Network and remote operation
R&S
®
NRPM
97
Mannual 1425.8663.02 ─ 08
The highest level is formed by the status byte register (
STB
) and the associated
service request enable (
SRE
) register.
The
STB
receives its information from the standard event status register (
ESR
)
and the associated Standard Event Status Enable (
ESE
) Register, as well as from
the SCPI-defined operation status register, and the questionable status register,
which contain detailed information on the device, and from the device status reg-
ister.
9.2.2
Structure of an SCPI status register
Each SCPI register consists of five 16-bit registers which have different functions
(see
). The individual bits are independent of each other, i.e. each hard-
ware status is assigned a bit number which is the same for all five registers. Bit
15 (the most-significant bit) is set to zero in all registers. This prevents problems
some controllers have with the processing of unsigned integers.
Figure 9-2: Standard SCPI status register
CONDition status register part
The five parts of an SCPI register have different properties and functions:
The
CONDition
part is written into directly by the hardware or the sum bit of the
next lower register. Its contents reflect the current instrument status. This register
Status reporting system
