Agilent Technologies E1441A STATus, PRESet, QUEStionable :CONDition?, QUEStionable :EVENt?

STATus

	The STATus subsystem reports the bit values of the Questionable Data/Signal
	Register. It also allows you to unmask the bits you want reported from the Standard
	Event Register and to read the summary bits from the Status Byte Register.
	The Questionable Data/Signal Register group consists of a condition register, and
	event register and an enable register. The commands in the STATus:QUEStionable
	subsystem control and monitor these registers.
Subsystem Syntax	STATus
	:PRESet
	:QUEStionable
	[:EVENt]?
	:CONDition?
	:ENABle <unmask>
	:ENABle?

Comments • The STATus system contains four registers, two of which are under IEEE

488.2control; the Standard Event Status Register (*ESE?) and the Status Byte Register (*STB?). The Operational Status bit (OPR), Service Request bit (RSQ), Standard Event summary bit (ESB), Message Available bit (MAV) and Questionable Data bit (QUE) in the Status Byte Register (bits 7, 6, 5, 4 and 3 respectively) can be queried with the *STB? command. Use the *ESE? command to query the "unmask" value for the Standard Event Status Register (the bits you want logically OR'd into the summary bit). The registers are queried using decimal weighted bit values. See Figure 3-1 on page 119.

:PRESet

STATus:PRESet command affects only the enable register by setting all enable register bits to 0. It does not affect either the "status byte" or the "standard event status". PRESet does not clear any of the event registers.

:QUEStionable :CONDition?

STATus:QUEStionable:CONDition? returns a decimal-weighted number representing the bits set in the Questionable Data condition register.

:QUEStionable [:EVENt]?

STATus:QUEStionable[:EVENt]? returns a decimal-weighted number representing the bits set in the Questionable Data/Signal Register's event register. This command clears all bits in the event register when executed.

Chapter 3 Agilent E1441A SCPI Command Reference 117