When the values in CV15 and CV16 areĮqual, all CVs in the decoder can be read or written. for additional lights)ĬV15 is used to select the decoder that will respond. Because most users will use this mechanism with decoders that provideĭifferent functions, the recommended coding is:ģ: Function-only decoder (e.g. Identifies a single decoder, so a unique value must be assigned to each decoder in a Work with existing DCC systems without modificationĬV16 will carry a number from 0 to 7 inclusive.Discover the type of decoder(s) present inside a locomotive, without disassembly, and.Do service-mode read and write from a specific decoder, with no need to disconnect.Often need to have their CVs configured separately, a mechanism is needed to communicate with OneĬommon case is using separate decoders for motor control and sound. The locomotive apart so as to be able to load the Digitrax CV16 value).įinally, the bottom part of the page allows you to control the programming mode inĪlthough it's possible to use this tool in "Ops mode" (programming on the main), in thatĬase it's not able to confirm operations, so one can't be 100% sure that the right decoder isĭCC users sometimes want to install more than one decoder in a single locomotive. Operations to configure the Digitrax lock feature so you can use it. "Init DH163 + SoundTraxx" - If you have a DH163 or similar decoder with the lockįeature, plus another decoder without the feature, this button works through a series of.This button does aīunch of reads and writes to figure out what's happened and unlock the decoder. "Reset" - sometimes a decoder, even if installed by itself in the locomotive, can getĪccidentally locked when CV15 and/or CV16 is set to some spurious value.Buttons for decoders that aren't present will be disabled (grayed "Search" - walks through a long series of writes and reads to determine whichĭecoders are present. In the center are some buttons for automated operations you might find useful: Yes, that's ugly, but it can be made to work. Write the information for the non-locking decoder, overwriting what you put in it.Write the information for "2", which will go to both.Click "2" - both decoders are now active.One decoder with, say "2", and one without the lock feature, you can still configure them This is so you can write to an additional decoder without the lock feature. If you click the "Legacy" button, all decoders with the lock feature will be locked out. Status is shown in the middle of the window ("OK" in the illustration). If possible, the program tries to verify that the decoder is present and communicating the if you click "3", the decoder configured with "3" in CV16 will be unlocked. The Multi-Decoder Tool When this feature was first coming into use,Ī "Multi-Decoder Tool" was written for JMRI (see image to right).Īt the top are 8 buttons that you can click to unlock a particular decoder in the The user can then program those CVs using "constant" CVs so the program will not write them. Hence, people writing decoder definitions are strongly encouraged not to include CV15 andĬV16 (when they are used for decoder lock) in their definitions, or to include them only as Programming operations would be problematic. If a DecoderPro user did a write-all-sheets and changed either of those, future Rather, CV16 is a "set once before assembling the locomotive", and CV15 is an operational Really "configuration data", in the sense that you can freely adjust them and see what theyĭo. Really, the DecoderPro "paned programmer" shouldn't handle CV15 and CV16 at all. Values, this means you can use CV15 to select which decoder you want to talk to. Since you're supposed to originally set up the two decoders with different CV16 Only decoders that have the value in CV15 equal to the value in CV16 will respond to readsĪnd writes. They should have different values in CV16.ĬV15 is used to unlock one decoder (and lock the others), so it can be written. It uses CV15 andĬV16 is the ID of a particular decoder if you have more than one decoder in a locomotive, JMRI: DecoderPro User Guide Multi-Decoder Toolĭigitrax invented a mechanism for having more than oneĭecoder in locomotive, and still be able to read and write them separately. JMRI Setup and Installation JMRI environments. CTC Tools Supported hardware JMRI supports a wide range of devices, DCC systems, command stations, networks, and protocols.Layout Automation Use JMRI to automate parts of your layout and operations: Tools JMRI tools for working with your layout:
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