Short (One Byte) Versus Extended (Two Byte) Addressing - Sprog S-Nano User Manual

S-nano dcc booster interface
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S-Nano User Guide
In this example, a loco with address 997 is running in reverse at speed step
29 and a loco with address 54 is running forwards at speed step 84
When you use a function button on a throttle, you will see an extra slot
occupied momentarily with the address of the loco on that throttle and speed
0. This indicates that the function command is being sent to the loco. To allow
for errors in reception, function commands are repeated three times. After the
third copy is sent, the slot will be cleared.

Short (one byte) Versus Extended (two byte) Addressing

The DCC specification allows two forms of loco address:
 Short addresses in the range 1 – 127
 Extended addresses in the range 1 – 10239
Most DCC system impose their own arbitrary limits on these address ranges.
In SPROG Command Station mode the allowable address ranges are:
 Short addresses TBD...
 Long addresses TBD...
Version 1.0 Oct 2012
© Copyright 2012 SPROG DCC
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