BASIC NOTIONS
The numerical values used in the ATEQ device are coded on a Long format.
ATEQ devices are configured in Little Endian format. It means that the Least Significant Byte is sent
first on the network.
Word
A word is a 16-bit data. It is coded with two bytes (8bits):
—
The first byte is the Least Significant Byte ( LSB )
—
The second byte is the Most Significant Byte ( MSB )
Example of a word:
Reminder: “h” indicates a hexadecimal code, “(d)” indicates a decimal code.
Long format (Signed Double word)
A Long format data is coded with two words (of 16 bits).
In the memory range of the ATEQ device or when they are transmitted, both words are coming in the
following order:
—
The first word is the least significant word
—
The second word is the most significant word
—
Example of a Long format:
Address value
All address values are treated with the Long format.
Example – address of the “millibar” unit in the Unit table (see Unit table):
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