Campbell Scientific CR6 CR6 Measurement and Control System - Page 133

Multiple Statements on One Line

Page 133 highlights

Section 7. Installation 'Begin Program BeginProg 'Set scan interval Scan(1,Sec,3,0) 'Measurements PanelTemp(RefTemp,250) TCDiff(TC()...Offset) 'Processing (None in this 'example) Measure Scan loop 'Call data table CallTable Temp 'Controls (None in this 'example) 'Loop to next scan NextScan 'End Program EndProg Call data table 7.8.3.3 Command Line CRBasic programs are made up of a series of statements. Each statement normally occupies one line of text in the program file. Statements are made up of instructions, variables, constants, expressions, or a combination of these. "Instructions" are CRBasic commands. Normally, only one instruction is included in a statement. However, some instructions, such as If and Then, are allowed to be included in the same statement. Lists of instructions and expression operators can be found in the CRBasic Programming Instructions (p. 515) section. A full treatment of each instruction and operator is located in the Help files of CRBasic Editor, which is included with LoggerNet, PC400, and RTDAQ datalogger support software suites. 7.8.3.3.1 Multiple Statements on One Line Multiple short statements can be placed on a single text line if they are separated by a colon (:). This is a convenient feature in some programs. However, in general, programs that confine text lines to single statements are easier for humans to read. In most cases, regarding statements separated by : as being separate lines is safe. However, in the case of an implied EndIf, CRBasic behaves in what may be an unexpected manner. In the case of an If...Then...Else...EndIf statement, where the EndIf is only implied, it is implied after the last statement on the line. For example: If A then B : C : D does not mean: 133

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Section 7.
Installation
'Begin Program
BeginProg
'Set scan interval
Scan
(1,Sec,3,0)
'Measurements
PanelTemp
(RefTemp,250)
TCDiff
(TC()...Offset)
Measure
'Processing (None in this
'example)
Scan loop
'Call data table
CallTable
Temp
Call data table
'Controls (None in this
'example)
'Loop to next scan
NextScan
'End Program
EndProg
7.8.3.3 Command Line
CRBasic programs are made up of a series of statements.
Each statement
normally occupies one line of text in the program file.
Statements are made up of
instructions, variables, constants, expressions, or a combination of these.
"Instructions" are CRBasic commands.
Normally, only one instruction is
included in a statement.
However, some instructions, such as
If
and
Then
, are
allowed to be included in the same statement.
Lists of instructions and expression operators can be found in the
CRBasic
Programming Instructions
(p. 515)
section.
A full treatment of each instruction and
operator is located in the
Help
files of
CRBasic Editor
, which is included with
LoggerNet
,
PC400
, and
RTDAQ
datalogger support software suites.
7.8.3.3.1 Multiple Statements on One Line
Multiple short statements can be placed on a single text line if they are separated
by a colon (
:
).
This is a convenient feature in some programs.
However, in
general, programs that confine text lines to single statements are easier for
humans to read.
In most cases, regarding statements separated by
:
as being separate lines is safe.
However, in the case of an implied
EndIf
, CRBasic behaves in what may be an
unexpected manner.
In the case of an
If...Then...Else...EndIf
statement, where
the
EndIf
is only implied, it is implied after the last statement on the line.
For
example:
If
A
then
B
:
C
:
D
does not mean:
133