FYI:

Available currently via the mDT
originally 3.2 (3.2.0.1) was only available with the newer gauge 1 decoder
now for mLD/3 and mSD/3 (specific decoders to follow)


anticipate via CS2 shortly.

Version: 3.2.0.3 (December 06, 2018)
Improvement: Constant stopping function has been improved
Improvement: The steam stroke can now also be routed to the mapping, for example to control a smoke rate
Bugfix: The susceptibility to interference with bouncing sensors has been reduced
Bugfix: The control of the SUSI voltage buffer has been revised
Bugfix: An error in the calculation of the SUSI cycle has been fixed
Bugfix: Sound CVs are only displayed when the Märklin sound module is connected
Bugfix: Changes in the state of the flip-flops now correctly trigger a rule processing
Bugfix: A SUSI buffer is now switched off reliably during DCC programming
Bugfix: Fixed a bug where the communication between mDecoderTool3 and the decoder tester was disturbed

Version: 3.2.0.2 (September 14, 2018)
Improvement: During programming in DCC fewer disturbances occur
Improvement: Overcurrent detection has been improved
Improvement: The speed of the SUSI bus has been increased
Improvement: The driving characteristics in the analogue AC mode have been improved
Bugfix: Fixed a bug where some locos drove off during the mfx login process
Bugfix: An error in the flip-flops has been fixed
Bugfix: Several small errors in the SUSI voltage buffering operation have been fixed
Bugfix: Detecting the direction of travel in analogue DC mode has been improved
Bugfix: Improvement of communication with the new Märklin decoder tester
Bugfix: An error that still had some old data after reprogramming has been fixed


Comment: 3.2.0.1 had been available earlier but only for G1/LGB decoders. These now have been extended to be applicable for mLD/3 and mSD/3


Version: 3.2.0.1 (June 29, 2018)
Feature: Track 1 and track G decoder introduced
Improvement: New Output Mode Exact Time Switching
Improvement: New output mode minimum time switching
Improvement: New output mode Exact time on and off with sensor
Improvement: New output mode Permanently on
Improvement: New output mode buffer control
Improvement: New output mode for new Telex coupling (FGL coupling)
Improvement: New feature "Sound Idle Hold" allows the clutch winder even with the driving sound on
Improvement: Mapping expanded by eight AND gates
Improvement: Mapping expanded by eight OR gates
Improvement: Mapping expanded by eight XOR gates
Improvement: Mapping expanded by four flip-flops
Improvement: Added mute function in the mapping
Improvement: Current-limited motor and AUX outputs, adjustable for digital and analog operation via CV in%
Improvement: Constant braking distance introduced, ekinstellbar over CV
Improvement: Leakage of the locomotive was improved
Improvement: Recognition of Märklin participants on the SUSI bus
Improvement: Parameter for brake squeal adjustable via CV
Improvement: Driving sound can be influenced by driving or load, adjustable by CV
Bugfix: Motor wince and light flare eliminated with AC switching pulse
Bugfix: Last station of multi-station announcement is saved
Bugfix: Special function change of journey corrected
Bugfix: Bug in direction change sound fixed
Bugfix: Error during the on / off delay of auxes corrected

Version: 3.2.0.0 (October 9, 2017)
Improvement: New engine type 8 for engines that only need a short EMF measurement break (Robel, various bell anchors etc.)
Improvement: SUSI buffer control for external capacitive voltage buffers
Improvement: New function "Motor Off" for controlling function models
Improvement: New command SUSI-Slow for function models (Limits the maximum speed with the platform / crane / etc. extended)
Bugfix: Bug in the sound part eliminated
Bugfix: Bug in the controller part eliminated
Bugfix: Fixed bug in mfx processing
Bugfix: Fixed bug with random noise

Edited by user 11 September 2025 11:48:18(UTC)  | Reason: header

Just tried it on my Eurotrain T3, and the decoder firmware is level 3.0.1.12. I don't think there could be any facility for updating decoder firmware on the production line, so the decoder will have the firmware that was current when it was manufactured (wherever that is!). Probably this was a long time before the loco was assembled.

Interestingly, though, I could update it with the 60971, so my T3 is now at level 3.2.0.3!

Nigel

Yes, most new decoders (if not all of them) are the same hardware as the retrofit decoders (mLD3/mSD3). Updateable, but sound locked. I think this is a great improvement over the earlier "decoder lottery".

