User's Manual

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Get DXT Data response (serial)
If received data length from DXTs is SIZE, (SIZE/256) packets are received. Every packet is:
Status NumTotPackets Num Len Data bytes
Field Size Valid Range Description Default
Status 2 0x0001-0x0003,
0x0006 or 0x0009
Result of the command N/A
NumTotPacket 2 0-65535 Total number of packets N/A
Num 2 0-65535 Number of the current packet (the first
packet has Num = 0)
N/A
Len 1 0-255 Number of bytes to be considered in
the unstuffed Data bytes field – 1
N/A
Data
bytes
256
DXT data
bytes
N/A
In the Data bytes field could contain a certain number of DXT frames; each DXT frame is anticipated
by its MAC address (big endian).
If no DXT awakes during comm slot but it had been found during wakeup session, Status is 0x0009,
Len and NumTotPacket are equal to 0.
If DXT is awake during comm slot but it sends no data, DXT frame is 4 bytes long and these bytes are
equal to 0 (its respective data bytes will be made up of its MAC address and 4 bytes equal to 0)
Get DXT Data response (FTP) (only for C2)
Status
Field
Size
Valid
Range
Description
Default
Status 2 0x0001-0x0003,
0x0006 or 0x0009
Result of the command N/A
One file is sent to FTP server. Its name has this format:
date_hour.dat
It contains a certain number of DXT frames; each DXT frame is anticipated by its MAC address (big
endian).
If no DXT awakes during comm slot but it had been found during wakeup session, Status is 0x0009
and no file is sent to FTP server.
If DXT is awake during comm slot but it sends no data, DXT frame is 4 bytes long and these bytes are
equal to 0 (its respective bytes will be made up of its MAC address and 4 bytes equal to 0)