Campbell Scientific CR9000X Measurement and Control System - Manual (Page 407)

Appendix A. Keywords and Predefined
Constants
Several words are reserved for use by CRBASIC. These words are not case sensitive and
cannot be used as variable or table names in a program. Predefined constants include
some instruction names, as well as valid alphanumeric names for instruction parameters.
In general, instruction names should not be used as variable, constant, or table names in a
datalogger program, even if they are not specifically listed as a predefined constant.
If a user programmed variable happens to be a keyword or predefined constant, a runtime
or compile error will occur. To correct the error, simply change the variable name by
adding or deleting one or more letters, numbers, or the underscore (_) from the variable
name, then recompile and resend the program.
The following is a list of keywords and predefined constants in CRBasic. It is possible to
use a keyword as part of a variable name if there are additional letters preceding or
following the letters that make up the keyword.
AbortScan program control
ABS function
ACOS
function
Alias declaration
AM25T measurement
AngleDegrees declaration
AO4 measurement
AND operator
ASCII_ function
ASIN function
As declaration
ATN function
ATN2 function
AVE function
Average output
processing
AvgRun processing
AvgSpa processing
Battery measurement
BeginBurstTrigger program control
BeginProg
program control
BiasComp CSI Calibration
Boolean = 17, predefined constant
Break program control
BrFull measurement
BrFull6W measurement
BrHalf measurement
BrHalf3W measurement
BrHalf4W measurement
CalFile
program control
Calibrate calibration
Call program control
CallTable program control
CanBus measurement
CardFlush program control
CardOut output processing
Case program control
Ceil function
CD16AC
measurement
Checksum function
CheckPort function
CHR function
ClockChange function
ClockSet
program control
Const declaration
ConstTable declaration
COS function
COSH function
ContinueScan program control
Covariance output processing
COVSpa processing
CR1000 predefined constant
CR3000 predefined constant
CR5000 predefined constant
CR800 predefined constant
CR9000X predefined constant
CRD program control
CS150 measurement
CS7500 measurement
CSAT3 measurement
CSAT3A measurement
CSGN function
Data processing
A-1