How the Out put On/Off sta te is de ter min ed,
using pri ma ry and se con da ry ad dress com mands:
The pri ma ry and se con da ry ad dress functions are pro gram med se pa ra te ly, and
the out put in for ma ti on is sto red in the functi on map ping table.
Af ter Po wer-on, that is, af ter a po wer loss of 1 sec mi ni mum a se con da ry ad dress
com mand is awai ted ( pro vi ded the se con da ry ad dress is ot her than 0) and the out -
puts are set ac cor ding ly.
The pri ma ry and se con da ry ad dress com mands may be pro gram med with dif fe -
rent va lu es for the same out puts. Sin ce the Zimo com mand sta ti on keeps sen ding
out all com mands sent pre vi ous ly, an un de si red con ti nu ous on/off swit ching of an
out put ha ving op po si te va lu es in the pri ma ry and se con da ry ad dress com mands is
the re sult. To pre vent this from hap pe ning a pri ma ry com mand is not exe cu ted, un -
less its va lue is dif fe rent from the pre vi ous pri ma ry com mand re cei ved.
Furt her, the “last com mand re cei ved is the one exe cu ted” prin ci ple ap plies to con -
se cu ti ve ly re cei ved pri ma ry or se con da ry ad dres ses.
The re sults of the pri ma ry and se con da ry ad dress com mands are then com bi ned
with the lo ca ti on de pen dent functi on con trol, pro vi ded functi on bits are pre sent in a
sec ti on of track. Such functi on bits are sent to track sec tions by the MX9 track sec ti -
on mo du le. By de fault, the lo ca ti on de pen dent functi on bit 0 in flu en ces the functi on
F0, functi on bit 1 in flu en ces functi on F1 and so on. The as signment of functi on bits
to functi on out puts can also be mo di fied with the help of functi on map ping , CV’s
#78-86.
The di rect com mands (re sult of pri ma ry and se con da ry ad dress com mands) and
the lo ca ti on de pen dent functi on con trol is an “or” com bi na ti on by de fault, that is, a
functi on is tur ned on if eit her the di rect com mand calls for it or the ne ces sa ry
functi on bit in a track sec ti on is set.
The com bi na tions can be chan ged with the help of bit 6 and 7 of CV #112 to “and”
or “not-and”. “And” turns a functi on on if a di rect com mand calls for it and a
functi on bit is set in a cor re spon ding track sec ti on. “Not-and” al lows the lo ca ti on
de pen dent functi on con trol to turn a functi on off, con tra ry to a cur rent di rect com -
mand.
“ On the fly ” Pro gram ming
This pro gram ming me thod is also known as ope ra tions, or ops mode, pro gram -
ming. Con fi gu ra ti on va ria bles may be chan ged not only on the pro gram ming
track but on the lay out, wit hout af fec ting ot her trains.
Function Decoder MX68
Page 5
(7) (6) 5 4 3 2 1 0
light
Rear
light
Front
Function outputs
1 (L) front
1 (L) rear
2 (LL)
4 (Z1)
2 (LL)
3 (Z)
5 (Z2)
6 (Z3)
# 33
# 34
# 35
# 36
# 33
CV
Function key
on ZIMO cab
(7) (6) 5 4 3 2 1 0
(7) (6) 5 4 3 2 1 0
(7) (6) 5 4 3 2 1 0
NMRA function mapping
An example below: Set the CV’S as shown if the headlights should be
switched individually with keys F0 and F1 (L and LL) and the third ouput
with key F2 (3, Z): CV #33 =1, #34 = 1, #35 = 2, #36 = 4.
F0
F3
F1
F2
F4
F5
F0
(7) 6 5 4 ( 3) 2 1 0
1 (L) front
1 (L) rear
2 (LL)
2 (LL)
3 (Z)
# 33
# 34
# 35
# 36
# 33
(7) 6 5 4 (3) 2 1 0
(7) 6 5 4 (3) 2 1 0
(7) 6 5 4 (3) 2 1 0
F0
F1
F2
F0
The table above shows the default settings; key F0 (1,L) switches front and
rear headlights according to direction of travel. Key F1(2.LL) switches the third
output, key F2 (3,Z) the fourth, etc. 0 is entered in all four Cv’s which is identical
to :
CV #33 = 1; #34 = 2; #35 = 4, #36 = 8, #37 = 4, #38 = 8, #39 = 16, #40 = 32
# 37
# 38
# 39
F6
# 40 7
3 2 1 0
3 2 1 0
4 3 2 1 0
5 4 3 2 1 0
F7
# 41 8
3 2 1 0
Eight
output
Key numbers in parenthesis are for Zimo cabs.
The Configuration Variables CV # 33 to # 41 refer to the cab keys,
the single bits to the function outputs. By selecting the appropriate
bits, function keys can be assigned to operate specific outputs.
Several outputs may be assigned to one key.