Remote Control
R&S
®
ZNC
350
User Manual 1173.9557.02 ─ 13
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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 provides
a rough overview of the instrument status, collecting the information of the lower-level
registers.
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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.
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IST, PPE:
The IST flag ("Individual STatus"), like the SRQ, combines the entire instrument sta-
tus 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.
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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
SRE register
The service request enable register SRE can be used as ENABle part of the STB if the
STB is structured according to SCPI. By analogy, the ESE can be used as the ENABle
part of the ESR.
5.5.1 Overview of Status Registers
The status registers of the R&S ZNC are implemented as shown below.
Status Reporting System
