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14.4 Extended Event Register
The extended event register receives information about changes in the condition register, which
indicates the instrument's internal condition. The information is the result of edge detection performed
by the transition filter.
Condition register
:STATus:CONDition?
Transition filter
:STATus:FILTer<x>
{RISE│FALL│BOTH│NEVer}
Extended event register
:STATus:EESR?
The condition register bits are described below.
Bit 0
EOS
(End of Sweep)
Bit 1
OUT
(Output ON)
Bit 3
SCG
(Source Change)
Bit 5
EMR1
(FAN Stop)
Bit 6
EMR2
(Temprature Error)
Bit 7
EMR3
(Amplitude Temprature Error)
Bit 8
EMR4
(Internal Power Error)
Bit 10
FBE
(Feedback Error)
Bit 11
OSC
(Oscillating)
Bit 12
LMT
(Limting)
The transition filter parameters detect changes in the specified condition register bits (numeric suffixes
1 to 16) and overwrite the extended event register in the following ways.
RISE
The specified extended event register bit is set to 0 when the corresponding condition
register bit changes from 0 to 1.
FALL
The specified extended event register bit is set to 1 when the corresponding condition
register bit changes from 1 to 0.
BOTH
The specified extended event register bit is set to 1 when the corresponding condition
register bit changes from 0 to 1 or from 1 to 0.
NEVer
Always zero.
IM 2558A-01EN
15
14
13
12
16
FILTer<x>
15
14
13
12
11
0
0
0
LMT
OSC
15
14
13
12
11
15
14
13
12
11
Set to 1 during a sweep operation.
EOS changing from 1 to 0 indicates that sweeping has
been completed (held).
Set to 1 during output.
When the output value is changed, this bit is 1 until the
output reaches 90% of the value.
Set to 1 when the cooling fan stops.
Set to 1 when an abnormal temperature is detected
inside the 2558A.
Set to 1 when an abnormal amplifier temperature is
detected inside the 2558A.
Set to 1 when an internal power supply error is detected
in side the 2558A.
Set to 1 when a feedback correction error is detected.
Set to 1 when an amplifier oscillation error is detected.
Set to 1 when an overload is detected.
11
10
9
8
7
6
5
10
9
8
7
6
5
4
FBE
0
EMR4
EMR3
EMR2
EMR1
0
10
9
8
7
6
5
4
10
9
8
7
6
5
4
4
3
2
1
3
2
1
0
SCG
0
OUT EOS
3
2
1
0
1
0
3
2
14-5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
App
Index
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