The Zimo "Input-Mapping" Sw Versions 34 And Up, Also For Outputs Via Susi; Dimming, Low Beam And Direction Bits - ZIMO MX695 Instruction Manual

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The ZIMO "Input-Mapping"
5.18
SW versions 34 and up, also for outputs via SUSI
The NMRA function mapping limitations (only 8 functions to select from per function key) can be
overcome with the ZIMO "input mapping". In addition, the function keys (= external functions)
can quickly be adapted to the wishes of the operator and that for both, function outputs and
sound functions, without the need of changing internally mapped functions and especially
without changes to the sound projects:
CV Designation Range
Input-Mapping
for internal
0,
F0
1 - 28, 29
#400
30 – 187.
that is, which function
254, 255
key switches the inter-
nal function F0?
#401 Input-Mapping
0,
1 - 28,
- for internal
29,
F1 ... F28
#428
30 - 255
5.19

Dimming, Low beam and Direction Bits

Some things connected to function outputs may not always be operated with full track voltage,
as is the case for example with 18V bulbs and a track voltage of 24V (quite common on large
scale model railroads). Other times you simply want to reduce the brightness of the headlights.
The best solution in such cases is to connect the positive side of such devices to the low volt-
age supply of the decoder (see chapter "Installation and wiring"). These outputs are fully stabi-
lized so the voltage does not fluctuate with changes in track voltage.
Alternatively or in addition to this, the PWM voltage reduction is also available with
which defines the PWM duty cycle (Pulse With Modulation; the dimming is not only effective
when a consumer is connected to the positive terminal with full track voltage, but also relative
CV's #400 ... 428
Default Description
= 0: Key F0
(that is, F0 received from the DCC-packet) is
forwarded to the internal (decoder) F0 (1:1).
= 1: Key F1 forwarded to the internal F0.
.....
= 28: Key F28 forwarded to the internal F0.
= 29: Key F0 forwarded to the internal F0.
= 30: Key F1 to F0, only in forward direction.
.....
= 57: Key F28 to F0, only in forward direction.
0
= 58: Key F0 to F0, only in forward direction.
= 59: Taste F1 to F0, only in reverse direction.
.....
= 86: Key F28 to F0, only in reverse direction.
= 87: Key F0 to F0, only in reverse direction.
= 101: Key F1-inverted to internal F0
.....
= 187: Key F0- inverted from int. F0, in reverse dir.
= 254: Directions Bit to internal F0, in forward dir.
= 255: Directions Bit to internal F0, in reverse dir.
Same as input mapping above, but:
0 CV #401 = 0: Key F1 to internal F1
= 1: Key F1 to internal F1 and so on.
CV #60,
Large-scale Decoder & Sound Decoder MX695/6/7/9
to a low-voltage function output). Of course, this kind of voltage reduction is also interesting
because it is easy to change at any time by changing the value in CV #60.

ATTENTION: Bulbs with voltage ratings as low as 12V can be dimmed with this PWM dimming
function without damage even if track voltages are considerably higher; but not bulbs rated be-
low that such as 5V or 1.2V bulbs. These must be connected to one of the decoder's low-voltage
supply pins instead of a "normal" positive pin (see chapter "Installation and Wiring").

LED's, on the other hand, always require a series resistor; if however, the resistor is designed to
operate at 5 V, the PWM dimming is also sufficient at a track voltage of 25V (in this case the set-
ting would be CV #60 = 50, so a reduction by one fifth, 1/5th).
CV #60 affects all function outputs but specific outputs can be excluded from the dimming
function using the dim mask CV's (see table).
CV Designation Range
Reduced function
output voltage
(Dimming).
#60 0 - 255
Affects all
function outputs.
Dim mask 1
=
Excludes certain func-
tion outputs from dim-
ming per
Bits
#114
CV # 60
0 - 7
For higher function
outputs go to
CV #152
Dim Mask 2
(Excludes specific func-
Bits
tion outputs from dim-
0 - 5
ming as per CV #60)
#152
and
Continuation of
CV #114
and
Bit 6,
FO3, FO4 as direction
Bit 7
bit mapping
Default Description
Reduction of effective voltage on the function out-
puts per PWM (pulse width modulation); Useful to
dim headlights for instance
0
EXAMPLE VALUES:
CV # 60 = 0: (equivalent to 255) full voltage
CV # 60 = 170 2/3 of brightness
CV # 60 = 204: 80% brightness
Enter function outputs that are not to be dimmed as
per CV #60. These outputs will receive the full volt-
age from the pin they are connected to that is, either
full track voltage or low voltage from a low-voltage
pin.
Bit 0 - front headlight,
Bit 1 - rear headlight,
Bit 2 - function output FO1, Bit 3 - FO2,
Bit 4 - function output FO3, Bit 5 - FO4
0
Bit 6 - function output FO5, Bit 7 - FO6
Respective Bit = 0: Output will be dimmed to the
value defined in CV #60.
Respective Bit = 1: Output will not be dimmed.
EXAMPLE:
CV #114 = 60: FO1, FO2, FO3 and FO4 will not be
dimmed; front and rear headlights will be dimmed
according to CV #60.
... Continuation of CV #114.
Bit 0 - function output FO7,
Bit 1 - function output FO8,
Bit 2 - function output FO9,
Bit 3 - function output FO10,
0
Bit 4 - function output FO11,
Bit 5 - function output FO12.
Bit 6 = 0: „normal"
= 1: Direction bit mapped to FO3 and FO4 that
is, FO3 is switched on when driving in reverse
0 and FO4 when driving forward (normal
mapping for FO3 and FO4 is invalid when this
Bit is set).
Bit 7 = 1: "Direction bit" for FO9 active in Fwd direc.