Remote Control - Commands  R&S NRP-Z91  
1168.8579.12 6.2  E-3 
Commands as per IEEE 488.2 
The sensor supports a subset of the possible setting commands and queries (Common Commands and 
Queries) in line with IEEE 488.2. 
 
*IDN? – Identification Query 
*IDN? returns a string with information on the sensor's identity (device identification code). In addition, 
the version number of the installed firmware is indicated. The string for a sensor of type R&S NRP-Z51 
has the following structure: 
 
ROHDE&SCHWARZ,NRP-Z51,<serial number>,<firmware version> 
 
<serial number>: Serial number in ASCII 
<firmware version>: Firmware version number in ASCII  
 
*RST – Reset 
*RST sets the sensor to the default state, i.e. the default settings for all test parameters are loaded. 
 
*TRG – Trigger 
*TRG triggers a measurement. For this purpose, the sensor is in the WAIT_FOR_TRIGGER state and 
the source for the trigger event is set to BUS (TRIGger:SOURce BUS). 
 
*TST? – Self Test Query 
*TST? starts a selftest and returns 0 (no error found) or 1 (an error has occurred). The selftest 
comprises the following functions: 
• RAM test 
• Operating voltages 
• Temperature measurement 
• Calibration data set 
• Noise 
• Zero-point offsets.