Remote Commands
R&S
®
Spectrum Rider FPH
408
User Manual 1321.1011.02 ─ 06.00
Table 13-11: Meaning of bits in STATus:QUEStionable:LIMit register
Bit No. Meaning
0
LIMit 1 FAIL
This bit is set if limit line 1 is violated.
1
LIMit 2 FAIL
This bit is set if limit line 2 is violated.
2 to 14
Not used
15
This bit is always 0.
STATus:QUEStionable:POWer Register
This register contains information about possible overload states. It can be read using
the commands
STATus:QUEStionable:POWer:CONDition?
and
STATus:QUEStionable:POWer[:EVENt]?
.
Table 13-12: Meaning of bits in STATus:QUEStionable:POWer register
Bit No. Meaning
0 to 1
Not used
2
IF_Overload
This bit is set if the IF path is overloaded. ’IFOVL’ is displayed.
3 to 14
Not used
15
This bit is always 0.
STATus:QUEStionable:SYNC Register
This register contains information about sync and bursts not found, and about premea-
surement results exceeding or falling short of expected values.
It can be read using the commands
STATus:QUEStionable:SYNC:CONDition?
and
STATus:QUEStionable:SYNC[:EVENt]?
.
13.6.11.5
Application of the Status Reporting Systems
In order to be able to effectively use the status reporting system, the information con-
tained there must be transmitted to the controller and further processed there. There
are several methods which are represented in the following.
Service Request
Under certain circumstances, the instrument can send a service request (SRQ) to the
controller. Usually this service request initiates an interrupt at the controller, to which
the control program can react appropriately.
As evident from
, an SRQ is always initiated if one or several of bits 2, 3, 4,
5 or 7 of the status byte are set and enabled in the SRE. Each of these bits combines
the information of a further register, the error queue or the output buffer. The ENABle
parts of the status registers can be set so that arbitrary bits in an arbitrary status regis-
Remote Control - Commands
