Model Railway Control Unit
WWW.Z21.EU
56
CV Description Range Default
#1 First decoder address, lower 6 bits (bits 0 - 5)
Together with CV #9, this generates the rst decoder address for outputs 1 to 4.
This CV can only be read. You can change the decoder addresses via the programming
button. See section Option 1 – Program address. This can be carried out even more con-
veniently using the Z21 per LINK.
INFORMATION: Please ensure that the decoder address is never confused with the re-
sulting signal addresses. The signal addresses and CV values can be calculated from the
decoder address, but the process is rather complicated and is described in more detail in
the RailCommunity standards RCN-213 and RCN-225.
1 – 63
read only
1
#7 Manufacturer rmware version number read only Ω 110
#8 Manufacturer identication
Writing the value 8 resets all CVs to the factory settings.
8 161
#9 Decoder address, upper 3 bits (bits 6 - 8)
Together with CV #1, this generates the decoder address.
This CV can only be read. You can change the decoder addresses via the programming
button, see section Option 1 – Program address. This can be carried out even more conve-
niently using the Z21 per LINK.
0 – 7
read only
0
#28 RailCom
®
conguration
Bit 1 = enable RailCom
®
channel 2 (decimal value 2)
INFORMATION: RailCom
®
channel 2 is required for POM reading.
0, 2 2
#29 Decoder conguration
Bit 3 = RailCom
®
activation:
0 = Deactivated (decimal value 0)
1 = Activated (decimal value 8)
INFORMATION: RailCom
®
is required for POM reading.
Bit 7 = actuation type:
1 = Actuation as accessory decoder
(decimal value 128, cannot be changed)
128, 136 136
#39 DCC addressing mode
Assignment of the signal addresses to decoder address and output.
0 = backwards-compatible with ROCO control centres
Z21, multiZENTRALEpro and multiMAUS with booster
1 = DCC addressing mode conforms to RCN-213
See also section Operation on control centres from other manufacturers.
TIP: This setting is recommended when using control centres from other manufacturers.
0, 1 0
#40 Number of signals
Determines the number of signals which can be connected to the signal decoder. See also
section Light signals.
Factory setting: 2 signals
2, 3, 4 2
#41 Signal-ID for signal 1
When this CV is written, one of the predened signal congurations is selected.
You can nd more information on the available signal congurations in Appendix B – Si-
gnal congurations.
Factory setting: Signal-ID 71 (0x47) “Universal”
0 - 255 71
6.3.3 CV list