Detecting The Occurrence Of An Error - Keysight E4981A Programming Manual

Avoiding Mistakes Related to Work and Daily Checks
Avoiding Mistakes Related To Work

Detecting the occurrence of an error

Using error queue
The error queue contains the error number and error message of an error that
has occurred. By reading out the contents of the error queue, you can find out
which error has occurred. To read out the contents of the error queue, use the
following command.
•
You can use the error queue in the following ways.
1. You can use it to make a branch for error handling in your program. When
2. You can use it to investigate the kind of error that has occurred when an
Using status report system
You can detect the status of the E4981A by using the status register. This
section describes how to detect the occurrence of an error by using the status
register. For information on the entire status report system (for example,
information on each bit of the status register), refer to Appendix C,
Reporting System" on page
The occurrence of an error is indicated by the standard event status register.
An SRQ (service request), which is useful for detecting the occurrence of an
error in your program, uses the information indicated by this register.
To detect the end of sweep with an SRQ, use the following commands.
•
•
The procedure is given below.
Step 1. Set the E4981A to generate an SRQ if one of the error occurrence bits of the
standard event status register is set to 1.
Step 2. Perform interrupt handling in the program when SRQ occurs.
84
:SYSTem:ERRor[:NEXT]?
you read out the contents of the error queue, 0 and "No error" are read out
as the error number and error message if no error has occurred. This result
helps you to determine whether an error has occurred and to make the
branch of your program's flow. You can also use it to restrict error handling
to the occurrence of a specific error. However, it is difficult to use this
method to perform processing during the occurrence of an error.
error is detected by using SRQ and other means.
on page 162
*SRE
on page 157
*ESE
on page 280
363.
Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
"Status