National Instruments GPIB-PC - Manual (Page 124)

Section Four A BASICA/QuickBASIC GPIB-PC Function Calls
©National Instruments Corp. 4A-49 GPIB-PC User Manual
Board Examples:
1. Read 56 bytes of data from a device at talk address &H4C
(ASCII L) and then unaddress it (the GPIB-PC listen address is
&H20 or ASCII space).
100 CMD$ = "? L" ' UNL MLA TAD
110 CALL IBCMD (BRD0%,CMD$)
120 RD$ = SPACE$(56)
130 CALL IBRD (BRD0%,RD$)
140 REM Check IBSTA% to see how the read
150 REM terminated on: CMPL, END, TIMO or
160 REM ERR.
170 REM Data is stored in RD$.
180 REM Unaddress the Talker and Listener.
190 CMD$ = "_?"
' UNT UNL
200 CALL IBCMD (BRD0%,CMD$)
2. To terminate the read on an end-of-string character, see IBEOS
examples.