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Section 9. CR1000 Programming

9-3

9.3.3 Transformer

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9.4 Numerical Formats

Four numerical formats are supported by CRBASIC. Most common is the use

of base 10 numbers. Scientific notation, binary, and hexadecimal formats may

also be used, as shown in TABLE 9.4-1. Only standard base 10 notation is

sup

ported by Campbell Scientific hardware and software displays.

TABLE 9.4-1. Formats for Entering Numbers in CRBASIC

Format Example Value

Standard 6.832 6.832

Scientific notation 5.67E-8 5.67X10

-8

Binary: &B1101 13

Hexadecimal &HFF 255

Binary format is useful when loading the status (1 = high, 0 = low) of multiple

flags or ports into a single variable, e.g., storing the binary number

&B11100000 preserves the status of flags 8 through 1. In this case, flags 1 - 5

are low, 6 - 8 are high. Program Code EXAMPLE 9.4-1 shows an algorithm

hat loads binary status of flags into a LONG integer variable.

EXAMPLE 9.4-1. CRBASIC Code: Program to load binary information into a single variable.

Public FlagInt As Long

Public Flag(8) As Boolean

Public I

DataTable (FlagOut,True,-1)

Sample (1,FlagInt,UINT2)

EndTable

BeginProg

Scan (1,Sec,3,0)

FlagInt = 0

For I = 1 To 8

If Flag(I) = true then

FlagInt = FlagInt + 2^(I-1)

EndIf

Next I

CallTable FlagOut

NextScan

EndProg

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Campbell CSIOPC Spezifikationen Seite 111