Table 7-7 Buffer Status Bits; Buffer Status; Dynamically Allocated Buffers - Keithley 2601 Reference Manual

Section 7: Buffer (Data Store)

Buffer status

The buffer reading status attribute can include the status information as a numeric value shown in
Table 7-7. To access status information, send the following command:
stat_info = smua.nvbuffer1.statuses[2]
Table 7-7
Buffer status bits
Bit
B0
B1
B2
B3
B4
B5
B6
B7

Dynamically allocated buffers

RAM reading buffers can also be allocated dynamically. The buffers are created and allocated with
the smuX.makebuffer(n) command, where n is the number of readings the buffer can store.
For example, the following command allocates a Channel A buffer named mybuffer that can
store 100 readings:
mybuffer = smua.makebuffer(100)
Allocated buffers can be deleted as follows:
mybuffer = nil
Dynamically allocated reading buffers can be used interchangeably with the smuX.nvbufferY
buffers that are described earlier in this section in
.
7-8
Name Hex value Description
TBD 0x01
Overtemp 0x02
AutoRangeMeas 0x04
AutoRangeSrc 0x08
4Wire 0x10
Rel 0x20
Compliance1 0x40
Filtered 0x80
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Series 2600 System SourceMeter® Instruments Reference Manual
Reserved for future use.
Over temperature condition.
Measure range was auto ranged.
Source range was auto ranged.
4W (remote) sense mode enabled.
Rel applied to reading.
Source function in compliance.
Reading was filtered.
""Reading buffer
Section Topics
designations"."
2600S-901-01 Rev. C / January 2008