Command Reference
R&S
®
ZNL/ZNLE
567
User Manual 1178.5966.02 ─ 07
you want to control. If you are using the tool directly on the R&S
ZNL/ZNLE, you can
use an NT Pipe (COM Parser) connection, which requires no further configuration. For
help on setting up other connection types, check the tool's online help (by clicking the
"Help" button in the dialog box).
The IECWIN offers an online help with extensive information on how to work with the
tool.
10.4.4
Status Reporting System
The status reporting system stores all information on the present operating state of the
instrument, and on errors which have occurred. This information is stored in the status
registers and in the error queue. Both can be queried using the
STATus...
com-
mands.
Hierarchy of status registers
As shown in section
, the status information is of hierarch-
ical structure.
●
STB, SRE:
The STatus Byte (STB) register and its associated mask register Service Request
Enable (SRE) form the highest level of the status reporting system. The STB pro-
vides a rough overview of the instrument status, collecting the information of the
lower-level registers.
●
The STB receives its information from:
The Event Status Register (ESR) with the associated mask register standard Event
Status Enable (ESE).
The STATus:OPERation and STATus:QUEStionable registers which are defined by
SCPI and contain detailed information on the instrument.
●
IST, PPE:
The IST flag ("Individual STatus"), like the SRQ, combines the entire instrument
status in a single bit. The PPE is associated to the IST flag. It fulfills an analogous
function for the IST flag as the SRE does for the service request.
●
Output buffer:
contains the messages the instrument returns to the controller. It is not part of the
status reporting system but determines the value of the MAV bit in the STB.
All status registers have the same internal structure, see
For more information on the individual status registers, see
.
VNA Remote Control Basics
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