Campbell-scientific CR800 and CR850 Measurement and Control Systems Manual de usuario descargar pdf (Pagina 125)

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Section 7. Installation

125

CRBasicExample13. Foreign‐LanguageSupport

‘Declare a constant to concatenate six non-English characters

Const PTempUnits = CHR(HexToDec ("C9"))+ CHR(HexToDec ("E3"))+ CHR(HexToDec("CA")) _

+ CHR(HexToDec ("CF")) + CHR(HexToDec("B6")) + CHR(HexToDec ("C8"))

‘Declare a constant to concatenate four non-English characters

Const PTempAlias = CHR(HexToDec ("CE"))+ CHR(HexToDec ("C2")) + CHR(HexToDec("B6")) _

+ CHR(HexToDec ("C8"))

‘Declare as Alias and Units non-English words concatenated above

Alias PTemp = PTempAlias

Units PTemp = PTempUnits



7.7.3.5 Declared Sequences

Declaration sequences include DataTable() / EndTable and Sub() / EndSub.

Certain sequences that may be incidental to a specific application also need to be

declared. These include ShutDown / ShutdownEnd, DialSequence() /

EndDialSequence, ModemHangup() / EndModemHangup, and

WebPageBegin() / WebPageEnd sequences. Declaration sequences can be

located:

1. prior to BeginProg

2. after EndSequence or an infinite Scan() / NextScan and before EndProg or

SlowSequence

3. immediately following SlowSequence. SlowSequence code starts executing

after any declaration sequence. Only declaration sequences can occur after

EndSequence and before SlowSequence or EndProg.

7.7.3.5.1 Data Tables

Data are stored in tables as directed by the CRBasic program. A data table is

created by a series of CRBasic instructions entered after variable declarations but

before the BeginProg instruction. These instructions include:

DataTable()

'Output Trigger Condition(s)

'Output Processing Instructions

EndTable

A data table is essentially a file that resides in CR800 memory. The file is written

to each time data are directed to that file. The trigger that initiates data storage is

tripped either by the CR800's clock, or by an event, such as a high temperature.

Up to 30 data tables can be created by the program. The data tables may store

individual measurements, individual calculated values, or summary data such as

averages, maxima, or minima to data tables.

Each data table is associated with overhead information that becomes part of the

ASCII file header (first few lines of the file) when data are downloaded to a PC.

Overhead information includes:

• table format

• datalogger type and operating system version,

1 2 ... 120 121 122 123 124 125 126 127 128 129 130 ... 565 566

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Campbell-scientific CR800 and CR850 Measurement and Control Systems Manual de usuario Pagina 125

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