Orolia GSG-5 Series, User Manual With Scpi Manual, Page: 247 / 392

Then read the event status register to reset it:
SEND:
*ESR?
6.3.1.6 *OPC?
Operation Complete Query
The Operation Complete query places an ASCII character 1 into the device’s Output
Queue when all pending device operations have been finished.
When a scenario is running there will be a pending operation set that is released at the start
of each 100 ms epoch. As a consequence of this, an
*OPC?
command will constantly block
except for a short period at the start of each 100 msec epoch. The
OPC?
command (and
*WAI
command) can hence be used to synchronize the execution of other SCPI com-
mands with GSG’s internal processing loop, with a resolution of 100 ms.
The
OPC?
is the recommended method to synchronize commands as
*OPC?
blocks at the
user’s application, rather than within the GSG. The use of
*OPC?
over
*WAI
is to be pre-
ferred, particularly if several consecutive commands are used as a means to count elapsed
epochs.
For example, checking that the ECEF position command is applied on the next 10 Hz (100
ms) epoch:
sour:scen:ecefposition IMMEDIATE,1000.00,2000.00,3000.00
*OPC?
sour:scen:ecefposition?
Returned format
1
6.3.1.7 *RST
Reset
Resets the device. Any ongoing activity is stopped and the device is prepared to start new
operations.
Example
*RST
6.3 Command Reference
User Manual GSG-5/6 Series Rev. 27 231