Status Reporting - Keysight 8990B Programming Manual

1 8990B Remote Operation

Status Reporting

Status reporting is used to monitor the 8990B to determine when events have
occurred. Status reporting is accomplished by configuring and reading status
registers.
The 8990B has the following main registers:
– Status Byte Register
– Standard Event Register
– Operation Status Register
– Questionable Status Register
– Device Status Register
There are other registers that exist "behind" the main registers, and are described
later in this chapter.
Status Byte and Standard Event registers are read using the IEEE-488 common
commands.
Operation, Questionable, and Device Status registers are read using the SCPI
STATus command subsystem.
General status register model
The generalized status register model shown below is the building block of the
SCPI status system. This model consists of a condition register, a transition filter,
an event register, and an enable register. A set of these registers is called a status
group.
Bit 0
Bit 1
Bit 2
Bit 3
Figure 1-8
34
Condition
Transition
register
filter
0
1
2
General status register model
Event Enable
register register
Keysight 8990B Programming Guide
Summary
bit