Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Finally broke down and bought the Tsunami PTB-100 Programming Booster

6330 views
26 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    September 2003
  • From: Southeast Texas
  • 5,449 posts
Finally broke down and bought the Tsunami PTB-100 Programming Booster
Posted by mobilman44 on Sunday, February 28, 2016 2:11 PM

A few years ago I picked up two new Bowser FT B power/sound chassis for the Bowser ABBA consist.  I've had bad luck with them and both were sent back to Bowser for repair (decoder replacement).  But before and after the replacements, I was having difficulty programming them.  I found the best success with operations programming but with erratic results.

I learned that I needed a "booster", and the Tsunami PTB-100 was recommended.  Given the Bowser sound units are Tsunami, this only made sense.  So reluctantly I bought one ($50 on Ebay), got it yesterday, and installed it this morning.

Well, it works!  I can now do all my programming on the dedicated programming track and the heretofore problem units are no longer programming nightmares.

While its a shame something extra was needed for the Tsunamis, at least the addition does work and takes the stress out of what should be routine stuff.

Wish I had bought it sooner (or not bought the Bowser sound chassisss).

ENJOY  !

 

Mobilman44

 

Living in southeast Texas, formerly modeling the "postwar" Santa Fe and Illinois Central 

  • Member since
    January 2014
  • From: Chicago area
  • 335 posts
Posted by Arto on Sunday, February 28, 2016 3:20 PM

I'm a DCC newbie and ran into the same problem on the first two updates I did to a couple of Athearn Genesis DCC-Ready locos. The Tsunami OEM sound decoders apparently need more power to program them than what the command station booster (Digitrax DCS100) will supply to the programming track.

The catch 22 here is that in all their great wisdom Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline. Can't program on the mainline. Can't program on the programming track ~ without a booster for the booster.

It's too bad so many DCC manufacturers haven't updated their hardware in many, many years. I've found it kind of frustrating to find that after buying a top-of-the-line DCC system that I have to keep buying so many add-on's to get everything to work the way I expected in the first place.

On the other hand, maybe we should all count our blessings. I can't wait (yes, I can) to see what happens if & when the model railroad manufacturers pick up on what has happened in the audiophile world which has transformed into something now called "luxury audio". Snake Oil extrodinaire. And $$$$$$$$ too. First on the list would be "special DCC wire" ($100+/ft) for bus & feeders and $100/oz track cleaner that makes the locomotive "sound better".

  • Member since
    July 2006
  • From: Pittsburgh, PA
  • 1,796 posts
Posted by JoeinPA on Sunday, February 28, 2016 6:39 PM

Mobilman:

I had problems programming and reading back Cvs on the programming track with Tsunamis as well as QSIs and the PTB100 cured those problems. Contrary to Arto's experience I can program on the main without the booster except for changing addresses. I don't know about any "locking out" issues.

Joe

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Sunday, February 28, 2016 6:59 PM

 The Zephyr puts out more power to the program track than the DCS100, even when not using "blast" mode. So I've never had a problem or a need for a booster. Since I've gotten rid of all Tsunamis, I don;t expect to have a problem when I add a DCS100 - my last layout was still small enough that the Zephyr was the command station, but track power was supplied by a DB150. Plus most of my programming is done off-layout with a PR3, which also has never had a problem reading anyone's decoder (I often take my program track and laptop to the club shows and fix other members' locos with JMRI - and there is a HUGE variety of decoders in use. Best is when the person has no idea what they had installed. At least I can get a manufacturer when the decoder is read). My standard sound decoder is Loksound and they seem to have no issues with needing extra power on the program track - the Lokprogrammer actually only uses a 12V power supply,

 Bowser has since upgraded their sound units to all use Loksound. The one I had with a Tsunami I swapped for a Loksound one, not for programming problems but because of the anemic horns. Plus my entire fleet with one exception, an Atlas Trainmaster, are all Loksounds of some sort, including my steamers with sound.

