Page 26 Non-Sound Decoder MX618 - MX634 and Sound Decoder MX640 - MX648
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).
Swiss Mapping Group 1
“A1” forward
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
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.
Swiss Mapping Group 1
“A2” forward
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
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.
Swiss Mapping Group 1
“A1” reverse
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
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.
Swiss Mapping Group 1
“A2” reverse
Bits 0…3:
1 - 12
14 (FO0f)
15 (FO0r)
Bits 5…7:
0 - 7
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.
All 6 CV’s of Group 2 are defined the same way is the
6 CV’s in group 1.
All 6 CV’s of the following groups are defined the
same way is the 6 CV’s in group 1.
. . . (Groups 11, 12, 13 with SW version 34 or higher)
. . . (Groups 14, 15, 16, and 17 with SW version 35.27
or higher)
Dimming values for
“Swiss Mapping”
(0- 31)*8
(only Bits
7…3 are
used)
Each group CV (i.e. #432, 433, 434, 435) can be
linked with one of these five dimming CV’s. The value
to enter is the dimming value (0 – 31) times the func-
tion output number (I.e. dimming value = 16 for func-
tion output 6: 16 x 6 = 96 is the value to enter).
This will dim the relevant function outputs accordingly.
Usable only with function outputs FO0 to FO8.
Speed dependent
headlights
(Rule 17)
In conjunction with the “Swiss Mapping” special “high-
beam” setting, see CV #431 = 255; applies to each of
the 13 CV groups (CV #437, 443..):
Switches to high-beam only when the speed exceeds
the value in this CV; based on the decoder internal
255 speed steps.
EXAMPLE:
= 0: High-beam at any speed (incl. stand-still), con-
trolled only by the F-key (i.e. as per CV #430).
=1: High-beam only while driving (not at stand-still),
provided the defined F-key is ON.
= 128: Switches to high-beam when reaching medium
speed.
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