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C.2 ORBIT Frames description
Command frame format
Break
Break :
The break condition of RS485 line (at least 11 bits @ 0)
Function code :
See following table for supported Orbit functions
Address field :
The slave number (ASCII 1..247, 0 = reserved for broadcast)
Data :
0..n bytes
Normal response frame format
Function code (1 byte)
Exception response frame format
"!" (ASCII 0x21)
Broadcast answer frame format
If the master issues a broadcast command, it doesn't expect an answer. The only exception is the Notify command "N" (see next page).
Function code (1 byte)
Data (n bytes)
Exception code (1 byte)
Address field (1 byte)
Data (0..n bytes)
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