Campbell CR800 Especificações descarregar pdf (Página 246)

Section 9. Program Control Instructions

Alternatively, the same thing can be accomplished by incorporating the range

test in the Do...Loop as follows:

Dim Reply 'Declare variable.

Reply = Volt(1)

Loop Until Reply > 1 And Reply < 9

The next example show the use of Wend.

While X > Y 'Old fashioned way of looping.

.........

Wend

Do While X > Y 'Much better

.........

Loop

FileManage

The FileManage instruction is used to manage files from within a running

datalogger program.

Syntax

FileManage( "Device: FileName", Attribute )

Remarks

FileManage is a function that allows the active datalogger program to

manipulate program files that are stored in the datalogger.

The FileManage instruction has the following parameters:

Parameter

& Data Type

Enter

Device;

Filename

Text

The "Device:Filename" argument is the file that should be manipulated. The

Device on which the file is stored must be specified and the entire string

must be enclosed in quotation marks. Device = CPU, the file is stored in

datalogger memory. Device = CRD, the file is stored on a PCMCIA card..

Attribute

Constant

The Attribute is a numeric code to determine what should happen to the file

affected by the FileManage instruction. The Attribute codes are actually a

bit field. The codes are as follows:

Bit Decimal Description

bit 0 1 Program not active

bit 1 2 Run on power up

bit 2 4 Run now

bits 1 & 2 6 Run now and on power up

bit 3 8 Delete

bit 4 16 Delete all

9-6

1 2 ... 241 242 243 244 245 246 247 248 249 250 251 ... 323 324

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Campbell CR800 Especificações Página 246

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