ADLINK ND-6067 - Manual (Page 256)

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8
Analog modules Data Format
Unit Conversion
The data value in the command of the analog module is
corresponding to the amplitude of the physical analog signal.
The user should understand the data format to represent a
analog signal by an ASCII string.The physical meaning of a data
depends on both the unit conversion and the value. The unit
conversion of the digits value can be configured by the setting
configuration command. Three types of unit conversion are used
in analog modules.
1. Engineering
units.
2. Percent of FSR (Full Scale Range).
3. Hexadecimal or Two’s Complement Hexadecimal.
4. Ohm(For
ND-6013)
8.1 Engineering Units
• Set bit 1 and bit 0 of data format variable to “00” means the
data is represented in engineering units
• This data format including three components
1. sign (+ or -,if range is bipolar.)
2. digits
3. decimal point