Sony 3026, Руководство программиста

Страница: 93 / 126

3026 Programmer Manual
The interface in the 3026 Realtime Spectrum Analyzer includes a status and
event reporting system that enables the user to monitor crucial events that occur
in the instrument. The realtime spectrum analyzer is equipped with four registers
and one queue that conform to IEEE Std 488.2-1987. This section will discuss
these registers and queues along with status and event processing.
There are two main types of registers:
H
Status Registers: stores data relating to instrument status. This register is set
by the realtime spectrum analyzer.
H
Enable Registers: determines whether to set events that occur in the
instrument to the appropriate bit in the status registers and event queues.
This type of register can be set by the user.
There are five types of status registers:
H
Status Byte Register (SBR)
H
Standard Event Status Register (SESR)
H
Operational Register
H
Questionable Register
H
Instrument Summary Registers (ISR)
Read the contents of these registers to determine errors and conditions.