 Since these command stations all existed BEFORE the sound decoders that need boosters, I fault the decoder manufacturer for not testing this. They all say they comply with the NMRA specs, which is true, because this is another small detail they forgot to include, how much power is needed on the program track. The lower the better - so you cna safely test new installs without fear of frying the decoder if you have a wire crossed.

 Ops mode programming should work for anything. The one thing that is usually not supported is changing the address to another of the same type. IE< if the loco is 3, you can't ops mode program it to 10, or if it is 1234, you can't ops mode program it to 5678. You can, however, two step it - change 1234 to 3, then change 3 to 5678. Tsnumais definitely support Ops Mode programming, I almost exclusively use Ops Mode to adjust volumes and adjust things like CV 2-6. Sometimes you have to 'reset' a Tsunami to make those changes take - just tip the loco off the rails momentarily. Other decoders, I cna Ops Mode program the prime mover volume and just sit there and run up through the volume levels one by one and it instantly changes. Or have the loco sitting at spped step 1 but not quite able to move, so I start editing CV2 and gradually increase it until the loco moves. Again, none of this is a command station issue and not something that cna be fixed by altering the command station, it's in the decoder.

                      --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    July 2006
  • From: Bradford, Ontario
  • 15,797 posts
Posted by hon30critter on Monday, February 29, 2016 1:51 AM

Just FYI for anyone who is following the thread, I have an NCE Power Cab and it does not need a booster of any sort to program any decoder in either ops mode or program mode. In addition to Loksound Selects which are now my decoders of choice, I have a Loksound V3.5, Tsunamis (2), QSIs (3), Digitrax non-sound, and two older Soundtraxx LCDs.

I'm not trying to brag here. I just wanted to let those who may be contemplating buying a DCC system that NCE can handle them all without additional equipment. If someone knows of a decoder that NCE can't handle on its own please speak up.

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, February 29, 2016 6:39 AM

 Like I said, neither does Zephyr (or even the older DB150 - but that doesn't HAVE a program track output). The PowerPro command station usually needs a booster too, like the DCS100. It's all in what was made when. The PowerPro and DCS100 predate sound decoders, or at least ones that need extra power due to the way they are designed, the Zephyr and PowerCab came after.

                       --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    December 2001
  • From: Trois-Rivieres Quebec Canada
  • 1,063 posts
Posted by jalajoie on Monday, February 29, 2016 7:32 AM

In addition to what Randy wrote, the Digitrax PR3 in stand alone programmer mode, will also program any decoders (sound or silent) without the need of a programming track booster. I also beleive the Sprog III will also do the same. I wonder why Arto did not go that route instead of purchasing a PTB100.

 

Jack W.

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, February 29, 2016 8:23 AM

SPROG will do sound decoders with no booster. It's probably the fastest programming device you can get, at least whe using any 'modern' decoders tat support direct modes. Only thing faster use non-NMRA protocols and are proprietary to specific manufacturers, like the method used by ESU with the Lokprogrammer. Using the same method that can blast a few megs of sound files to the decoder in minutes, it reads and writes the hundreds of CVs in seconds.

              --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    February 2007
  • From: Christiana, TN
  • 2,134 posts
Posted by CSX Robert on Monday, February 29, 2016 9:03 AM

Arto
The catch 22 here is that in all their great wisdom Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline.

 

I've explained before that this ability is not locked out, so please quit repeating false information.

 

  • Member since
    December 2004
  • From: Pa.
  • 3,361 posts
Posted by DigitalGriffin on Monday, February 29, 2016 9:26 AM

Arto
The catch 22 here is that in all their great wisdom Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline. Can't program on the mainline. Can't program on the programming track ~ without a booster for the booster.



I'm not sure what you are talking about here BUT I never had an issue programming on the main. You just need to switch your system program mode to main.  (POM mode)

That said, the reason you couldn't program a sound decoder on a program track was to PROTECT THE DECODER.   Let me explain: In the early days everyone had to pretty much hand wire up their decoders.  There were no fancy standard sockets.  And to make matters worse not all engines were DCC ready.  For example some motors were directly grounded to frame.  Well if you applied full power to a decoder while the motor was not properly isolated or a function output where it wasn't properly isolated you RISKED burning out the decoder.  So to protect the decoder they operated in low power mode incase there was a short.

