NOTE: Detailed information on the PIKO SmartDecoder XP 5.1 is available as a PDF file on our Webshop
on the page of the respective item number. The file contains a full description of all functions and
operating possibilities for the new SmartDecoder XP 5.1.
Description
The state-of-the-art PIKO SmartDecoder XP 5.1 inside in this PIKO locomotive is a compact yet powerful multi-protocol
PluX22 decoder. It complies with the current RCN standards in all areas and can be used in DCC, mfx® and Motorola®
digital systems. The decoder can be used on DC or AC analog layouts. It automatically senses what operating mode
is used on your layout and is RailCom®/RailCom Plus® compatible. The SmartDecoder XP 5.1 features several
programmable braking distance functions in addition to numerous other programmable functions.
The PIKO SmartDecoder XP5.1 Sound is load-regulated and features auto-adaptive motor control that works with of
a fundamentally newly developed traditional DC motors for a silky smooth ride as well as 1.2 Amp coreless motors.
The decoder will also tolerate a temporary current draw up to 2 Amps. The motor speed table can be set using the
minimum, median, and maximum motor speed (simple curve), or by the user-programable 28-speed step extended
curve. The decoder features two directional lighting outputs and seven additional special function outputs that can be
activated using function keys up to F68 (DCC). The switching (shunting) gear, with extended slow speed range, the
three possible starting and braking delays, as well as the many vehicle sounds are also switchable via function keys.
The sound of a suitable SUSI sound module can control specified function outputs as well as the motor output of the
decoder. For example, the lighting of a diesel locomotive flickers when the engine is started. The PIKO SmartDecoder
XP 5.1 is supported by the further developed power management in case of short-term voltage loss.
Installing the PIKO SmartDecoder XP 5.1
Remove the jumper plug from your model’s PluX22 interface. Insert the new decoder into the interface socket. Note that
PIN 11 is missing on the new decoder. Check for crossed wires and short circuits before and after reinstalling the shell.
Place the model on your programming track with programming mode activated on your DCC system. During programming
or when reading the model’s DCC address, a small amount of current will flow through the model, which does not affect
the decoder; even in the event of a short circuit.
Special functions A1 to A7
The decoder’s special function outputs A1 to A7 can only be activated if the desired functions are already connected to
the model’s PluX22 interface or if solder pads are available for the special function outputs on the main circuit board.
SUSI interface
The decoder’s SUSI interface is controlled by the PluX22 interface. If the main circuit board of the model is equipped
with a SUSI interface, you can either use a PIKO sound module with SUSI or a suitable single-function decoder. You
can find which CV should be programmed for its respective function output in the operating instructions. The decoder
is factory set to send data to the PIKO sound module via the SUSI interface.
CAUTION:
Soldering the decoder itself should only be done by experienced DCC professionals using appropriate
equipment. Decoders damaged by improper handling are not covered by the warranty.
First-time use of the decoder (state of delivery)
Enter address 3 on your DCC control system. Depending on your DCC system‘s data format, the decoder will
operate using 28 speed steps or in Motorola® mode. When using a RailCom Plus®-enabled DCC system or with
an mfx®-capable system, the decoder is recognized in a few seconds and can be operated immediately. If the
decoder is used on a conventional analog layout, it can be controlled with a DC or AC power pack. The decoder will
automatically detect the layout’s operating mode.
NOTE: In DC analog mode, your model will only start at a higher voltage than what you may accustomed to when
operating analog models. You will need to turn the throttle up for the model to start operating.
Function outputs in analog mode
It is possible to program the decoder so that function keys F0 - F12 (as they are assigned in the function mapping)
can also be activated in analog mode. To do this, CVs 13 & 14 must first be programmed with a DCC central control
unit. The corresponding values can be found in the CV table of the detailed operating instructions. The light function
F0 is factory-set to “on.”
* factory set values
CV
Description
Area
Value
1
Locomotive address
DCC: 1 - 127
Motorola
®
: 1 - 80
3
2
Minimum speed
(the speed from 0 until the locomotive is running at speed step 1)
0 - 255
0
3
Acceleration delay,
1 means every 5 milliseconds the actual motor speed is increased by 1. If the maximum
motor speed is 200 (CV 5 = 50 or CV 94 = 200), then the acceleration rate from 0 to
maximum speed is 1 second
0 - 255
30
4
Braking rate
(time factor like CV 3)
0 - 255
30
5
Maximum speed
(must be greater than CV 2)
0 - 255
200
6
Average speed
(must be greater than CV 2 and less than CV 5)
0 - 255
100
7
Software version
(The processor can be updated)
-
differently
8
Manufacturer identification
decoder reset, values like CV 59
different
162
12
Decoder operating mode
Bit 0=1 DC (analog operation; direct current) on
Bit 2=1 DCC data format on
Bit 4=1 AC (analog 3-rail operation; alternating current) on
Bit 5=1 Motorola® data format on
Bit 6=1 mfx® data format on
0 - 117
117
17
18
Long locomotive address
17 = Byte should be lower-case: byte
18 = Byte should be lower-case: byte
1 - 10239
192 - 231
0 - 255
1000
195
232
27
Brake signal settings (automatic stop)
Bit 0 = 1 -> ABC (Automatic Brake Control) right rail positive
Bit 1 = 1 -> ABC left rail positive
Bit 4 = 1 -> DC; opposite direction of travel
Bit 5 = 1 -> DC; same direction of travel
0 - 51
0
29
DCC standard configuration
Bit 0=0 Normal direction of travel
Bit 0=1 Opposite direction of travel
Bit 1=0 14 speed steps
Bit 1=1 28 speed steps
Bit 2=0 DCC-only mode
Bit 2=1 Automatic analog/digital recognition
Bit 3=0 RailCom® turned off
Bit 3=1 RailCom® turned on
Bit 4=0 Speed steps over CV 2, 5, and 6
Bit 4=1 Use the characteristic curve from CV 67 - 94
Bit 5=0 Short address (CV1)
Bit 5=1 Long address (CV 17/18)
0-63
14
30 Error codes for function outputs, motor, and temperature monitoring:
1 = function output fault, 2 = motor fault, 4 = overload protection
0-7
0
33-46
Simple function mapping (DCC standard RCN-225)
Assignment of the function outputs to the CVs
CV 33 Light function key (F0) during forward travel
CV 34 Light function key (F0) during reverse travel
CV 35 function key F1
CV 36 function key F2
CV 37 function key F3
CV 38 function key F4
CV 39 function key F5
CV 40 function key F6
CV 41 function key F7
CV 42 function key F8
CV 43 function key F9
CV 44 function key F10
CV 45 function key F11
CV 46 function key F12
0 - 255
1
2
4
8
16
4
8
16
32
64
16
32
64
128
156 function key
ABV off/on
0 - 68
9
157 function key shunting mode
0 - 68
8
Value
*0
1
0
*2
0
*4
Value
*1
*4
*16
*32
*64
Value
1
2
16
32
0
*8
*0
16
*0
32
Assignment of the
Fct. outputs
f0v
f0h
A1
A2
A3
A4
A5
A6
A7
-
-
-
-
-
A short circuit in the motor, lighting, pick-up wiper, or wheelsets can destroy the
decoder as well as the electronics of the model!
#56500
PIKO
multiprotocol SmartDecoder XP 5.1 PluX22
mfx® capability included
56500-90-7001_2021
PIKO Spielwaren GmbH
Lutherstr. 30
96515 Sonneberg
GERMANY