Early adopters of the recent main CS2 update 4.3.2(8) will have received a regressive 3.0.1.8 decoder library.

since then the 3.2.0.3 library has again been made available

Just a catchup update to cover off two updates that , at this stage , are specific to the "G" decoder (248245_239) and what Marklin are introducing as the "Start Up Decoder" (280229_237)
The updates are available through the mDT

Version: 3.2.0.5 (February 13, 2019)
Bugfix: Issues related to Mfx login with connected 60974 or other buffers have been corrected
Notice: New decoder version "Start up" has been introduced
Improvement: Improved shutdown behavior with overcurrent on the motor
Improvement: Detection of the sensor signal improved
Version: 3.2.0.4 (January 21, 2019)
Bugfix: If the direction reversal bit is set, the direction can now be changed correctly with a change of direction
Bugfix: If the direction reversal bit is set, a change of driving does not lead to a change of direction anymore

Edited by user 12 November 2019 07:46:16(UTC)  | Reason: Not specified

So we can not transfer with USB stick or send project directly to CS3.

Amazing progress M

I have had no trouble upgrading the engine with mSD3 decoder with the latest 3.2.1.0 firmware.

My issues after upgrading from CS2 for CS3+ the mDTool3 does not manage to send file directly or the CS3 doesn't read files from USB stick.

The mDT3 recognize CS3 but it doesn't allow to transfer

Its really high time that M solve this (No rocket science!)

I turned on my CS3 today and noticed there was an update - it loaded the new decoder firmware. Now one should be able to update decoder firmware from the CS3 to the loco directly via a programming track.

I updated my Köf II (from set 26605). The Köf II has decoder 263819 247 which upgraded from version 3.2.0.3 to the latest 3.2.1.0 (from August 1, 2019) as indicated in Peter's (clapcott) post (although I think he meant to update the dates in his tables to 2019).

I used the method in this link: Update Firmware in Märklin mSD3 mLD3 Decoders. The instructions are in Danish, but a website translator worked for me. Note, under How To Do, it says to select the configure tab, it should be the set-up tab to find the U button in the lower right hand corner of the screen.

Cheers,

Harold.

P.S.: Peter - could you update your tables to show the proper year of the decoder firmware version updates. From post #9 onward, you seem to have been stuck in 2018!

The latest CS 3 software version is 3.4.1

https://www.maerklin.de/...e/downloads/cs3-updates/

https://www.maerklin.de/...formationen_1-4-1_en.pdf

As @Crazy Harry mentioned already, this week was another small update for the CS 3. Maerklin wrote about optimizing the shut down and/or restart process. I installed this update, but the software version number remained at 3.4.1.

its still on the server:https://www.maerklin.de/fileadmin/media/service/decoder-updates/mDecoderTool3-v340-Setup.zip

