System SourceMeter® Instrument Reference Manual  Section 3: 
 
2600BS-901-01 Rev. B / May 2013  3-17 
 
Buffer status 
The buffer reading status attribute includes the status information as a numeric value; see the 
following table for values. For example, to access status information for the second element of SMU 
channel A buffer 1, use the following command: 
stat_info = smua.nvbuffer1.statuses[2] 
 
Buffer status bits 
Bit  Name  Hex value  Description 
Over temperature condition 
Measure range was autoranged 
Source range was autoranged 
4-wire (remote) sense mode enabled 
Source function in compliance 
 
 
Dynamic reading buffers 
Reading buffers can also be allocated dynamically. Dynamic reading 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 reading buffer named mybuffer that can 
store 100 readings: 
mybuffer = smua.makebuffer(100) 
Allocated reading buffers can be deleted as follows: 
mybuffer = nil 
Dynamically allocated reading buffers can be used interchangeably with the smuX.nvbufferY 
buffers that are described in Dedicated reading buffer designations (on page 3-11
).