That said, sound decoders took a lot more power to start up, and as a result the couldn't be properly programmed on a low current track.  This is why boosters are needed!

 

Don - Specializing in layout DC->DCC conversions

Modeling C&O transition era and steel industries There's Nothing Like Big Steam!

  • Member since
    July 2006
  • From: Austin, Texas
  • 875 posts
Posted by jasperofzeal on Monday, February 29, 2016 10:54 AM

DigitalGriffin
 
Arto
The catch 22 here is that in all their great wisdom Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline. Can't program on the mainline. Can't program on the programming track ~ without a booster for the booster.

 



I'm not sure what you are talking about here BUT I never had an issue programming on the main. You just need to switch your system program mode to main.  (POM mode)

That said, the reason you couldn't program a sound decoder on a program track was to PROTECT THE DECODER.   Let me explain: In the early days everyone had to pretty much hand wire up their decoders.  There were no fancy standard sockets.  And to make matters worse not all engines were DCC ready.  For example some motors were directly grounded to frame.  Well if you applied full power to a decoder while the motor was not properly isolated or a function output where it wasn't properly isolated you RISKED burning out the decoder.  So to protect the decoder they operated in low power mode incase there was a short.

That said, sound decoders took a lot more power to start up, and as a result the couldn't be properly programmed on a low current track.  This is why boosters are needed!

 

You long windedly said the same thing Arto said.  Maybe Arto used the incorrect term of "locking out" but he is correct if your description is accurate.  If a decoder maker suggests you don't use POM in order to PROTECT THE DECODER but said decoder needs a booster when using the programming track, then indeed it's a catch 22.

That said, you and Arto are correct.  You were just trying to appear smarter by being more wordy yet still saying the same thing.

TONY

"If we never take the time, how can we ever have the time." - Merovingian (Matrix Reloaded)

  • Member since
    September 2004
  • From: Dearborn Station
  • 24,281 posts
Posted by richhotrain on Monday, February 29, 2016 1:39 PM

jasperofzeal
 
 
DigitalGriffin
 
Arto
The catch 22 here is that in all their great wisdom Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline. Can't program on the mainline. Can't program on the programming track ~ without a booster for the booster.


I'm not sure what you are talking about here BUT I never had an issue programming on the main. You just need to switch your system program mode to main.  (POM mode)

That said, the reason you couldn't program a sound decoder on a program track was to PROTECT THE DECODER.   Let me explain: In the early days everyone had to pretty much hand wire up their decoders.  There were no fancy standard sockets.  And to make matters worse not all engines were DCC ready.  For example some motors were directly grounded to frame.  Well if you applied full power to a decoder while the motor was not properly isolated or a function output where it wasn't properly isolated you RISKED burning out the decoder.  So to protect the decoder they operated in low power mode incase there was a short.

That said, sound decoders took a lot more power to start up, and as a result the couldn't be properly programmed on a low current track.  This is why boosters are needed!

 

You long windedly said the same thing Arto said.  Maybe Arto used the incorrect term of "locking out" but he is correct if your description is accurate.  If a decoder maker suggests you don't use POM in order to PROTECT THE DECODER but said decoder needs a booster when using the programming track, then indeed it's a catch 22.

That said, you and Arto are correct.  You were just mtrying to appear smarter by being more wordy yet still saying the same thing.

 

Seems to me that what Arto said was wrong and what Digital Griffin said was correct. Your reply seems unnecessarily sarcastic to me. I always find Digital Griffin's replies to be helpful and informative, including this one.

Rich

Alton Junction

  • Member since
    August 2006
  • 1,519 posts
Posted by trainnut1250 on Monday, February 29, 2016 11:45 PM

I program Tsunamis on the main all the time including OEM Spectrum and Athearn models....

