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Common Command Reference
*SRE <mask>
Bit #
Weighted Value
Event
*SRE?
*STB?
*TRG
280
HP E1313/E1413 Command Reference
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Service Request Enable. When a service request event occurs, it sets a
corresponding bit in the Status Byte Register (this happens whether or not the event
has been enabled (unmasked) by
which of these events will assert an HP-IB service request (SRQ). When an event is
enabled by
*SRE
and that event occurs, it sets a bit in the Status Byte Register and
issues an SRQ to the computer (sets the HP-IB SRQ line true). You enable an event
by specifying its decimal weight for
specify the sum of the decimal weights. Refer to Figure 4-6 for an illustration
showing the contents of the Status Byte Group. The C-SCPI type for
int16.
7
6
5
128
64
32
Operation
Request
Standard
Status
Service
Event
Status Register Enable Query. Returns the weighted sum of all enabled
(unmasked) events (those enabled to assert SRQ) in the Status Byte Register.
The C-SCPI type for this returned value is int16.
Status Byte Register Query. Returns the weighted sum of all set bits in the Status
Byte Register. Refer to the
contents of the Status Byte Register.
The Message Available bit (bit 4) may be cleared as a result of reading the response
to
. The C-SCPI type for this returned value is int16.
*STB?
Trigger Command. Triggers an instrument when the trigger source is set to bus
(
TRIGger:SOURce BUS
command) and the instrument is in the Wait-for-Trigger state.
*SRE
). The
*SRE
command allows you to identify
<
mask
>
. To enable more than one event,
4
3
16
8
Message
Questionable
Available
Status
*ESE
command on page 277 for a table showing the
*STB?
does not clear bit 6 (Service Request).
mask
is
<
>
2
1
0
4
2
1
not used
not used
not used
Chapter 5
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