User`s manual

• HEWLETT-PACKARD,E1347A,0,A.01.00
• HEWLETT-PACKARD,E1460A,0,A.01.00
• NONE,NONE,0,0
Parameters
Parameter Name Parameter Type Range of Values Default Units
<card_number>
numeric 1 - 99 none
The card number relates only to the multiplexer modules within the scanning
multimeter. The multiplexer with the lowest logical address is always card number
1. The multiplexer with the next successive logical address is card number 2, and so
on.
Example Reading Card Type of Card 1
SYST:CTYP? 1 !Query card type.
:ERRor?
SYSTem:ERRor? returns the error numbers and corresponding error messages in
the error queue. Errors generated from the HP E1301A front panel are not stored in
the error queue. See Appendix B in this manual for a listing of the error numbers
and messages.
Comments • When an error is generated by the multimeter, it stores an error number and
corresponding message in the error queue.
• One error is removed from the error queue each time the SYSTem:ERRor?
command is executed. The errors are cleared in a first-in, first-out order. This
means that if several errors are waiting in the queue, each
SYSTem:ERRor? query
returns the oldest (not the most recent) error. That error is then removed from the
queue.
• When the error queue is empty, subsequent SYSTem:ERRor? queries return
+0, “No error”. To clear all errors from the queue, execute the
*CLS command.
• The error queue has a maximum capacity of 30 errors. If the queue overflows, the
last error is replaced with -350, “Too many errors”. No additional errors are
accepted by the queue until space becomes available.
Example Reading the Error Queue
SYST:ERR? !Query the error queue.
Chapter 5 Command Reference 178