Guy

see stuff at: the Willoughby Line Site

  • Member since
    January 2014
  • From: Chicago area
  • 335 posts
Posted by Arto on Tuesday, March 1, 2016 8:44 AM

jalajoie

In addition to what Randy wrote, the Digitrax PR3 in stand alone programmer mode, will also program any decoders (sound or silent) without the need of a programming track booster. I also beleive the Sprog III will also do the same. I wonder why Arto did not go that route instead of purchasing a PTB100.

 

 

Arto went that route (PTB100) because Arto is a DCC newbie and doesn't know what Sprog III is or if it will work wioth anything Arto has already spent $$$$$ bucks on.

Arto also went that route (PTB100) because that's what Arto's local dealer had in stock and recommended and Arto had go get on with it and didn't want to wait for anything that had to be ordered or bought online.

  • Member since
    January 2014
  • From: Chicago area
  • 335 posts
Posted by Arto on Tuesday, March 1, 2016 9:01 AM

CSX Robert

 

 
Arto
The catch 22 here is that in all their great wisdom Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline.

 

 

I've explained before that this ability is not locked out, so please quit repeating false information.

 

 

Then maybe you should learn some plain English.

I'm a new DCC user (as I've said for the thousandth time).

--> New user puts his first loco(s) on mainline track. All of the locos new user tries to program on mainline are BLI Blueline & Paragon2. What is newbie trying to do? Change the default address of 3 to something else. It all works.

--> New user decides to modify (upgrade) two DCC-ready Athern Genesis. Newbie decides best approach is to just use OEM components since newbi has ONE Athearn Genesis that is factory installed Tsunami.

--> Newbie user finds that he CANNOT program upgraded Athearn Genesis with Tsunami on mainline. Of course, all newbie wants to do at this point is change the locos address, which he can in fact not do. Newbie is "locked out" from performing this procedure on the mainline. Newbie finds this out from dealer (who also used the term "locked out").

--> newbie finds out (from dealer) that he needs to buy another component to boost power to the programing track so that he can program Tsunami on programming track.

Do you really need someone (as in newbie) to explain this to you?

If my response seems rather curt that's because it is. Anyone who doesn't like it can simply ignore me. This has been a rather frustrating (and expensive) two months.

It IS a catch 22. My dealer said it right. "Don't believe anything the manufacturers say".

  • Member since
    January 2014
  • From: Chicago area
  • 335 posts
Posted by Arto on Tuesday, March 1, 2016 10:24 AM
 
 
From Soundtraxx website:
 
Decoder will not program
§                                 For some Tsunami decoders, you must have either a PTB-100 Programming Track Booster or use programming on the main
 
AND
 
Cannot change address when programming on the main
§                                 You can only change to the type of address currently not in use when programming on the main. If using a short address, change it to a long address or vice versa. 
 
I tried the 4 digit address change with my Digitrax Super Chief Xtra DT402D. It wouldn’t work. Why, I don’t know (I’m new at this). Every time I entered the fourth digit it reverted back to two-digit address entry (Ad2 =???).  Hence, the reliance on the PTB-100 since I couldn’t  program a new address on the main for whatever reason.
 
From Digitrax Tsunami Diesel Reference Manual, page 3:
 
CV 1 Primary Address Control Description Contains the decoder’s primary address between 1 and 127: Bit 0-6: A0-A6, Decoder Address Bit 7: Not used. Must be set to 0! The decoder will process all valid instruction packets containing an address that matches the value contained in this register when CV 29, bit 5 is set to 0. Programming this register with a new value will automatically clear the Consist Address (CV 19) to 0 and clear the Extended Address Enable bit in CV 29 (bit 5). The decoder will ignore commands that attempt to program this register with values outside the range of 1 to 127.
 
Note that CV 1 can only be changed in operations mode if the extended address is enabled.
 
From a newbie end-user’s perspective, the translation is “locked out”. A new user would have to know how to change the above in order to do what I was trying to do.
 

