Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 455 / 813

R&S
®
ZVA/ZVB/ZVT Status Reporting System
1145.1084.12 5.23 E-1
queried using the commands
STATus:QUEStionable:LIMit<1|2>:CONDition?
or
STATus:QUEStionable:LIMit<1|2>[:EVENt]?
STATus:QUEStionable:LIMit1 is also the
summary register of the lower-level STATus:QUEStionable:LIMit2 register.
The bits in the STATus:QUEStionable:LIMit1 register are defined as follows:
Bit No. Meaning
0 LIMit2 Register summary
This bit is set if a bit is set in the STATus:QUEStionable:LIMit2 register and the associated ENABle bit is set to 1.
1 Failed Limit Check for Trace no. 1
This bit is set if any point on trace no. 1 fails the limit check.
... ...
14
Failed Limit Check for Trace no. 14
This bit is set if any point on trace no. 14 fails the limit check.
The bits in the STATus:QUEStionable:LIMit2 register are defined as follows:
Bit No. Meaning
0 Not used
1 Failed Limit Check for Trace no. 15
This bit is set if any point on trace no. 15 fails the limit check.
2 Failed Limit Check for Trace no. 16
This bit is set if any point on trace no. 16 fails the limit check.
Numbering of traces
The traces numbers 1 to 16 are assigned as follows:
•
Traces assigned to channels with smaller channel numbers have smaller trace numbers.
•
Within a channel, the order of traces reflects their creation time: The oldest trace has the
smallest, the newest trace has the largest trace number. This is equivalent to the order of
traces in the response string of the
CALCulate<Ch>:PARameter:CATalog?
query.
•
The number of traces monitored cannot exceed 16. If a setup contains more traces, the newest
traces are not monitored.
Application of the Status Reporting System
The purpose of the status reporting system is to monitor the status of one or several devices in a
measuring system. To do this and react appropriately, the controller must receive and evaluate the
information of all devices. The following standard methods are used:
•
Service request (SRQ) initiated by the measuring device
•
Serial poll of all devices in the bus system, initiated by the controller in order to find out who
sent a SRQ and why
•
Parallel poll of all devices
•
Query of a specific instrument status by means of commands
•
Query of the error queue