8-38 Agilent 4155B/4156B User’s Guide Vol.2, Edition 5
If You Have A Problem
If Errors Occur
If a Measurement Data Status is Displayed
If measurement or stress force cannot be performed correctly, the measurement data
status is displayed at the bottom of the GRAPHICS, LIST, KNOB SWEEP, or
STRESS FORCE screen. The status indicates hardware and calculation errors.
The status format depends on the displayed screen as follows:
GRAPH/LIST: GRAPHICS and KNOB SWEEP screen
Status is displayed in following format:
STATUS: AB AB AB ( A A A A A A A A C )
• AB AB AB is for X, Y1, and Y2 axis respectively. No Y2 for KNOB SWEEP.
• A A A A A A A A C is for SMU1 to SMU6, VMU1, VMU2, and PGU1/2
respectively.
Where, A, B, and C mean as follows:
A hardware status error. If multiple errors occur, numbers are
added and displayed as a hexadecimal number.
• 1 : AD converter overflow.
• 2 : Oscillation
• 4 : Other channel reached compliance limit.
• 8 : This channel reached compliance limit.
B data error. If multiple errors occur, numbers are added and
displayed as a hexadecimal number.
• 1 : stack register overflow
• 2 : calculation error
• 4 : only one data for delta measurement. At least 2 data
needed.
C PGU status
• 1 : PGU average output current exceeds 100 mA.
For non-measurement channels, "_" is displayed.
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