 

Yes, I was able to find all this after the fact, because now I know what I should be looking for. The bottom line is, more components, more money, and more time spent trying to get things to work as expected instead of just running the trains. If that sounds like more fun to you that’s your prerogative. It’s not mine.
  • Member since
    January 2014
  • From: Chicago area
  • 335 posts
Posted by Arto on Tuesday, March 1, 2016 10:42 AM
And here’s some more.
 
 
Setting Addresses on Digitrax Super Chief Sets:

The DCS from Digitrax does not conform completely to the NMRA Recommended Practices for programming tracks.  But The Tsunami does. Early Tsunamis cannot have CV 17 or 18 (long, or 4-digit, address) programmed on the programming track with the Digitrax system. Rather than leaving their customers in a bind, SoundTraxx "jimmied" later units to overcome Digitrax' weakness. 

WORKAROUND: Program the 2 digit address of your choice on the programming track. Move to the main. Confirm operation of your loco on the main. Select Programming OPS Mode for the 2 digit address you've set into the loco. (Po display) Select AD2=???. Press the right knob to get into the 4 digit mode. Enter your desired 4 digit address. When your DT400 asks if you want to activate the 4 digit address, answer "Y". 

If you are using DecoderPro, as I do, here's what I find works. Set the 2 digit address on the programming track with the software and save the file. Move to the main and select programming on the main. Set the 4 digit address and select 4 digit addressing on the main. Quit and save the computer file. Operate the loco on the main with the 4 digit address. Reopen the computer file and continue customizing the loco on the main.

I Can't Read My Tsunami's CVs

Your command station (DCC set) probably was not designed to operate with these new sound decoders. Many aren't. You may need a Programming Track Booster to read your decoder. CLICK HERE to learn more.

I didn’t have Decoder Pro up & running until about a week ago.

 

This stuff is not “Plug and Play” as pretty much all of the propaganda from the manufacturers would lead one to believe.
  • Member since
    September 2003
  • From: Southeast Texas
  • 5,449 posts
Posted by mobilman44 on Tuesday, March 1, 2016 12:22 PM

Gracious me..........

My intent was to acknowledge that I truly did need the "boost" to do the programming I could not reliably do with my existing Digitrax Super Chief with a second booster. 

I surely did not intend for folks to get into a "contest" over what is right or wrong or what works or not or what should work or should not work. 

 

ENJOY  !

 

Mobilman44

 

Living in southeast Texas, formerly modeling the "postwar" Santa Fe and Illinois Central 

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Tuesday, March 1, 2016 2:01 PM

 Not saying there's anythign wrong with bying a PTB-100.

Love how SOundtraxx states THEIR issue as a problem with Digitrax. By "jimmying" it they mean adding the 2 cents worth of resistor and diode to limit the inrush current. 

 However, that 'workaround' is exactly what I stated. If the loco has a 2 digit address, you can program a logn address on the main, but not another 2 digit address. And if it has a logn address, you can program a short address but not a different long with using Ops Mode. Nothing is "locked out" (and some other brands fo decoders have this same restriction, and if you think about what happens when an address gets changed, and how Ops Mode works, it actually makes sense) and it does annoy me when a dealer who is the nearest thing to an expert you might have available offers misleading information. We had a guy from out of state come into the LHS one day all messed up with his DCC system. He had a small 4x8 layout and the LHS near him sold him a Super Chief radio system...he paid more for the DCC system than his entire other investment in model railroading at that point. ANyway, if you started typing a number in the throttle and when hitting the 4th digit, the throttle went back to AD2=, the something else is wrong. At that point it wasn't even communicating with the decoder, nor does the command station EVER know what brand of decoder it is talking to. Or care. Fresh out of the package, the decoder would have short address 3, which means if you wanted to program it to a long address on the main, it would work. Just as the Soundtraxx instructions state. Press Program until you get to Ops. Click the left knob to change from AD2= to AD4=. Key in your number, like 1234. Press enter. Display will say AD4=?/Y. Press enter again. On a DT402 you can be doubly sure by pressing enter a few times, because the AD4=?/Y never goes away until you press Exit. I suspect you were trying to program a 4 digitr address that wasn;t really a 4 digit address - anythign less than 127 is a 2 digit address on Digitrax. 128 and higher are all 4 digit addresses. Most people say short address and logn address, because they can;t figure out why 127 is 2 digit - it's because computers speak in binary, and the ones in decoders are 8 bits, which is 2 hexidecimal digits, except in the address, 1 of the 8 bits is used for other functionality, so you have 7 bits of data. 7 bits can represent decimal numbers up to 127. Back in the early days, Lenz left out some numbers and only went to 99, Digitrax and others allowed full access to the 7 bits and you could go to 127. Which is why today, 100-127 is a long address on Lenz, and if you program a decoder to long address 123 you cannot run it on Digitrax. Likewise, if you have short address 123 programmed on Digitrax, you cannot run it on Lenz. NCE can access both, but it uses a leading 0 or not to figure out which one you want, long or short address. 0123 is not the same as 123 on NCE.

