Programming Atlas #544099 and #447299 DCC Decoders

Atlas #544099 and #447399 DCC Decoders

unwanted shorts,

There must be NO electrical contact between the motor contacts and any part of the frame

Place the locomotive (without its plastic body) on your DCC programming track and read back the locomotive's address from the decoder. If the decoder is properly installed, you will be able to read back the factory pre-set address 03. If your system does not support reading decoder properties, observe carefully the decoder's behavior while on the low current programming track. Each time you try to program the decoder you can see the acknowledgement that is sent by the decoder in the form of a brief and minor jerk of the locomotive. A successful acknowledgement means that you have installed the decoder correctly.

Remove the locomotive from the track and, if necessary, correct any installation errors. Once you have successfully programmed the decoder, reinstall the plastic body and retest the locomotive on the programming track. If this test is successful, the locomotive is ready to use.

Programming Atlas #544099 and #447299 DCC Decoders

Atlas #544099 and #447299 DCC decoders support service mode and also operations mode programming. Using these programming methods, many features (such as the locomotive's address, acceleration, and configuration) can be customized to the individual locomotive in which the decoder is installed. The properties will be saved in non-volatile memory locations on the locomotive decoder so that they will retain their values even after the power has been removed. The values are set electronically, which means that the locomotive does not need to be opened again after the decoder has been installed in order to read or modify the values of these so-called Configuration Variables (CVs). DCC decoders have a total of 128 CVs. Not all of these CVs are used at this time since many have been reserved for future use.

All NMRA-compliant DCC Command Stations can be used to program Atlas #544099 and #447299 DCC decoders. With several entry-level systems, only CV #1 (the locomotive address) can be set unless you use a separate DCC programmer. More advanced DCC systems support the ability to set many more CVs.

This decoder is most readily programmed in either Direct Mode on the programming track or in Operations Mode on the main track. The specific details for reading and writing Configuration Variables with

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