Denso BHT-200QW Spezifikationen Seite 220

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 587
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 219
212
____________________________________________________________________
File I/O statement
INPUT #
Reads data from a device I/O file into specified variables.
____________________________________________________________________
Syntax:
Syntax:Syntax:
Syntax:
INPUT #filenumber,variable[,variable...]
Parameter:
Parameter:Parameter:
Parameter:
filenumber
A numeric expression which returns a value from 1 to 16.
variable
A numeric or string variable.
Description:
Description:Description:
Description:
INPUT # reads data from a device I/O file (a communications device file or bar code
device file) specified by filenumber and assigns it to variable.
filenumber is a number assigned to the device I/O file when it was opened.
Reading data from a communications device file:
An INPUT # statement reads data fields separated by CR codes or commas (,) and
assigns them to variable.
If more than one variable is specified in an INPUT # statement, the program waits
until all of the specified variables receive data.
If an INPUT # statement reads data longer than the allowable string length, it ignores
only the overflowed data and completes execution, causing no run-time error.
Reading data from a bar code device file:
An INPUT # statement reads the scanned data into the 1st variable.
If more than one variable is specified in an INPUT # statement, the program ignores
the 2nd and the following variables.
If an INPUT # statement reads data longer than the allowable string length, it ignores
only the overflowed data and completes execution, causing no run-time error.
TIP
If the maximum number of digits has been omitted in the read code
specifications of the OPEN "BAR:" statement (except for the universal
product codes), then the INPUT # statement can read bar codes of up to 99
digits. To read bar codes exceeding 40 digits, you should define a sufficient
string variable length beforehand.
Seitenansicht 219
1 2 ... 215 216 217 218 219 220 221 222 223 224 225 ... 586 587

Kommentare zu diesen Handbüchern

Keine Kommentare