Fluke RUSKA 7252, User Manual

Page: 83 / 128

Remote Operation
Serial Operation
5
5-11
Questionable Status (QUES:EVENT, QUES:CONDITION, QUES:ENABLE)
Bit 0 Reserved.
Bit 1 Reserved. 0.
Bit 2 Time is questionable. Set when the clock has not been set.
Bit 3. Temperature is questionable. Sets when oven temperature is not within
range.
Bit 4 Reserved. 0.
Bit 5 Reserved. 0.
Bit 6 Reserved. 0.
Bit 7 Calibration is questionable. Set when the unit has not been calibrated.
Bit 8 Pressure is questionable. Set when the pressure is overranged.
Bit 9 Reserved. 0.
Bit 10 Reserved. 0.
Bit 11 Reserved. 0.
Bit 12 Reserved. 0.
Bit 13 Reserved. 0.
Bit 14 Command warning. Set whenever a command ignores a parameter.
Bit 15 Reserved. 0.
Serial Operation
The RS-232 port accepts the same SCPI commands as the IEEE-488 port. The commands
can be terminated by a carriage return (hexadecimal 0D) or a line feed (hexadecimal 0A).
The responses are always terminated by a carriage return followed by a line feed.
The serial port also supports XON/XOFF. When the XOFF (hexadecimal 13) command
is received, the Calibrator will stop transmitting. Transmission is restarted when the XON
(hexadecimal 11) command is received.
When only one unit is attached, the Control-C (hexadecimal 03) command will clear the
transmit and receive buffers and disable addressing. When addressing is disabled, the unit
will respond to commands without being addressed.
Sample Programs
Sample Program 1 — RUSKA 7252 GPIB (IEEE-488) — Controls Pressure to 20.000
%FS
/*--------------------------------------------------------------------*/
/* Sample Program 1 - RUSKA 7252 GPIB (IEEE-488)
*/
/* */
/* Controls pressure to 20.000 %FS */
/*--------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
#include "decl.h"
/*--------------------------------------------------------------------*/
int device; /* GPIB Device descriptor */
char buffer[256]; /* buffer for input/output strings */
double pressure; /* Pressure read from unit */
int status; /* Status register from unit */
int check_errors (void);