Glossary - Roco multiZENTRALEPRO Manuel

the isolated section of track within the terminal loop is longer than the longest train which is going to travel through
the terminal loop. The power supply to the terminal loop is connected to the output of the terminal loop module
which provides the power supply for the terminal loop. The module itself is connected either to a track outside the
terminal loop or directly to the multiZENTRALE
The terminal loop module functions as follows: A train enters the terminal loop – the direction is not important – and
the polarity of the tracks before and within the terminal loop is not identical. There is then a short circuit within the
module which the module immediately detects. The module then reverses the polarity in the terminal loop before
the short circuit detection function of the multiZENTRALE
loop polarity is then corrected for the entry of the train. The reverse of polarity in the terminal loop does of course
render the polarity incorrect for the train's exit from the loop. This procedure or reversing the polarity is therefore
repeated when the train exits. Since in digital operation the polarity of the tracks do not determine the direction
of travel of the train; the train can pass through the terminal loop without stopping or without your intervention.
In order for the terminal module to detect incorrect polarity in time, you have to set its sensitivity using the poten-
tiometer visible on the side. See the terminal loop module's instructions for use.

5.7 Glossary

� Bits and Bytes
The terms bits and bytes were used during the early days of computing and is still encountered with digital model
railways. Decimal numbers are not part of the computer world. A new number system was developed, the binary
system. This system has only two numbers, 0 and 1. These two numbers also represent switching states. The 1 means
switched, enabled, or activated; 0 means not switched, disabled, or deactivated.
One bit consists of 0 and 1; eight bits are combined to one byte. The bits combined into one byte are numbered from
0 (bit 0) to 7 (bit 7). A certain value is assigned to each bit position.
Bit 7
Value 128
If these values are added up, a max. value of 255 per byte (with each bit activated, i.e. set to 1) is derived, which
returns us to the decimal system. The min. value is 0, all bits are set to 0.
ROCO has significantly simplified programming individual bits in the multiMAUS
you no longer need to calculate certain values but simply select whether to set or not to set a bit in the "PROGRAM"
menu.
Numerous published articles provide additional or in–depth knowledge about this topic.
� CVs
All values which affect the behaviour of the locomotive decoder – and ultimately the behaviour of the locomotive –
are stored in what are referred to as CVs. CV is the abbreviation for configuration variables. Since the multiMAUS
and the multiZENTRALE are compatible with the NMRA/DCC standard, CVs between 1 and 1023 can be read and
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written.
CVs range from "0" to "255". This shows that reprogramming requires experience, as incorrectly set CVs may have
an adverse effect on the performance of the decoder.
� Decoder
In order to make the digital control signals of the multiMAUS
technology, you require a "translator" – the decoder. It does not replace any of the components in the analogue
.
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detects anything or the train slows down. The terminal
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6 5 4
64 32 16
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3 2
8 4
. If supported by the decoder,
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and multiZENTRALE accessible to „conventional"
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1 0
2 1
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85