Remote Commands
R&S
®
ZNH
305
User Manual 1334.5985.02 ─ 02
SYSTem:VERSion?
This command queries the SCPI version the remote control is based on.
This command is a query and therefore has no *RST value.
Example:
SYST:VERS?
Usage:
Query only
12.6.9
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. The status registers and the error queue can be quer-
ied via Ethernet.
The information is of a hierarchical structure. The register status byte (STB) defined in
IEEE 488.2 and its associated mask register service request enable (SRE) form the
uppermost level. The STB receives its information from the standard event status reg-
ister (ESR) which is also defined in IEEE 488.2 with the associated mask register stan-
dard event status enable (ESE) and registers
STATus:OPERation
and
STATus:QUEStionable
which are defined by SCPI and contain detailed information
on the instrument.
The 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.
Structure of an SCPI Status Register
....................................................................305
Overview of the Status Register
............................................................................307
Status Byte (STB) & Service Request Enable Register (SRE)
............................. 308
Event Status Register (ESR) and Event Status Enable Register (ESE)
Application of the Status Reporting Systems
........................................................312
Reset Values of the Status Reporting System
...................................................... 314
Remote Commands of the Status Reporting System
........................................... 314
12.6.9.1
Structure of an SCPI Status Register
Each standard SCPI register consists of 5 parts which each have a width of 16 bits and
have different functions. The individual bits are independent of each other, i.e. each
hardware status is assigned a bit number that applies to all five parts. For example, bit
0 of the STATus:OPERation register is assigned to the calibration status of the
R&S
ZNH. Bit 15 (the most significant bit) is set to zero for all parts. Thus the contents
of the register parts can be processed by the controller as positive integer.
Remote Control - Commands
