as CV1.

I was rather wary of the new MFX decoders at first, having heard various tales of problems people had with adjusting them, but after setting up my Saxon VIk 0-10-0 very successfully (I run Massoth DCC) I can attest that they are not as scary as some people say!

Jon.
 
John S

John S

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#51
Another piece of the Function Mapping puzzle completed, only one more page to go....
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John S

John S

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#52
Had some spare time to kill, preparations and operation sequences completed for the two layouts for the Christmas Fayre, sitting and idly watching the third layout that is part of a Shop Window display going through it's various automatic sequences, had a play with the Switch Outputs of the LGB 55028 Decoder.

The Special Effects are primarily designed to work with LED's, although LGB Lamps/Bulbs also work just as well.

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John S

John S

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#53
Master Decoder Template for the LGB 55028 Decoder now completed, tested, checked, proofread (I hope, gone number blind!) 6 pages and 260 CV's later......now just simple matter to clone it to the relevant LGB Model.

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Zerogee

Zerogee

Clencher's Bogleman
25 Oct 2009
16,223
1,743
North Essex
#54
This is "all Geek to me", but looks like a great job of work, John! :D

Jon.
 
John S

John S

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#55
The "cloned" Decoder Template for an LGB 23591 has been emailed, await comments!
 
John S

John S

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#56
Another "cloned copy" this time for the LGB 20480 has be sent via email, await comments!
 
John S

John S

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#57
Another "cloned copy" this one is for the LGB 21985 model.