User`s manual

Agilent E1330B Digital I/O Module Command Reference 93
Chapter 5
STATus Subsystem
The STATus subsystem controls the SCPI-defined Operation and Questionable
Signal Status Registers and the Standard Event Registers. Each is comprised of a
Condition Register, an Event Register, an enable mask, and transition filters.
Each Status Register works as follows: when a condition occurs, the appropriate bit
in the Condition Register is set or cleared. If the corresponding transition filter is
enabled for that bit, the same bit is set in the associated Event Register. The contents
of the Event Register and the enable mask are logically ANDed bit-for-bit; if any bit
of the result is set, the summary bit for that register is set in the status byte. The status
byte summary bit for the Operation Status Register is bit 7; for the Questionable
Signal Status Register, bit 3; and for the Standard Event Register, bit 5.
Syntax STATus
:OPERation
:CONDition?
:ENABle
:ENABle?
[:EVENt]?
:PRESet
:QUEStionable
:CONDition?
:ENABle
:ENABle?
[:EVENt]?
Note This subsystem is provided for compatibility. The Digital I/O module does not use
the Operation Status or Questionable Status Registers.