CHANGELOG

Version 3.4.0 - 23.10.2019
- Feature: Create your own sounds, select your own sounds (wav, mp3) step by step, process them
automatically and sort them into the sound library (your own library)
- Feature: Decoder projects for all, for both retrofit and serial decoders, new display in mDecoderTool3
and storage structure on the Märklin server
- Feature: The mDecoderTool3 supports mLD track H0 for all-current/field-coil motor (60906)
- Improvement: Decoder with the Decoder-Programmer (60971) read out improved, communication
between mDecoderTool3 and the serial interface in Windows improved
- Improvement: Decoder (mLD/mSD, mLD3/mSD3) programmed and tested via central CS2 from v4.2.9
on revised, improved and optimized
- Improvement: Decoder (mLD/mSD, mLD3/mSD3) programming and testing via central CS3 from v1.4.1
on revised, improved and optimized
- Improvement: New firmware is loaded from the Märklin server without having to create or open a project
- Improvement: Tooltips added to the dashboard functions
- Improvement: Added more missing status and tooltips in start, dash and detail boards
- Improvement: When a project is loaded, it is always switched to the dashboard, whether from the start
board or the detail board.
- Improvement: In the help menu, the manual of the mDecoderTool3 can be called up
- Improvement: Some CV names and texts in mDecoderTool3 and the decoder templates revised, unified
and provided with units and factors
- Improvement: The program directory has been restructured and cleaned up, texts and instructions as
well as languages and templates, etc.
- Improvement: In the mapping the fields of the actions are dynamically adapted to the window size,
helpful for long sound paths
- Improvement: For a better overview only the valid libraries and sound groups are displayed in the sound
library
- Improvement: The dialog windows can be moved freely with the mouse
- Improvement: The description files of a decoder project were updated (article numbers) and extended to
all functions and sounds.
- Bugfix: When converting the data structure (fds) to v3, the sound CVs brake threshold and brake
bandwidth are swapped, but the CV values were not swapped
- Bugfix: The Sound CVs Brake Threshold, Brake Bandwidth and Brake Deceleration Correction were not
saved after being read into an open project
- Bugfix: The sound CVs of the individual volume levels were displayed correctly but not saved correctly
after changing them
- Bugfix: In the sound selection the sound paths, to distinguish the libraries 'own library' and 'm library',
were not displayed correctly
- Bugfix: When installing version 3.3.0 the old and new decoder templates were not de- and installed
correctly
- Bugfix: In the 'Configure function keys' dialog, newly configured function keys were lost with the check
mark 'Show only active elements'
- Bugfix: If a decoder was programmed, the CVs of the project could be changed in the detail board,
despite the progress bar running, quasi 'behind it
- Bugfix: If a decoder was programmed, the buttons in the dashboard could be pressed 'behind' the
running progress bar
- Bugfix: If a decoder was programmed with a changed but not yet saved project, it was still programmed
with the old CV values after the hint dialog
- Bugfix: In the mapping was the on and off delay of the physics. Outputs (mLD3/mSD3) reversed
- Bugfix: Although no project was selected yet, it was possible to save it in the startboard with 'save' or
'save as

I already see bugs and it may require a CS3 update before the mDT3 v3.4.0 should work.

The CS3 reject receive to big size of files…

So it published in the wrong order

Hello!

During this Corona isolation I have tried to use mDecoder tool 3.4 ( latest version ) with my PC trying to use CS3Plus, but I have not figured how I can make decoder tool to see CS3Plus.
Tool see the USB stick 60971 and works fine, but when My Pc is connected to network and CS3Plus is connected to network and I start mDecoder tool 3.4 in my Pc it won't see running CS3Plöus which have the latest firmware and all software.
Please can anybody tell me how I could make these two to see each other and I could make decoder programming through the network from my PC to the loco staying on the programming track.

I hope someone can help me
Regards

Jukka

Hello,
I did change configuration in CAN put it to broadcast mode and I give a destination address ( which is my PCs address ), Now it works and I can see CS3 in the mDecondertool3.

Thank you for help

Regards
Jukka

I tried reading a decoder via my CS3 and the mDecoderTool3 software (all at latest version) and was not successful. My belief is that there is no two way communication between the decoder tool software and central station via the local area network (i.e.: only download no upload). Two way communication is only available via hard connection on the USB port with the decoder programming tool hardware (USB stick 60971). I personally don't have the hardware. It would be nice to read the decoders without buying the extra decoder tool.

I understand from the latest Marklin videos that downloading decoder information including sound files takes hours via the local area network and minutes (or less) via the USB connection.

The decoder programming tool is most useful if one reads and writes to decoders often.

Cheers,

Harold.

Hello Jukka.
yesterday I found 2 explain videos from Maerklin. Because of this corona situation Maerklin is doing so called live videos almost every day. 2 weeks ago they published videos explaining the mDT software. Of course, the videos are in German and every video is about 45 minutes long. I still have not yet seen these 2 videos myself in total. But want to send you the links. Perhaps it helps you or others in the forum.

Märklin Live - Decoder Tool für Nachrüstdecoder



Märklin Live - Decoder Tool für Nachrüstdecoder Teil 2




If you want to ask these Maerklin guys personally, you find them for a chat on You Tube.

https://www.maerklin.de/de/lp/2019/live/

Next broadcasting will be April 20th, 2020 at 16:30 MESZ (Time in Germany).

Regards

TEEWolf

hi
as fas I understand it's very little you can do with factory programmed decoder and Mdecoder Tool using a CS2/3.
but you should be able to select the locomotive and test it.
The locomotive must be selected as shown below, (click on the grey locomotive symbol)



your IP settings seem a bit "unconventional", but if it works......
a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on a network so they can communicate with other IP networks. This is probably done by your cable router/modem. Having a fixed IP on your cs is quite sensible, but its highly recommended to have it just outside your DHCP range. I would suggest that you use automatic DHCP, until you have a bit more knowledge about networks.

