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Additional Basics on Remote Control
R&S
®
NGL200/NGM200
190User Manual 1178.8736.02 ─ 09
Bit No. Meaning
2 Not used
3 POWer (OPP Tripped)
This bit is set if an over power protection has tripped.
4 Temperature overrange
This bit is set if an over temperature occurs.
5 to 8 Not used
9 OVP Tripped
This bit is set if the over voltage protection has tripped.
10 Fuse Tripped
This bit is set if the fuse protection has tripped.
11 Fast Acq. Data Skipped
12 Ext.Triggered
13 Sense Connection
14 Not used
15 This bit is always 0
Query of an instrument status
Each part of any status register can be read using queries.
There are two types of commands:
●
The common commands *ESR?, *IDN?, *STB? query the higher-level registers.
●
The commands of the STATus system query the SCPI registers
(STATus:QUEStionable)
The returned value is always a decimal number that represents the bit pattern of the
queried register. This number is evaluated by the controller program.
Decimal representation of a bit pattern (binary weights)
The STB and ESR registers contain 8 bits, the status registers 16 bits. The contents of
a status register are specified and transferred as a single decimal number. To make
this possible, each bit is assigned a weighted value. The decimal number is calculated
as the sum of the weighted values of all bits in the register that are set to 1.
Figure A-3: Decimal representation of a bit pattern
Status Reporting System
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