
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
39 from 42
Revolutionen im kleinen Maßstab
Overview of CV-variable
Within the DCC-protocol, many decoder features can be adapted to specific situations.
The columns CV & Bit hold the addresses of the CV-variables and maybe the corresponding bit in
accordance with the DCC-configuration. If you are interested in further details on the DCC-
protocol, please use the following links: www.morop.org (various languages) or www.nmra.com
(English only).
Column „valid range“ lists the valid ranges for all variables. Becomes in the CV variable
60 200 written, a Decoder-Reset is triggered. All CVs will be reset to their reset-values or the manu-
facturer's default values. If CV 60 contains a value ≠ 0, the locomotive will have to stand on the
track for a minimum of 5 seconds in order to execute the corresponding command. Please make
sure to follow the instructions of how to program CV-variables inwagon-decoders via coupling bus
(page "LD-1x Manual").
For variables that are written bit-by-bit, the counting convention used for the control centre needs to
be considered. Some manufacturers rather prefer the low-value bit 1, as opposed to the standard bit
0 used in information technology. T4T always uses 0 as low-value bit address.
All values are decimals.
The column „SW“ tells you as of which version (see CV 255) this function has been or will be im-
plemented.
CV-Variables of the WD-PWxxx-Decoder (CV-programming)
CV
Bit Description
Valid Range factory
setting
SW Page
7
1: = LD-1L
2: = LD-1M
3: = LD-1S
4: = LD-1MTC
5: = LD-1PL22
16: = WD-GW0
17: = WD-GW2
18: = WD-GW4
19: = WD-GWF4
24: = WD-PWxxx
100: = TS-1
read only
24
1
8
NMRA-manufacturer code for T4T, technology for trains
read only
20
1
30
2
1: over-current of the function outputs
0/1
0
1
36
4
1: over-current of the coupling bus / the car supply
0/1
0
1
5
1: over-voltage rail connection (U > 24VDC)
0/1
0
1
6
1: over-current in front coupling control (white base coloured
cable)
0/1
0
1
7
1: overload in rear coupling control (yellow base coloured cable) 0/1
0
1
49
0-4
Dimming value for function output 4
(6-pole plug white coupling page;
Contact 5&6)
0 - 28
15
1
33
7
1: = over current on function output 4
0/1
1
50
0-4
Dimming value for function output 3
Forehead light (of 6-pole plugs yellow coupling page; contact
5&6)
0 - 28
15
1
7
1: = over current on function output 3
0/1
1