                --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    September 2004
  • From: Dearborn Station
  • 24,281 posts
Posted by richhotrain on Tuesday, March 1, 2016 2:49 PM

rrinker

If the loco has a 2 digit address, you can program a logn address on the main, but not another 2 digit address. And if it has a logn address, you can program a short address but not a different long with using Ops Mode. Nothing is "locked out" 

I think that Arto is overlooking that important point about programming addresses on the main. Those quotes that he provided from the Soundtraxx web site actually are "troublehooting tips".

The words "cannot change address when programming on the main" are not a declarative statement from Soundtraxx that the Tsunami cannot change addresses on the main. Rather, those quoted words are a hypothetical user comment about being unable to change addresses on the main.

Soundtraxx then explains that you can only change to the type of address currently not in use when programming on the main. So, as Randy explains, if you want to change the long address POM, then you must first change from the current long address to a short address, then program a new long address. So, a Tsunami decoder may be programmed on the main including the long address.

Rich 

Alton Junction

  • Member since
    February 2007
  • From: Christiana, TN
  • 2,134 posts
Posted by CSX Robert on Tuesday, March 1, 2016 4:08 PM

Arto
Then maybe you should learn some plain English...

You stated Ops mode programming is locked out on the Tsunamis ("...Soundtraxx apparently decided it best to protect the end user from themselves by locking out the ability to program Tsunami on the mainline...").  It is not.  Where is my misunderstanding of plain English?

 

I can understanding you thinking it is after having trouble; however, after you made a similar statment in your previous thread, I explained to you that it was not.

  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Tuesday, March 1, 2016 6:30 PM

I'm not big on jargon and prefer plain English to the extent possible in technical discussions. But to say you're "locked out" as arto is using it here demonstrates confusion -- for himself and for others. Why?

Because you actually CAN lock a decoder and it has nothing to do with how Arto is using the term. Check CV 15 and CV 16. They should both be zero. If not, then the decoder is locked by this pair of codes. That is what "locking" a decoder is about. To refer to something else as being locked tends to confuse things for everybody. YMMV, but just suggesting we not be bull-headed about this for everyone's understanding, whether needing to help or helping someone else.

People may quibble with Soundtraxx's approach to this, but all it takes is one fried decoder to more than pay for the PTB-100 (NOT including your labor to R&R, plus aggravation, etc). Maybe there was another way this could have been done, but it wasn't. Not point in doing anything but understanding how it works. It is what it is. As Dave noted, a PowerCab has no problem dealing with this, as do other command stations some have mentioned. Not all do, though, so check this if it matters to you.

Mike Lehman

Urbana, IL

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Tuesday, March 1, 2016 7:47 PM

 But if locked using the decoder lock settings, even a PTB-100 won't save you. The only good news is that there are only 255 possible options, and there's no permanent lockout like a computer or smartphone after too many invalid tries.

                         --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Tuesday, March 1, 2016 10:51 PM

rrinker

 But if locked using the decoder lock settings, even a PTB-100 won't save you. The only good news is that there are only 255 possible options, and there's no permanent lockout like a computer or smartphone after too many invalid tries.

