Agilent Technologies Agilent 3499A, Руководство пользователя

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Chapter 8 Application Programs
Visual C++ Example Program
8
# if USING_RS232
/* Set RS-232 parameters according to 3499A/B/C settings:
BAUD RATE (9600), */
/* PARITY (NONE, 8 BITS), FLOW (FLOW NONE). */
viSetAttribute( vi, VI_ATTR_ASRL_BAUD, 9600 );
viSetAttribute( vi, VI_ATTR_ASRL_DATA_BITS, 8 );
viSetAttribute( vi, VI_ATTR_ASRL_FLOW_CNTRL, VI_ASRL_FLOW_NONE );
viSetAttribute( vi, VI_ATTR_ASRL_PARITY, VI_ASRL_PAR_NONE );
# endif
/* Set 3499A/B/C to SCPI mode. */
viPrintf( vi, "SYSMODE SCPI\n" );
Sleep(4000);// Wait 4 seconds.
/* Reset the instrument to a known state. */
viPrintf( vi, "*RST\n" );
Sleep( 4000 );
/* Close channels 100 through 103.
viPrintf( vi, "CLOSE (@ 100:103)\n" );
/* Open channels 100 through 103. */
viPrintf( vi, "OPEN (@ 100:103)\n" );
/* Scanning setup: executing the following commands to make
the instrument to scan sweep */
/* channels 100 through 103 two times. The channels are scanned
continuously and the second scan sweep starts 1 second after
the start of the first scan sweep. */
viPrintf( vi, "SCAN (@ 100:103)\n" );// Create a scan list.
viPrintf( vi, "ARM:SOURCE TIMER\n" );// Set arm source to TIMER.
viPrintf( vi, "ARM:TIMER 1\n" );// Interval time between two scan
// sweeps is 1 second.
viPrintf( vi, "ARM:COUNT 2\n" );// Set scan sweep 2 times.
viPrintf( vi, "TRIG:SOURCE IMM\n" );// Set trigger source to
// IMM (default).
viPrintf( vi, "CHAN:DELAY 0, ( @100:103)\n");// Set channel delay
//time to 0 (default).
viPrintf( vi, "INIT\n");// Start the scan.
/* Set visa time-out value to 10 seconds. */
viSetAttribute( vi, VI_ATTR_TMO_VALUE, 10000 );
/* *OPC command will wait until scan finishes. */
status = viQueryf( vi, "*OPC?\n","%t*", retStr );
printf("Scan End.\n");
viClose( vi );// Close session to 3499A/B/C.
viClose( drm );// Close session to the resource manager.
}