Remote-processing BASIC for the CX-10 Modbus Manual de usuario descargar pdf (Pagina 73)

BASIC PROGRAMMING GUIDE

2-64

Syntax: A = STR(10,$(n),

format,variable

)

Description:

Converts and formats

variable

into a string and puts it into $(n). Variable A returns irrelevant data.

Formatting is controlled by the

format

variable. Strings are formatted into one of 3 basic patterns, described

below.

format

= 0. Default free format. When number is between ±99999999 and ±0.1, RPBASIC will save integers

and fractions. When numbers are outside this range, the F0 format, described next, is used.

format

= Fx. Floating point format. 'x' determines how many digits after the decimal point are saved. When

x = 0, the number of trailing digits will vary and trailing 0's are not saved. 'x' is represented as a hex number.

When

format

= 0F3H, 3 decimal numbers are printed. An alternate way of setting floating point output is to

make

format

= the number of decimal numbers plus 240.

format

= xyH. Force integer and/or fraction output. Command is same as USING(##.##), where 'x' is the

number digits left of the decimal point and y is to the right. Maximum value for x and y is 7. Use the hex

format to set the number.

Example:

10 String 200,20

20 C = 23.45

30 F = 0

40 A = STR(10,$(0),F,C)

50 PRINT "Variable value, before formatting:",C

60 PRINT "String in free format:",$(0)

70 F = 0F2H

80 A = STR(10,$(0),F,C)

90 PRINT "Using floating point format:",$(0)

100 F=52H

110 A=STR(10,$(0),F,C)

120 PRINT "Using #####.## format:",$(0)

run

Variable value, before formatting: 23.45

String in free format: 23.45

Using floating point format: 2.34 E+1

Using #####.## format: 23.45

ERROR

BAD ARGUMENT When

function

is out of range or string data is incorrect.

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 83 84

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