                         --Randy

 

 

Laugh

Randy,

That is true, a PTB-100 won't help at all with a key to the lock.

To avoid guessing, can't DecoderPro just read those values? Mine reads them as 0 and 0. Or can't they be read on a programming track, where you do get read back from the decoder? Might take less than 255 tries that way, but I don't bother with the darn things myself, so don't know for sure.

Mike Lehman

Urbana, IL

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Wednesday, March 2, 2016 6:48 AM

 Never tried. They might be readable. The idea is to prevent accidental programming, not literally lock the decoder, so it's not like it tries to hide the secret combination to the cookie jar. I guess though if the problem is your system can't read the decoder onthe program track, you'd have to blind test the possible combinations on the main.

                     --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    December 2004
  • From: Pa.
  • 3,361 posts
Posted by DigitalGriffin on Wednesday, March 2, 2016 9:34 AM

Arto,

I can understand your frustration with DCC (especially if computers frustrate you.)

 

The problem you are experiencing with reprogramming a 4 digit address on the main isn't a limitation of tsunami but one of the DCC standard.

 

When you send commands to change a variable in a decoder on the main, you have to address it to a certain decoder.  That way the train knows the command was meant for it and not the other trains on the track.

 

The command structure kind of looks like this

 

Decoder Address we are broasting to, CV #, Value

 

Well your 4 digit address is based on CV17, and CV18.  So this is a two step programming process.

 

So lets say you want to change your loco from address 1234 to 4567

 

Well your commands would look like

Decoder Address, CV, Value

1234, CV17, 209

1234, CV18,  215

 

But the second command won't take.  Why?  Because when you executed the first command, you reprogrammed half the address.  Your train is no longer 1234, and it's not 4567 either.  (And unless you are good with hex math, you won't know what address your train is between those two steps)

 

There are two work arounds for this.

 

Workaround #1:

1.  Switch CV29 to use the short address.

2.  Reprogram CV17, and CV18 using the short address

3.  Switch CV29 to use the long address again.

 

Workaround #2:

1.  Take off all locomotives on the track except one being programmed

2.  Set address to 0

3.  try programming CV17, CV18

 

The second work around may or may not work for certain brand decoders.  It is not gaurenteed.  

 

That said, your booster is NOT a bad purchase.  It will make programming in the future easier.  And if you get frustrated again, don't be afraid to ask.  We were all new at one point.

 

From this point out I think you will find DCC easier if you run multiple trains, have a large layout, or wish to enjoy sound.

-Don

Don - Specializing in layout DC->DCC conversions

Modeling C&O transition era and steel industries There's Nothing Like Big Steam!

  • Member since
    February 2007
  • From: Christiana, TN
  • 2,134 posts
Posted by CSX Robert on Wednesday, March 2, 2016 9:08 PM

Arto
And here’s some more.   http://mrdccu.com/curriculum/soundtraxx/tsunami.html   Setting Addresses on Digitrax Super Chief Sets: The DCS from Digitrax does not conform completely to the NMRA Recommended Practices for programming tracks.  But The Tsunami does. Early Tsunamis cannot have CV 17 or 18 (long, or 4-digit, address) programmed on the programming track with the Digitrax system. Rather than leaving their customers in a bind, SoundTraxx "jimmied" later units to overcome Digitrax' weakness. 

I don't know who "Mr. DCC" is, but he is wrong about the problem being Digitrax's program track not conforming to NMRA recommended practices.  You can't really say that either the decoder or the command staion didn't comply, because initially there was some ambiguity in the specs - the NMRA recommended "limited energy" for service mode programming, but did not specify what qualified as limited energy (they have since upgraded the spec to define limited energy).  The fact is, however, when Tsunamis were first introduced, several command stations would not program them on the program track(certainly not just Digitrax), so I feel the fault is with the Soundtraxx because they apparently did not test them with a variety of command stations.

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!