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Model 2790 SourceMeter
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Switch System Reference Manual
Bit B1 — Not used.
Bit B2, Query Error (QYE) — Set bit indicates that you attempted to read data
from an empty Output Queue.
Bit B3, Device-Dependent Error (DDE) — Set bit indicates that an instrument
operation did not execute properly. Some of the errors specific to the Model 2790
that will set this bit include the following:
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Error +516: Battery backed RAM error — Data stored in RAM has been lost.
Replace the battery if frequent failures occur.
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Error +517: Cannot resume scan — Due to a card ID change, auto scan has
disabled. The scan will not resume after a power interruption. For details,
see "
Auto scan," page
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Error +520: Saved setup scancard mismatch — Settings for a user setup or
power-on setup do not match the switching module types presently installed.
For details, see
"Defaults and user setups," page
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Error +523: Card hardware error — Communication with the microprocessor
on a switching module card has been lost.
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Error +524: Unsupported card detected — The Model 2790 has detected an
installed Model 77XX switching module that is not supported by the current
version of firmware.
Bit B4, Execution Error (EXE) — Set bit indicates that the Model 2790 detected
an error while trying to execute a command.
Bit B5, Command Error (CME)
Bit B6, User Request (URQ) — Set bit indicates that the LOCAL key on the
Model 2790 front panel was pressed.
Bit B7, Power On (PON) — Set bit indicates that the Model 2790 has been turned
off and turned back on since the last time this register has been read.
7-21."
1-18.
11-13
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