MSD3 function mapping using DCC

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MSD3 function mapping using DCC

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Diesel2000		#1 Posted : 22 March 2022 15:41:24(UTC) Retweet
Joined: 14/12/2020(UTC) Posts: 29 Location: Illinois, Chicago		Hi, I have some LGB locos that have MSD3 decoders in them and I use a DCC system for control (Massoth). Does anyone have experience with updating function mappings using a DCC and not MFX system? The manual sort of describes the process, but it seems to be pretty lacking and I have not been able to figure out how to execute it. There are no instructions or examples of what the logical operators "and 1" through "and 16", "or 1" through "or 8", and "Xor 1" through "Xor 4" do in the decoder's function mapping environment. Likewise, there is no explanation of what the Flip Flops 1 through 4 do. There is no clear method to delete a line from the 80 available once it is created. Here is the manual to which I'm referring, pages 16-19 https://static.maerklin....cb145768d31597737980.pdf Thanks!


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H0		#2 Posted : 22 March 2022 15:55:30(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,267 Location: DE-NW		Originally Posted by: Diesel2000 There is no clear method to delete a line from the 80 available once it is created. Overwrite it so it does nothing. Probably achieved by having 0 values everywhere. Originally Posted by: Diesel2000 There are no instructions or examples of what the logical operators "and 1" through "and 16", "or 1" through "or 8", and "Xor 1" through "Xor 4" do in the decoder's function mapping environment. I have no idea yet. Maybe they can be used to connect lines by setting those values in CV 35 in one line and in CV 36 of another line. Another documentation file, German only, and not providing much additional information: https://www.maerklin.de/...Zusatzanleitung_0716.pdf
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS


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phils2um		#3 Posted : 23 March 2022 07:52:57(UTC) Retweet
Joined: 12/01/2016(UTC) Posts: 165 Location: Michigan, Ann Arbor		Originally Posted by: Diesel2000 There are no instructions or examples of what the logical operators "and 1" through "and 16", "or 1" through "or 8", and "Xor 1" through "Xor 4" do in the decoder's function mapping environment. Likewise, there is no explanation of what the Flip Flops 1 through 4 do. There is no clear method to delete a line from the 80 available once it is created. Hi Diesel, this looks awfully familiar - word for word dare I say?
		Phil S.


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Diesel2000		#4 Posted : 23 March 2022 11:05:32(UTC) Retweet
Joined: 14/12/2020(UTC) Posts: 29 Location: Illinois, Chicago		Originally Posted by: phils2um Originally Posted by: Diesel2000 There are no instructions or examples of what the logical operators "and 1" through "and 16", "or 1" through "or 8", and "Xor 1" through "Xor 4" do in the decoder's function mapping environment. Likewise, there is no explanation of what the Flip Flops 1 through 4 do. There is no clear method to delete a line from the 80 available once it is created. Hi Diesel, this looks awfully familiar - word for word dare I say? Phil - yes sorry I did lift your text from the other forum as you described exactly what we want to know after testing. Apologies and I will edit or remove if you don’t approve.


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costing		#5 Posted : 23 March 2022 16:04:32(UTC) Retweet
Joined: 20/08/2018(UTC) Posts: 157 Location: Geneve, Geneva		JMRI knows about the M* decoders and they can be programmed over DCC too. The function mapping tab of JMRI for a MSD3 decoder looks like the screenshot below. It's slightly more intelligible than the decoder manual :)
		JMRI on RPi & DCC++ / C-track / Marklin, Roco, ESU, Bemo locos / Christmas car collector

1 user liked this useful post by costing		phils2um
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Diesel2000		#6 Posted : 23 March 2022 16:54:43(UTC) Retweet
Joined: 14/12/2020(UTC) Posts: 29 Location: Illinois, Chicago		Originally Posted by: costing JMRI knows about the M* decoders and they can be programmed over DCC too. The function mapping tab of JMRI for a MSD3 decoder looks like the screenshot below. It's slightly more intelligible than the decoder manual :) That looks to be exactly whats needed here if I can set up JMRI through my Massoth 1210z CS. Thank you!


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phils2um		#7 Posted : 23 March 2022 22:37:14(UTC) Retweet
Joined: 12/01/2016(UTC) Posts: 165 Location: Michigan, Ann Arbor		Originally Posted by: Diesel2000 Phil - yes sorry I did lift your text from the other forum as you described exactly what we want to know after testing. No, I'm OK with it. i did email the Märklin Dudes the same question with a suggestion that the topic be addressed in one of upcoming Zoom meetings. Have not heard back from them yet. Thanks for bringing it up here. Costing - Thanks for the info about the JMRI template. I still would like an explanation/understandng of how the logicals work - I don't care for "black boxes" in situations like this!
		Phil S.

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patnaik		#8 Posted : 29 March 2022 03:33:17(UTC) Retweet
Joined: 22/08/2020(UTC) Posts: 26 Location: Maryland, Silver Spring		I too would like to know how the logicals work. I have done some simple fiddling with function mapping of a mSD/3 with JMRI via an Intellibox


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