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15
14
0
0
7
6
HIVOLT
MAGCHG TMPCAL
RPTBUSY
Set to 1 when a calibration report is being printed to the serial port.
SETTLED
Set to 1 when the output has stabilized to within speclfication or the TC measurement
has settled and is available.
REMOTE
Set to 1 when the 5522A is under remote control.
UUTBFUL
Set to 1 when data from the UUT port has filled up the UUT buffer.
UUTDATA
Set to 1 when there ia data available from the UUT port.
HIVOLT
Set to 1 when the 5522A is programmed to a voltage above 33 Volts.
MAGCHG
Set to 1 when the output magnitude has changed as a result of another change
(e.g. RTD_TYPE). This bit is always 0 in the ISR. It changes to 1 only in the
ISCR0 and ISCR1 registers.
TMPCAL
Set to 1 when the 5522A is using temporary (non-stored) calibration data.
OPER
Set to 1 when the 5522A is in operate, 0 when it is in standby.
Figure 5-11. Bit Assignments for the ISR, ISCEs and ISCR
Programming the ISR, ISCR, and ISCE
To read the contents of the ISR, send the remote command,
the ISCR0 or 1, send the remote command,
ISCE0 or 1, send the remote command,
sending a decimal number that represents bits 0 through 15. Every time you read the
ISCR0 or 1, its contents are zeroed. The following sample program reads all five
registers:
10
! THIS PROGRAM READS THE ISR, ISCR, AND ISCE REGISTERS
20
! NOTE THAT THE ICSR? COMMANDS CLEAR THE ISCR CONTENTS
30
PRINT @6, "ISR?"
40
INPUT @6,A%
50
PRINT @6, "ISCR0?"
60
INPUT @6, B%
70
PRINT @6, "ISCE0?"
80
INPUT @6, C%
50
PRINT @6, "ISCR1?"
60
INPUT @6, D%
70
PRINT @6, "ISCE1?"
80
INPUT @6, E%
90
PRINT "ISR =
13
12
RPTBUSY SETTLED REMOTE
5
4
0
ISCE0?
! ASK ISR CONTENTS
! RETRIEVE REGISTER CONTENTS FROM 5522A
! ASK FOR AND CLEAR ISCR0 CONTENTS
! RETRIEVE REGISTER CONTENTS FROM 5522A
! ASK FOR ISCE0 CONTENTS
! RETRIEVE REGISTER CONTENTS FROM 5522A
! ASK FOR AND CLEAR ISCR1 CONTENTS
! RETRIEVE REGISTER CONTENTS FROM 5522A
! ASK FOR ISCE1 CONTENTS
! RETRIEVE REGISTER CONTENTS FROM 5522A
";A%
! DISPLAY ISR
11
10
0
UUTBFUL UUTDATA
3
2
0
0
. To read the contents of
ISR?
, or
. To read the contents of the
ISCR0?
ISCR1?
, or
. The Calibrator responds by
ISCE1?
Remote Operations
Checking 5522A Status
9
8
1
0
0
OPER
gjh049.eps
5
5-41
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