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5.3 Standard Event Register/5.4 Extended Event Register
Operation of the Standard Event Register
The standard event register is provided for eight
different kinds of event which can occur inside the
instrument. Bit 5 (ESB) of the status byte is set to "
when any of the bits in this register becomes "
when the corresponding bit of the standard event
enable register becomes "
Examples
1. A query error occurs.
2. Bit 2 (QYE) is set to "
3. Bit 5 (ESB) of the status byte is set to "
the standard event enable register is "
It is also possible to check what type of event has
occurred inside the instrument by reading the contents
of the standard event register.
5.4 Extended Event Register
Reading the extended event register tells you whether changes in the condition register (reflecting internal
conditions) have occurred. A filter can be applied which allows you to decide which events are reported to
the extended event register.
→
FILTer<x>
Condition register
:STATus:CONDition?
Transition filter
:STATus:FILTer<x>
{RISE|FALL|BOTH|NEVer}
Extended event register
:STATus:EESR?
The meaning of each bit of the condition register is as follows.
Bit 0
RUN (Running)
Bit 1
DAV(numeric Data Available)
Bit 3
CAL (Calibrating)
Bit 4
TST (Testing)
Bit 5
PRN (Printing)
Bit 6
ACS (Accessing)
Bit 7
PLLE(PLL source input Error)
Bit 8
POV 1(ch1 input Peak Over)
Bit 9
POV 2(ch2 input Peak Over)
Bit 10
POV 3(ch3 input Peak Over)
Bit 11
POV 4(ch4 input Peak Over)
Bit 12
POV 5(ch5 input Peak Over)
Bit 13
POV 6(ch6 input Peak Over)
Bit 14
POV 7(ch7 input Peak Over)
Bit 15
POV 8(ch8 input Peak Over)
5-4
" (or
1
1
").
1
".
" if bit 2 of
1
".
1
16
15
14
13
12
11
15
14
13
12
11
10
POV8
POV7
POV6
POV5
POV4
POV3
15
14
13
12
11
10
15
14
13
12
11
10
Set to "
Set to "
DAV is set.
Set to "
Set to "
Set to "
Sets to "
Set to "
source and synchronization cannot be achieved.
Set to "
Set to "
Set to "
Set to "
Set to "
Set to "
Set to "
Set to "
Reading from the Standard Event Register
The contents of the standard event register can be
read by the
1
"
read-out, the register will be cleared.
Clearing the Standard Event Register
ïThe standard event register is cleared in the following
three cases.
• When the contents of the standard event register
are read using
• When the
• When power is turned ON again
10
9
8
7
6
9
8
7
6
5
POV2
POV1
PLLE
ACS
PRN
9
8
7
6
5
9
8
7
6
5
" during acquisition.
1
" when the numerical data are updated. The update is complete when
1
" during calibration.
1
1
" during self-test.
1
" while the built-in printer is in operation.
1
" while floppy drive, or external SCSI device is being accessed.
" during harmonic measurement mode, when there is no input at the PLL
1
" when channel 1 input detects a signal that exceeds the range.
1
1
" when channel 2 input detects a signal that exceeds the range.
1
" when channel 3 input detects a signal that exceeds the range.
1
" when channel 4 input detects a signal that exceeds the range.
" when channel 5 input detects a signal that exceeds the range.
1
" when channel 6 input detects a signal that exceeds the range.
1
1
" when channel 7 input detects a signal that exceeds the range.
1
" when channel 8 input detects a signal that exceeds the range.
*ESR
command. After completion of the
*ESR?
command is received
*CLS
5
4
3
2
1
4
3
2
1
0
TST
CAL
0
DAV
RUN
4
3
2
1
0
2
1
0
4
3
IM 253710-11E
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