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10 program access to data tables, Table 21. abbreviations of names of data processes – Campbell Scientific CR1000 Measurement and Control System User Manual

Page 148

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Section 7. Installation

148 

 

 

'Program

BeginProg

Scan

(1,Sec,0,0)

'Assign strings to String variables

Wrd(1) = " ":Wrd(2) = "Good":Wrd(3) = "morning":Wrd(4) = "Don't"
Wrd(5) = "do":Wrd(6) = "that":Wrd(7) = ",":Wrd(8) = "Dave"

'Assign integers to Long variables

PhraseNum(1) = 1:PhraseNum(2) = 2

'Concatenate string "1 Good morning, Dave"

Phrase(1) = PhraseNum(1)+Wrd(1)&Wrd(2)&Wrd(1)&Wrd(3)&Wrd(7)&Wrd(1)&Wrd(8)

'Concatenate string "2 Don't do that, Dave"

Phrase(2) = PhraseNum(2)+Wrd(1)&Wrd(4)&Wrd(1)&Wrd(5)&Wrd(1)&Wrd(6)&Wrd(7)&Wrd(1)&Wrd(8)

CallTable

Test

NextScan

EndProg

 

7.7.3.10 Program Access to Data Tables

A data table is a memory location wherein data records are stored. Sometimes,
the stored data needs to be used in the CRBasic program. For example, a program
can be written to retrieve the average temperature of the last five days for further
processing. CRBasic has syntax provisions facilitating access to these table data,
or to meta data relating to the data table. Except when using the GetRecord()
instruction (Data Table Access and Management

(p. 517)

), the syntax is entered

directly into the CRBasic program through a variable name. The general form is:

TableName.FieldName_Prc(Fieldname Index, Records Back)

Where:

TableName is the name of the data table.
FieldName is the name of the variable from which the processed value is

derived.

Prc is the abbreviation of the name of the data process used. See table

Abbreviations of Names of Data Processes

(p. 148)

for a complete list of these

abbreviations. This is not needed for values from Status or Public tables.

Fieldname Index is the array element number in fields that are arrays

(optional).

Records Back is how far back into the table to go to get the value (optional).

If left blank, the most recent record is acquired.

Table 21. Abbreviations of Names of Data

Processes

Abbreviation Process

Name

Tot

Totalize

Avg

Average