16-47
IM 765501-01E
Communication Commands
3
2
1
6
5
4
9
8
7
12
11
10
15
14
13
18
17
16
16.3 Status Reports
16.3.5 Measure Event Register
Measure Event Register
SMP
OVR
CHI
CLO
CHI
CLO
Event Register
:STATus:SENSe:EVENt?
Status Register
:STATus:SENSe:CONDition?
67 543210
OVR LHI
LHI LLO
LLO
67 543210
EOM
Bit 7 SMP (Sampling Error)
Set to 1 when a sampling error (trigger is applied
before the completion of the source measure cycle)
occurs.
Bit 6 EOM (End of Measurement)
When the measurement is completed, the event
register bit is set to 1.
Bit 5 OVR (Over Range)
The bit in the condition register is set to 1 when a
measurement overrange occurs and reset to 0 when
overrange is corrected. The bit in the event register is
set to 1 when the condition register bit changes from 0
to 1.
Bit 4
Not used (always 0)
Bit 3 LHI (High Limiting)
The bit in the condition register is set to 1 when the
high limiter is activated and set to 0 when is
deactivated. The bit in the event register is set to 1
when the condition register bit changes from 0 to 1.
Bit 2 LLO (Low Limiting)
The bit in the condition register is set to 1 when the low
limiter is activated and set to 0 when is deactivated.
The bit in the event register is set to 1 when the
condition register bit changes from 0 to 1.
Bit 1 CHI (Compare High)
The bit in the condition register is set to 1 when the
comparison result is high and set to 0, otherwise. The
bit in the event register is set to 1 when the condition
register bit changes from 0 to 1.
Bit 0 CLO (Compare Low)
The bit in the condition register is set to 1 when the
comparison result is low and set to 0, otherwise. The
bit in the event register is set to 1 when the condition
register bit changes from 0 to 1.
Bit Masking
To mask a bit in the measure event register so that it
does not cause bit 1 (MSB) of the status byte to
change, set the corresponding bit in the measure event
enable register to 0. Use the :STATus:SENSe:ENABle
command for this purpose.
Reading from the Measure Event Register
The contents of the measure event register can be
read by the :STATus:SENSe:EVENt? command. After
the register is read, it is cleared. The contents of the
measure condition register can be read by the
:STATus:SENSe:CONDition? command. Reading the
register does not change the contents of the register.
Clearing the Measure Event Register
The measure event register is cleared in the following
three cases.
• When the contents of the source event register is
read by the :STATus:SENSe:EVENt? command.
• When a *CLS command is received.
• When the instrument is power cycled.
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