Rohde & Schwarz 1424.7805K02, User Manual

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Remote control basics
R&S
®
NRX
476 User Manual 1178.5566.02 ─ 09
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
3
4
5
2
Figure 14-1: Status registers overview
1 = Chapter 14.4.3, "Status byte (STB) and service request enable register (SRE)" , on page 479
2 = Chapter 14.4.5, "Device status register" , on page 480
3 = Chapter 14.4.6, "Questionable status register" , on page 482
4 = Chapter 14.4.7, "Standard event status and enable register (ESR, ESE)" , on page 486
5 = Chapter 14.4.8, "Operation status register" , on page 487
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)
●
Associated standard event status enable register (ESE)
●
SCPI-defined operation status register
●
Questionable status register, which contains detailed information on the device.
Status reporting system