Programming
3
Keysight 53147A/148A/149A Operating and Programming Guide
253
Common Commands
The IEEE 488.2 Common Commands are general-purpose commands that are
common to all instruments (as defined in IEEE 488.2). These commands are
generally not related to measurement configuration. They are used for functions
like resetting the instrument, identification, or synchronization.
*CLS (Clear Status Command)
COMMAND
*CLS
Clears all event registers summarized in the status byte (Standard Event Status
Register, Operation Event Status Register, and Questionable Data Event Status
Register) and clears the Error Queue.
COMMENTS
– The
*CLS
command does not clear data memories or any other settings.
–
*CLS
places the instrument in “Operation Complete Idle State” and “Operation
Complete Query Idle State” (IEEE 488.2). This results in the disabling of any
prior
*OPC
command.
– If
*CLS
immediately follows a program message terminator, the output queue
and the
MAV
bit are cleared, since any new program message after a
program-message terminator clears the output queue.
– This command clears any displayed error message from the front panel.
– If the front panel is displaying any menu when
*CLS
is received,
the menu is abandoned (equivalent to pressing the
Clear
key).
RELATED
FRONT-PANEL
KEYS
Clear
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