Measurement-computing TempScan/1100 Instrukcja Użytkownika Pobierz pdf (Strona 272)

C-2 Program Examples in Quick Basic 879696 TempScan / MultiScan, Appendix C

The QuickBASIC PRINT and INPUT commands are used to communicate with the driver. The most-

commonly used driver commands are

ENTER, OUTPUT, and SPOLL, as follows:

•

ENTER gets data from the selected device, The syntax of the ENTER command is "ENTERaddr", where

addr is the IEEE 488 address of the instrument. Right after the ENTER command, the QuickBASIC

INPUT function must be used to bring the data into a language variable.

•

OUTPUT sends data to the selected device. The syntax of the OUTPUT command is "OUTPUTaddr;out

data"

, where addr is the IEEE 488 address of the instrument, and out data is the string of

characters to send to the device.

•

SPOLL is an abbreviation for Serial Poll which retrieves an 8-bit status response from the selected

instrument. The syntax of the

SPOLL command is "SPOLLaddr", where addr is the IEEE 488

address of the instrument. Right after the

SPOLL command, the QuickBASIC INPUT function must be

used to bring the data into a language variable.

Note:

In all of the following examples, the IEEE 488 bus address is

07.

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Measurement-computing TempScan/1100 Instrukcja Użytkownika Strona 272