Table 11. Data Types in Variable Memory
Name Command Description
Word Size
(Bytes)
Notes Resolution / Range
String
As String
ASCII string
Minimum: 3
(4 with null
terminator)
Default: 24
Maximum:
limited only
to the size of
available
CR1000
memory.
See caution.
1
String size is defined by the CR1000
operating system and CRBasic
program.
When converting from STRING to
FLOAT, numerics at the beginning
of a string convert, but conversion
stops when a non-numeric is
encountered. If the string begins with
a non-numeric, the FLOAT will be
NAN. If the string contains multiple
numeric values separated by non-
numeric characters, the SplitStr()
instruction can be used to parse out
the numeric values. See the sections
String Operations
(p. 282) and Serial
I/O
(p. 245).
Unless declared otherwise, string size is 24
bytes or characters. String size is allocated
in multiples of four bytes; for example,
String * 25, String * 26, String * 27, and
String * 28 allocate 28 bytes (27 usable).
Minimum string size is 4 (3 usable). See
CRBasic Editor Help for more information.
Maximum length is limited only by
available CR1000 memory.
1
CAUTION When using a very long string in a variable declared Public, the operations of datalogger support software (p. 654) will frequently transmit
the entire string over the communication link. If communication bandwidth is limited, or if communications are paid for by they byte, declaring the
variable Dim may be preferred.
Table 12. Data Types in Final-Data Memory
Name Argument Description
Word Size
(Bytes)
Notes Resolution / Range
FP2
FP2
Campbell Scientific
floating point
2
Default final-memory data type. Use
FP2 for stored data requiring 3 or 4
significant digits. If more significant
digits are needed, use IEEE4 or an
offset.
Zero Minimum Maximum
0.000 ±0.001 ±7999.
Absolute
Value
Decimal Location
0 – 7.999 X.XXX
8 – 79.99 XX.XX
80 – 799.9 XXX.X
800 – 7999. XXXX.
IEEE4
IEEE4 or
Float
IEEE floating point 4 IEEE Standard 754
±1.4E–45 to ±3.4E38
Long
Long
Signed integer 4
Use to store count data in the range of
±2,147,483,648
Speed: integer math is faster than
floating point math.
Resolution: 32 bits. Compare to 24
bits in IEEE4.
Suitable for storing whole numbers,
counting number, and integers in
final-data memory. If storing non-
integers, the fractional portion of the
value is lost.
–2,147,483,648 to +2,147,483,647
131
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