Date: 18.12.15
Manual to personal carriage decoder
WD-PW115, WD-PW 170, WD-PW-230, WD-
PW260, WD-PW290
Document: SW 3.0 / 01www.tec4trains.deSeite
31 from 42
Revolutionen im kleinen Maßstab
The functions (addresses in 3-Byte-format in accordance with RP 9.2.1) from 1 through 90 are not
valid TCCS-functions and are available for general locomotive tasks, i.e. these addresses are only
enhancements of the existing functions F0 through F12.
Functions that trigger a pulse are generally transmitted in the "ON"-status. First of all, FF = 01 and
02 (uncouple) are concerned. The DCC-control center may repeat these functions for a maximum of
only 1 second. If LD-1x receives a pulse address, the reception of this address will be blocked for 1
second, i.e. a double excitation will not be possible during this time span.
A pulse address/function does not react when the state OFF is being transmitted.
The number of repetitions during the 1 second time span is irrelevant. For a train in standstill a
repetition should generally be superfluous; for a train in motion the command should be repeated
several times during that second due to the wheel/rail-problem. It is recommended to repeat the
command three times.
Results of the train identification
The extensive analysis of the LD-1x locomotive-decoders regarding the structure of the train set
usually is fully automatic. The results that the locomotive-decoder determines will be stored as CVs
for control purposes. These results can be read out via the service-mode with any high quality DCC-
control centre. The most important results will be stored in CV 112 through 117 and 180 through
185.
CV 112/113 indicates the lowest version /revision number of all LD-1x-decoders used in the
train set.
CV 114/115 indicates the lowest version / revision number of all WD-GWx-decoders used
in the train set.
CV 116/117 indicated the lowest version / revision number of all WD-PWxxx-decoders used
in the train set.
CV 180 indicates the number of recognized vehicles (decoders) in a train set, without count-
ing the locomotive that is leading the train.
CV 181 indicates the number of recognized vehicles (decoders) on the driver's cab end 1
(for steam engines: boiler end). This coupling should be recognisable due to the cable's
white base colour.
CV 182 indicates the number of recognized vehicles (decoders) on the driver's cab end 2
(for steam engines: tender end). This coupling should be recognisable due to the cable's yel-
low base colour.
In case of an error, CV 184 & 185 will provide a code which will help our support trouble-
shooting.
CV 186 / CV 187 indicate the activation number of the coupling on the driver's cab end 1.
The total activation value can be calculated with the following equation: total value = CV
186 * 256 + CV 187
CV 188 / CV 189 indicate the activation number of the coupling on the driver's cab end 2.
The total activation value can be calculated with the following equation: total value = CV
188 * 256 + CV 189
For queries regarding the software version used within a train set, please note the following: