Keysight E5260/E5270 Programming Guide, Edition 4 4- 97
Command Reference
Command Reference
RI
The RI command specifies the current measurement range or ranging type. In the
initial setting, the auto ranging is set. The range changing occurs immediately after
the trigger (that is, during the measurements). Current measurement channel can be
decided by the CMM command setting and the channel output mode (voltage or
current).
For the high speed spot measurement, use the TI/TTI command.
The range setting is cleared by the CL, CA, IN, *TST?, *RST or a device clear (HP
BASIC CLEAR) command.
Syntax RI chnum,range
Parameters chnum : Current measurement channel number. The value must be slot number
where the module has been installed. Integer expression. 1 to 8 (1 and 5
are not available for HPSMU). See
Table 4-1 on page 4-9.
range : Measurement range or ranging type. Integer expression. If you select
the fixed range, the instrument performs measurement by using the
specified range. For the auto or limited auto ranging, the measurement
range will be set to the minimum range that covers the measured
values. However, the instrument never uses the range less than the
specified range for the limited auto ranging. See
Table 4-3 on
page 4-11.
For the measurement mode that uses pulse source, if you select the auto
or limited auto ranging, the measurement channel uses the minimum
range that covers the compliance value or current output range.
Example
Statements
OUTPUT @E5270;"RI 1,0"
OUTPUT @E5270;"RI 2,-20"
NOTE
To use 1 pA range (only for E5270B)
The measurement channel connected to the ASU (Atto Sense and Switch Unit)
supports the 1 pA range. To use the 1 pA range, set the 1 pA fixed range or the 1 pA
limited auto ranging.
To enable the 1 pA range for the auto ranging mode, execute the SAR command.
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