Hi John
I have also had some difficulties using the mDecoderTool3. Here is my check list:
- mDecoderTool3 must be at the last version (v3.4.0) otherwide it will propose to update it.
- the CSx (2 or 3) must be coldstarted with a blank memory stick ALREADY plugged in it.

- the CSx is with the loco to program on the connected program track with POWER ON, the loco is stopped and no sound.
- the mDecoderTool3 is started and the PC is connected to the CSx by an Ethernet cable
- now the CSx appears on the screen

- press the loco symbol on the screen
If no loco is displayed like this

then you have to re-boot the CSx while the Ethernet cable is connected
Otherwise you have a drop down list of locos

Once you have selected the loco, its icon is displayed (bottom of screen)

Selecting the "Eye" button (just above the CSx) you have this

Note here that the STOP key is pressed and needs unlocking prior to any programming
Now all this must be made while a valid project has been selected (It should have been from the start)

Note that the arrow to start programming is now there just above the "eye" key.
Once pushed, a programming confirmation is asked and a question is asked with / without Sounds?

Now confirming will start the programming phase starting with the transfer of 4 files
ATTENTION When the programming is finished you must select reset to finish the programming (failure to do it will cancel the programming.

NOTE: Märklin proposes to download a new version 3.4.1 but when doing so, nothing is dowloaded so for now we stay with V 3.4.0
I hope this helps
Jean

Hello Jean

Wow, thank you so much for the effort which you put into describing this method.
I really thank you very much.

I do everything exactly as you prescribed.
I get the CS2 to show in the Mdecoder screen, and it has the correct router IP address and serial number of the CS2.
I get to see the locomotive list in the drop down box and select the loco on the programming track, as you showed, so the CS is communicating with the PC.
I get to test drive the loco from the PC, and lights and speed control, reverse, all operate with the loco on the programming track, also reflecting the same on the CS2 controls, so the PC can send instructions to the programming track.
I can load a project and see the functions on the Mdecoder Tool.
All of that works.

The only thing is that after selecting the loco from the drop down box, the loco box remains 'greyed out' and there is no picture of the loco, as in your picture.
For some reason, the error message says "No locomotive data received from the Central Station".

May I ask you : which CS hardware and software versions are you running ?
My 60215 is probably 6 years old, and I have actually not updated the software since I purchased it.
Was there possibly a CS2 software bug fix to correct the above issue ?
I am running the Mdecoder Tool software v3.4.0

Regards
John

My CS2 software is 4.1.0(3).
I suppose that this could be the problem.
I should probably do a software update and then try again.

Regards
John

Hi all

Just to let you know that I have now achieved success with the problem which I was having.
I update my CS2 software to v4.2.9 and now the Mdecoder Tool reads the loco information from the CS2.
The 'greyed out' box is now full, there is a picture there !

Now for the next steps ...

Thanks for all of the assistance so far.

Regards
John

agrees with Eduardo,

Upgrade to the latest firmware through the track connected with CS2 then try...

another way is to move the files with USB stick and you find them under following path when the project is open

C:\Users\"your account"\AppData\Local\Temp\mDecoderTool3\"your project"

folders are hidden in the window system

Create following path folders on the USB stick and copy the file into each


\\cs2\update\fds\
*.fds
*.htm

\\cs2\update\snd\
*.html
*.snd

Have not been able to figure out how to update with files with USB stick on CS3

Lite disappointed that mDT 3.4.1 doesn't allow reading decoder settings through CS3

Hi John
I also believe Eduardo is right. I remember having such a problem on a decoder so I updated the decoder software with the CS2 on line and a memory stick (my memory is a little fuzzy sorry)
Jean

Hi Jean
Where is the 'Reset' button ?
Is it on the PC or is it on the CS2 ?

Do you mean the one in the CS2 where the CVs are updated ?

There are some buttons there, Reset , Sound, Update , etc, I can't remember them all now.

Regards
John

Hi John

Here is a video on how to update de firmware of a decoder (outside of mDecoderTool3)

It seems akward you have to do this BEFORE using the mDecoderTool3 but it is so.
Cheers
Jean

You will get the question when upload a new project and then it will resetting the existing locomotive and reloading it with new features...