>@9
Multitone Audio Test System
User Manual
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V
3.32
Device Status
*STB?
Use
Fetches the STatus Byte register. See also chapter IEEE Standard Status Data Structure.
Calculation
STB = n
7
*128 + n
6
*64 + n
5
*32 + n
4
*16 + n
3
*8 + n
2
*4 + n
1
*2 + n
0
n
7
n
6
n
5
n
4
n
3
n
2
n
1
n
0
Not used
Master summary status (MSS) The MSS message indicates that RT-1M has at
least one reason for requesting service.
Event status summary bit (ESB), indicating whether any of the enabled events
has occurred since the last reading of the standard event status register.
Message available summary bit (MAV). The MAV message indicates whether or
not the output queue is empty. Whenever RT-1M is ready to accept a request by
the controller to output data, MAV summary message will be TRUE.
Not used
Not used
Not used
Not used
Example
:
→
→
:
*STB?
32
*OPC
Use
The OPeration Complete command causes RT-1M to generate the operation complete
message in the standard event status register (Bit 0) when all pending selected device
operations have been finished. The *OPC command allows synchronization between
controller and RT-1M..
Example
:
→
*esr?
*ese 1;*sre 32
output:mtone:start, *OPC
(clears previous events)
(enable operation complete event)
(RT-1M will request service [serial poll]
as soon as the measurement is finished)
*OPC?
Use
The OPeration Complete query causes RT-1M to place an ‘1’ into the RT-1M output queue
when all pending selected device operations have been finished. The *OPC command allows
synchronization between controller and RT-1M using the MAV bit in the status byte register.
See also chapter IEEE Standard Status Data Structure.
Parameter
<OPCvalue>
boolean
Range
0
1
not finished
finished
Example
:
→
→
:
*OPC?
1
Explanation
Use *OPC? with serial polling (e.g. MAV).
