Service manual

Appendix C 235
Error messages
Order of Alphabet
C. Error Messages
When the percent format was not selected as the display format, you attempted to select
delta % as the data operation setting (you sent the MATH
DELP command). If you want to
select delta % as the data operation setting, the percent format (command: FMT PERC)
must have been selected as the display format.
48 PHASE LOCK LOOP UNLOCKED
Anomalies in the 4294A’s internal circuit were detected (phase lock loop was not locked).
The instrument needs adjustment or repair. Contact your local Agilent Technologies sales
office or the company you purchased this instrument from.
193 POWER ON TEST FAILED
In the power-on self-test, a fault of the instrument was detected. Contact your local Agilent
Technologies sales office or the company you purchased this instrument from.
26 PRINTER: not on, not connected, out of paper
The printer does not respond to the control from the 4294A. Check the power to the printer,
online status, paper, and so on. Or, the connected printer may not be supported. For
information on supported printers, refer to the “Options and accessories” chapter.
-284 Program currently running
The program is running.
This message is displayed when you attempt to perform an operation that cannot be
executed during the execution of a program. For example, when you attempt to delete a
running program.
-280 Program error
A program error.
An error occurred in a downloaded program. An error other than -281 to -289 occurred.
-112 Program mnemonic too long
The length of the header exceeds 12 characters. (Refer to IEEE488.2,7.6.1.4.1.))
-286 Program runtime error
An error occurred while an HP Instrument BASIC program is being executed. To obtain
detailed information on the occurred error, use the ERRM$ or ERRM command of HP
Instrument BASIC.
-285 Program syntax error
A program syntax error.
A program syntax error occurred in the downloaded program.
Q
-430 Query DEADLOCKED
Status that causes a “DEADLOCKED” Query error. (Refer to IEEE488.2,6.3.1.7.) This
error occurs, for example, when both input and output buffers become full and the 4294A
cannot continue processing.
-400 Query error
A comprehensive Query error occurred for which 4294A could not detect further details of