R&S NRX Series, User Manual

Page: 461 / 514

Remote Control Basics
R&S
®
NRX
461 User Manual 1178.5566.02 ─ 07
14.4 Status Reporting System
The status reporting system stores all information on the current operating state of the
instrument, and on errors which have occurred. This information is stored in the status
registers and in the error queue. You can query both with the commands of the
STATus
subsystem.
14.4.1 Hierarchy of the Status Registers
Figure 14-1 shows the hierarchical structure of information in the status registers.
Output queue
Error/event queue
&
&
&
&
&
&
+
&
Status byte
Service request
to controller at
transition from 0 to 1
1
0
2
3
4
5
x
7
1
0
2
3
MAV
ESB
RQS/MSS
7
Service request enable
Operation status
Standard event status
Questionable status
Device status
1
2
3
4
5
Figure 14-1: Status registers overview
1 = Chapter 14.4.3, "Status Byte (STB) and Service Request Enable Register (SRE)" , on page 464
2 = Chapter 14.4.5, "Device Status Register" , on page 465
3 = Chapter 14.4.6, "Questionable Status Register" , on page 467
4 = Chapter 14.4.7, "Standard Event Status and Enable Register (ESR, ESE)" , on page 471
5 = Chapter 14.4.8, "Operation Status Register" , on page 472
The highest level is formed by the status byte register (STB) and the associated ser-
vice request enable (SRE) register.
The status byte register (STB) receives its information from:
●
Standard event status register (ESR)
Status Reporting System
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