Remote Control Basics
R&S
®
NRPxxT(N)
147
User Manual 1177.6023.02 ─ 08
Querying the register:
●
●
Querying the static errors:
●
Table 11-5: Used device status bits and their meaning
Bit no.
Short description
Bit is set if
0
Sum of SERR bits
Sum/combination of SERR bits 1 to 4.
1
SERR measurement not possi-
ble
Static error (SERR) exists. Certain parameter settings could
lead to a situation where subsequent measurements are not
possible.
2
SERR erroneous results
Static error exists. The measurement result is possibly incor-
rect.
3
SERR warning
Static error exists. Status LED of the power sensor is slowly
flashing red.
4
SERR critical
Critical static error exists. Status LED of the power sensor is
fast flashing red.
7
Legacy locked state
The power sensor is locked in the NRP legacy mode. Via the
SCPI channels (USBTMC or TCP/IP), only query commands
can be sent, but no setting commands.
When the first setting command is sent, the NRP legacy inter-
face takes precedence over all other command channels. This
bit is set to
1
, and all other channels can only execute query
commands. If a setting command is sent via a different chan-
nel, the power sensor indicates an error:
-200,"Execution error; sensor in LEGACY mode"
To leave this operating mode, close the NRP legacy channel.
Either close the application which opened the NRP legacy
channel or close at least the connection to the power sensor.
8
Reference PLL locked state
PLL for the clock reference is synchronized. The bit is useful
when selecting an external clock source.
The following states are possible:
●
INT
) :
–
1
(always)
●
EXT
) :
–
1
if the sensor was able to synchronize with external
clock
–
0
if the sensor could not synchronize with external
clock
11.3.6
Questionable Status Register
Contains information on questionable sensor states that occur if the power sensor is
not operated in compliance with its specifications.
Status Reporting System
