Campbell Scientific PC208 Datalogger Support Software - Manual (Page 121)

D-1
APPENDIX D. EXPRESSION ERRORS
D.1 ERROR CODES AND MESSAGES
The following error codes and messages may
occur when using expressions.
Code Error Message
100 Missing left parenthesis
101 Missing right parenthesis
102 Variable name expected
103 Number expected
104 Floating point numbers limited to 5 digits
107 Function Expected
110 New line expected
111 Equal sign expected
D.1.1 CAUSES
D.1.1.1 Variable name expected
This message occurs when the expression is
not set equal to an input location label. The
label must be to the left of the expression and
not enclosed in parentheses. An expression
that contains no equal sign causes compiler
error 202, 'unrecognized text'.
For Example:
'Variable name expected' is displayed when a
program contains any of these expressions:
5=el*(Vee+en), (lambda) = COS(theta), 10-
(zee/2)=bee.
These are correct ways of entering the above
expressions: five=el*(Vee+en), lambda =
COS(theta), bee=10-(zee/2).
D.1.1.2 Equal sign expected
An equal sign MUST immediately follow the
label of the input location that stores the results
(e.g., label = expression). An expression that
contains no equal sign causes compiler error
202, 'unrecognized text'.
For Example:
'Equal sign expected' is displayed when a
program contains any of these expressions:
zee/2=bee, data+number=volt1+volt2.
These are correct ways of entering the above
expressions: bee=zee/2, data=volt1+volt2-
number.
D.1.1.3 Floating point numbers limited to 5
digits
All fixed numbers are limited to five digits not
including negative signs and decimal points.
D.1.1.4 Number expected
Indicates one of the following situations:
(1) An expression with a /, *, or ^ operator is
missing a number or label before and/or
after the operator.
(2) An expression with a + or - operator does
not have a number or label after the
operator.
(3) An expression with an @ operator does not
have a number after the @; only a fixed
number is allowed immediately after the @
operator.
(4) An expression with an @ operator does not
have either a number or label before the @.
(5) There is nothing between a pair of
parentheses (e.g., the expression contains
this "()").
(6) A number is immediately followed by a label
or function without an operator (e.g., an
expression containing '8label' gets this error
message).
D.1.1.5 New line expected
Indicates one of the following situations:
(1) An expression contains more than one
equal sign.
(2) There is no operator between two sets of
parentheses.