R&S
®
CMW 500 Remote Control
Command Processing
Operating Manual 1202.3986.32 – 03 99
These tasks are rejected.
5.4.8.4 Monitoring Measurement and Generator States
The state of each measurement and generator can be queried with commands of the
following types:
FETCh:<Meas_FWA>:<Measurement>:STATe?
FETCh:<Meas_FWA>:<Measurement>:STATe:ALL?
SOURce:<Gen_FWA>[:STATe]?
For a detailed description see Measurement Substates and Generator Control.
Example 1: Conflicting generators
SOURce:<Gen_FWA 1> ON
SOURce:<Gen_FWA 1>?
Switch on the first generator and query its
state. After hardware adjustment, the
response is ON, i.e. the generator is running
and an output signal is available.
SOURce:<Gen_FWA 2> ON
SOURce:<Gen_FWA 2>?
Switch on the second generator and query its
state. Again, the response is ON, i.e. the
generator is running.
SOURce:<Gen_FWA 1>?
Check the state of the first generator. The
generator state should be OFF
generator has replaced the first generator.
Example 3: Conflicting measurements
Two conflicting measurements will be queued; the first one is set to single shot mode;
see examples in section Queuing of Measurements.
5.5 Command Processing
The block diagram below shows how GPIB bus commands are serviced in the
instrument. The instrument model consists of the following components:
Input Unit
Command Recognition
Data Base and Instrument Hardware
Status Reporting System
Output Unit
The individual components work independently and simultaneously. They
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