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Remote Control - OPC
R&S
®
QAR
110
User Manual 1178.7200.02 ─ 09
7.4
Timing Diagram
The timing of communication for measurements and diagnostics between the PLC and
the R&S
QAR is identical. After the R&S
QAR sets
State.Results_Ready
, PLC can
read the results. R&S
QAR discards measurement results after the PLC sets
Results_Received
.
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
PLC
Type_Measurement
Config_Measurement
Configuration
Trigger.MeasureRadome
or
Trigger.Diagnostics
Results_Received
R&S QAR
State.Initializing
State.Ready_ToMeasure
State.Processing
State.Results_Ready
Figure 7-3: Timing diagram for measurements and diagnostics
7.5
Error Handling
Errors can occur during R&S
QAR initialization or while performing measurements.
●
Initialization errors
You cannot resolve errors that occur during device initialization. The application
saves the errors to a log, sets the state to
State.Malfunction
and terminates.
●
Measurement errors
If errors occur during a measurement, the
Error_Flag
,
Error_Msg
and
Error_Code
are set and the device switches to
State.Results_Ready
.
Error Handling