*CLS command
Clears the Status Byte by emptying the error queue and clearing all event registers.
Command Syntax: *CLS
Example Statements: OUTPUT 711;"*Cls"
OUTPUT 711;"*CLS"
Attribute Summary: Option: not applicable
Synchronization Required: no
Preset State: not applicable
SCPI Compliance: confirmed
Description:
This command clears the Status Byte register. It does so by emptying the error queue and clearing
(setting to 0) all bits in the event registers of the following register sets:
User Status
Device State
Questionable Voltage
Limit Fail
Questionable Status
Standard Event
Operation Status
In addition, *CLS cancels any preceding *OPC command or query. This ensures that bit 0 of the
Standard Event register will not be set to 1 and that a response will not be placed in the analyzer’s output
queue when pending overlapped commands are completed.
*CLS does not change the current state of enable registers or transition filters.
Note To guarantee that the Status Byte’s Message Available and Master Summary Status bits
are cleared, send *CLS immediately following a Program Message Terminator.
See chapter 1 for more information on the Status Byte register.
Common Commands
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