Page 28 Non-Sound Decoder MX618 - MX638 and Sound Decoder MX640 - MX659
ATTENTION: only sound decoders have 17 CV groups for the swiss mapping.
Non-sound decoders: MX618, MX633 and MX634 have 13 CV groups (CV430-CV507) and the other
decoder types have 8 CV groups (CV430 - CV477).
CV
Denomination
Range
Default
Description
#430
Swiss Mapping Group 1
“F-Key”
0 - 28,
29
(for F0),
129 - 157
0
The key defined here shall turn on the function outputs
listed under
A1 (forward or reverse) and
A2 (forward or reverse).
1
– 28 for function keys F1 – F28, F29 is for F0.
Bit 7 = 1: Inverts the F-key function.
#431
Swiss Mapping Group 1
“M-Key”
or
Special high-beam
setting
(from SW version 34)
Bit 0 - 6:
0 - 28,
29
(for F0)
and
Bit 7
or 255
0
The “normal function mapping” for the “M-key” defined
here will be deactivated (that is the relevant outputs,
such as the head
lights for example) when the “F-key”
is switched on.
Bit 7 = 1: additionally, the outputs listed under A1 and
A2 should only switch ON if the F and M key is ON.
Bit 6 = 1: The M-key outputs shall not be turned OFF
if
the F-key is ON and driving forward.
Bit = 5: The M-key outputs shall not be turned OFF if
the F-key is ON and driving backwards.
=
157
: is an often used value for CV #431, because
F0 (= 29) is usually selected as the “M-key” with
Bit 7 = 1. F0 then acts as a general ON/OFF key.
= 255 (Special
high-beam
setting!): the Fu-Outputs
defined in the following four CVs are switched to full
intensity, provided that they are controlled via the
"normal function mapping", and dimmed with CV # 60;
this function is used, for example, to switch the
headlights of a Swiss locomotive to high-beam,
without switching the white taillight to high-beam.
Depending on CV #399 setting (see also below): High
beam is only switched on if the speed is higher than
the value given in this CV (in 255 speed step mode).
#432
Swiss Mapping Group 1
“A1” forward
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
0
Bits 0…3:
Function output to be switched ON in forward direction
provided that both the
“F” and “M” keys are ON (if Bit
#
7 for the “M” key CV is = 1, otherwise “F” key ON is
sufficient) .
Bits 7, 6, 5 (7 possible values or zero):
Number of the applicable dimming CV. For example:
Bit 5 = 1 means dimming according to CV #508 etc.
#433
Swiss Mapping Group 1
“A2” forward
Bits
0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
0
Bits 0…3:
Additional function output to be switched ON in for-
ward direction provided that both the
“F” and “M” keys
are ON (if Bit #7 for the “M” key CV is = 1, otherwise
“F” key ON is sufficient) .
Bits 7, 6, 5 (7 possible values or zero):
Number of the applicable dimming CV. For example:
Bit 5 = 1 means dimming according to CV #508 etc.
#434
Swiss Mapping Group 1
“A1” reverse
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
0
Bits 0…3:
Function output to be switched ON in forward direction
provided that both the
“F” and “M” keys are ON (if Bit
#7 for the “M” key CV is = 1, otherwise “F” key ON is
sufficient) .
Bits 7, 6, 5 (7 possible values or zero):
Number of the applicable dimming CV. For example:
Bit 5 = 1 means dimming according to CV #508 etc.
#435
Swiss Mapping Group 1
“A2” reverse
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
0
Bits 0…3:
Additional function output to be switched ON in for-
ward direction provided that both the
“F” and “M” keys
are ON (if Bit #7 for the “M” key CV is = 1, otherwise
“F” key ON is sufficient) .
Bits 7, 6, 5 (7 possible values or zero):
Number of the applicable dimming CV. For example:
Bit 5 = 1 means dimming according to CV #508 etc.
#436 -
441
. . .
Group 2
.
. . .
0
All 6 CV’s of Group 2 are defined the same way is the
6 CV’s in group 1.
#442 -
447
. . .
Group 3
.
. . .
0
All 6 CV’s of the following groups are defined the
same way is the 6 CV’s in group 1.
#448 -
453
. . .
Group 4
.
. . .
0
. . .
#454 -
459
. . .
Group 5
.
. . .
0
. . .
#460 -
465
. . .
Group 6
.
. . .
0
. . .
#466 -
471
. . .
Group 7
.
. . .
0
. . .
#472 -
477
. . .
Group 8
.
. . .
0
. . .
#478 -
483
. . .
Group 9
.
. . .
0
. . .
#484 -
489
. . .
Group 10
. . .
0
. . .
#490 -
495
. . .
Group 11
.
. . .
0
. . .
(Groups 11, 12, 13 with SW version 34 or higher)
#496 -
501
. . .
Group 12
.
. . .
0
. . .
#502 -
507
. . .
Group 13
.
. . .
0
. . .
#800
- #805
. . .
Group 14
.
. . .
0
. . .
(Groups 14, 15, 16, and 17 with SW version 35.27
or higher)
#806
- #811
. . .
Group 15
.
. . .
0
. . .
