Getting Started 1-11
Power-up sequence
The following power-up sequence occurs when the Model 6514 is turned on:
1. The Model 6514 performs self-tests on its EPROM and RAM with all digits and annun-
ciators turned on. If a failure is detected, the instrument momentarily displays an error
message and the ERR annunciator turns on. Error messages are listed in Appendix B.
NOTE If a problem develops while the instrument is under warranty, return it to Keithley
Instruments Inc., for repair.
2. If the instrument passes the self-tests, the firmware revision levels are displayed. For
example:
6514 REV: A01
3. The detected line frequency is then displayed. For example:
FREQ: 60Hz
4. Lastly, information on the selected remote interface is displayed:
a. GPIB — If the GPIB is the selected interface, the instrument will display the
selected language (SCPI or DDC) and primary address. Examples:
SCPI ADDR: 14
DDC ADDR: 14
b. RS-232 — If RS-232 is the selected interface, the instrument will display the baud
rate setting. For example:
RS-232: 9600b
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