Chapter 10
129
Command Reference
*TST?
1
0
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and
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*TST?
Syntax
*TST?
Description
Executes the self-test consisting of the following items and reads out the result. (Query
only)
Query response
{numeric}<newline><^END>
The readout data is the sum of the error codes of failed tests. If no error has occurred, 0 is
read out.
Related commands
Equivalent key
sequence
[Config]
(
[Blue]
-
[-]
) -
Test
-
Internal
*WAI
Syntax
*WAI
Description
Waits until all commands sent before this command are executed. (No query)
Equivalent key
sequence
No equivalent key is available on the front panel.
Table 10-1
Self-test Items
Test item
Test description
Error
code
RAM
Verifies that the RAM data bus is connected correctly and there is
no faulty memory cell.
1
Boot ROM
Verifies that the checksum of Boot ROM is correct.
2
Flash ROM
Verifies that the checksum of Flash ROM is correct.
4
Calibration data
Verifies that the checksum of the calibration data in the
EEPROM (Factory Calibration Data) is correct.
8
Compensation
data
Verifies that the checksum of the compensation data in the
EEPROM is correct. Even if the test fails, the compensation data
is not initialized.
16
A/D converter
Verifies that the board ID of the A/D converter operates normally.
32
Backup RAM
Verifies that the instrument setting value in the backup memory
(RAM) is correct. Even if the test fails, the instrument setting
value is not initialized.
64
Summary of Contents for 4288A
Page 18: ...16 Chapter1 Making Effective Use of This Manual How To Use This Manual ...
Page 212: ...210 AppendixA Manual Changes Manual Changes ...
Page 248: ...246 AppendixB Information for Replacing 4278A with 4288A Comparison of Interfaces ...
Page 258: ...256 AppendixC Status Reporting System Using the Status Reporting System ...
Page 288: ...286 Index Index ...