Data types and formats

Data takes different formats as it is created and manipulated in the data logger, as it is displayed through software, and as it is retrieved to a computer file. It is important to understand the different data types, formats and ranges, and where they are used.

See the CRBasic Editor help for additional data types and formats, and program examples: https://help.campbellsci.com/crbasic/cr6/ .

Data types, ranges and resolutions

Data type

Description

Range

Resolution

Where used
Float IEEE four-byte
floating point

+/–1.8 *10^–38 to
+/–3.4 *10^38

 24 bits
(about 7 digits)		 variables
Long four-byte
signed integer		 –2,147,483,648 to
+2,147,483,647		 1 bit variables, output
Boolean four-byte
signed integer		 –1, 0 True (–1) or
False ( 0)		 variables,
sample output
String ASCII String     variables,
sample output
IEEE4 IEEE four-byte
floating point

+/–1.8 *10^–38 to
+/–3.4 *10^38

 24 bits
(about 7 digits)		 internal calculations,
output
IEEE8 IEEE eight-byte
floating point

+/–2.23 *10^–308 to
+/–1.8 *10^308

 53 bits
(about 16 digits)		 internal calculations,
output
FP2 Campbell Scientific
two-byte floating point		 –7999 to +7999 13 bits
(about 4 digits)		 output
NSEC eight-byte time stamp   nanoseconds variables, output