Keysight Technologies E5260 Series, Programming Manual

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1- 34 Keysight E5260/E5270 Programming Guide, Edition 4
Programming Basics
Data Output Format
D
Value of Data , Source_data , Data_search , or Data_sense .
This value is expressed in 17-bit binary data. The value can be calculated by the
following formula.
Measurement data =
Count
×
Range
/50000
Source data =
Count
×
Range
/20000
where, Count is the decimal value of D , and Range is the measurement range or
output range indicated by C .
For the current data, the measurement range or output range value can be calculated
by the following formula:
Current measurement/output range (A) = 10^( C -20)
If the top bit of the binary data is 0, Count is positive and equal to the decimal value
of the 16-bit binary data that follows the top bit.
If the top bit is 1, Count is negative. Calculate Count by subtracting 65536
(10000000000000000 in binary) from the decimal value of the 16-bit binary data.
Example:
If the output binary data is:
11010110000100111000100000000001
then,
Data type: Current measurement data ( A =1, B =1)
Range : 1 nA=1E–9 A ( C =01011)
Count : 5000 ( D =00001001110001000)
Status: Normal condition ( E =000)
Channel: SMU1 (channel number 1) ( F =00001)
Measurement data = 5000
×
1E–9/5E+4 = 100 pA
NOTE
B =1 and C =10100 means that HPSMU used 1 A range or MPSMU used 200 mA
range. Then use Range =1 to calculate the data for both HPSMU and MPSMU.
Range =0.2 is not available even if the range value is 200 mA.