2600S-901-01 Rev. C / January 2008
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D-7
Series 2600 System SourceMeter® Instruments Reference Manual
Appendix D: Status Model
Figure D-5
Status model
0
6
5
3
4
2
1
7
14
13
12
11
10
9
8
15
Measurement Event
Register (measurement)
+
Voltage Limit (VLMT)
Instrument Summary (INST)
Buffer Available (BAV)
Reading Overflow (ROF)
0
6
5
3
4
2
1
7
14
13
12
11
10
9
8
15
Measurement Event
Current Limit Summary
+
SMU A (SMUA)
SMU B (SMUB)
0
6
5
3
4
2
1
7
14
13
12
11
10
9
8
15
Measurement Event
Instrument Summary
Register
+
SMU A (SMUA)
SMU B (SMUB)
ToMeasurement Summary
Bit (MSB) in Status Byte
(status.condition/STB)
0
6
5
3
4
2
1
7
14
13
12
11
10
9
8
15
Measurement Event
SMU A Summary
Register
+
Current Limit (ILMT)
Buffer Available (BAV)
Reading Overflow (ROF)
0
6
5
3
4
2
1
7
14
13
12
11
10
9
8
15
Measurement Event
SMU B Summary
Register
+
Current Limit (ILMT)
Buffer Available (BAV)
Reading Overflow (ROF)
Similar registers
exist for Voltage
Limit, Reading
Overflow, and Buffer
Available
Voltage Limit (VLMT)
Voltage Limit (VLMT)
Current Limit (ILMT)
Output Enable (OE)
status.measurement.instrument.smub
status.measurement.instrument.smua
status.measurement.instrument
status.measurement.current_limit
status.measurement
(status.measurement.voltage_limit)
(status.measurement.reading_overflow)
(status.measurement.buffer_available)
(measurement event registers)