Hi,

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I was programming an ESU Loksound V5 DCC decoder and noticed i could not activate any function above F12 using the JMRI Throttle in Decoder Pro.? I had another locomotive with a V5 decoder so i also tested the issue on that with the same results.? I'm using the PR4 as a standalone programmer on a dedicated programming track.

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The PR4 has the latest drivers from the Digitrax website and i also tried flashing the firmware.? Is this a limitation of the PR4 in standalone mode?? Am i missing a specific setting somewhere in Decoder Pro?? Any help would be appreciated.

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14:15:31,264 apps.util.Log4JUtil ? ? ? ? ? ? ? ? ? INFO ?- * JMRI log ** [main]
14:15:31,305 apps.util.Log4JUtil ? ? ? ? ? ? ? ? ? INFO ?- This log is stored in file: C:\Users\Semms40oz\JMRI\log\session.log [main]
14:15:31,307 apps.util.Log4JUtil ? ? ? ? ? ? ? ? ? INFO ?- This log is appended to file: C:\Users\Semms40oz\JMRI\log\messages.log [main]
14:15:31,390 apps.AppsBase ? ? ? ? ? ? ? ? ? ? ? ? INFO ?- DecoderPro version 5.10+Rca461bd266 starts under Java 17.0.14 on Windows 10 amd64 v10.0 at Fri Mar 21 14:15:31 EDT 2025 [main]
14:15:31,823 apps.gui3.Apps3 ? ? ? ? ? ? ? ? ? ? ? INFO ?- Starting with profile My_JMRI_Railroad.3f685e70 [main]
14:15:32,183 jmri.util.node.NodeIdentity ? ? ? ? ? INFO ?- Using 19742551-f6c4-41ef-a3d3-7effa4c90361 as the JMRI storage identity for profile id 3f685e70 [AWT-EventQueue-0]
14:15:32,481 xml.AbstractSerialConnectionConfigXml INFO ?- Starting to connect for "LocoNet" [main]
14:15:32,693 jmri.jmrix.loconet.pr4.PR4Adapter ? ? INFO ?- Connecting PR4 via COM3 VCOM PR4 [main]
14:15:32,704 .loconet.locobuffer.LocoBufferAdapter INFO ?- LocoNet: Port Communications Port (COM3) opened at 57600 baud, sees DTR: true RTS: true DSR: false CTS: false DCD: false flow: RTSCTS [main]
14:15:32,724 x.loconet.pr3.PR3SystemConnectionMemo INFO ?- Connection [L] initialized as "Stand Alone Programmer", no access to attached devices. (see preferences) [main]
14:15:32,758 jmri.jmrix.loconet.LnPacketizer ? ? ? INFO ?- lnPacketizer Started [main]
14:15:33,743 jmri.jmrit.roster.Roster ? ? ? ? ? ? ?INFO ?- Reading roster file with rootFromName(C:\Users\Semms40oz\JMRI\My_JMRI_Railroad.jmri\roster.xml) [main]
14:15:33,962 jmri.util.FileUtilSupport ? ? ? ? ? ? INFO ?- File path program: is C:\Program Files (x86)\JMRI\ [main]
14:15:33,963 jmri.util.FileUtilSupport ? ? ? ? ? ? INFO ?- File path preference: is C:\Users\Semms40oz\JMRI\My_JMRI_Railroad.jmri\ [main]
14:15:33,966 jmri.util.FileUtilSupport ? ? ? ? ? ? INFO ?- File path profile: is C:\Users\Semms40oz\JMRI\My_JMRI_Railroad.jmri\ [main]
14:15:33,970 jmri.util.FileUtilSupport ? ? ? ? ? ? INFO ?- File path settings: is C:\Users\Semms40oz\JMRI\ [main]
14:15:33,971 jmri.util.FileUtilSupport ? ? ? ? ? ? INFO ?- File path home: is C:\Users\Semms40oz\ [main]
14:15:33,973 jmri.util.FileUtilSupport ? ? ? ? ? ? INFO ?- File path scripts: is C:\Program Files (x86)\JMRI\jython\ [main]
14:15:34,781 t.permission.DefaultPermissionManager INFO ?- Permission file: C:\Users\Semms40oz\JMRI\.permissions.xml [main]
14:15:34,792 t.permission.DefaultPermissionManager INFO ?- Permission system is enabled: no [main]

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Thanks.

The PR4 is a programmer, not a command station, and therefore isn't intended to run a loco or test a decoder's functions (the very limited exception being certain Digitrax sound decoders).

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As you have found, trying to use it in a manner for which it was not designed may produce inconsistent results. It has long been my contention that the JMRI throttle be disabled when using a PR4 (or a PR3) in stand-alone programming mode.

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Steve

"Breezlys"

Thanks for the info.? I figured it was a limitation of the PR4.? I'm going to connect it to the DB150 and create another profile for decoder pro to run it with that and see if i can send functions above 12 that way.? I guess the ultimate goal is going to be using a DTDP switch to either have it in standalone mode or through the command station so i can program and then test the functions on the same programming track.

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That’s what I diss when I needed a stand-alone test system

Phil G