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STATus Commands
Parameter
A decimal value that corresponds to the binary-
weighted sum of the bits in the register.
Enable bit 3 and 4 in the enable register: *ESE 24
Any or all conditions can be reported to the ESB bit through the enable register. To set the enable register mask,
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write a decimal value to the register using *ESE.
*CLS does not clear the enable register, but does clear the
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The value returned is the binary-weighted sum of all bits set in the register.
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*ESR?
Event Status Event Query. Queries the
read-only register, which stores (latches) all standard events. Refer to
Parameter
(none)
Read event status enable register: *ESR?
Any or all conditions can be reported to the ESB bit through the enable register. To set the enable register mask,
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write a decimal value to the register using *ESE.
Once a bit is set, it remains set until cleared by this query or *CLS.
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The value returned is the binary-weighted sum of all bits set in the register.
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*OPC
Sets the OPC (operation complete) bit in the Standard Event register. This occurs at the completion of the current oper-
ation. Refer to
Status Tutorial
Parameter
(none)
Set the Operation Complete bit: *OPC
The purpose of this command is to synchronize your application with the instrument.
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Used in conjunction with initiated acquisitions, initiated transients, output state changes, and output to settling
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time to provide a way to poll or interrupt the computer when these pending operations complete.
Other commands may be executed before the operation complete bit is set.
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The difference between *OPC and *OPC? is that *OPC? returns "1" to the output buffer when the current oper-
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ation completes.
90
event register
for the
Typical Return
<bit value>
for more information.
Typical Return
(none)
Typical Return
<bit value>
event
register.
Standard Event Status
Status Tutorial
Agilent N8900 Series Operating and Service Guide
group. The event register is a
for more information.
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