Xantrex Technology XDC manual Error/Event Queue ERR, Status Byte Summary Register

Remote Operation

SCPI Commands for Digital Interfaces

Status Byte

The Status byte register contains the STB and RQS(MSS) messages as defined in

488.1.The user can read the status byte register using a 488.1 serial poll or the 488.2 *STB? common command. If the user sends a serial poll, bit 6 will respond with Request Service (RSQ). The value of the status byte is not altered by a serial poll.

The *STB? query causes the device to send the contents of the Status Byte Register and the Master Summary Status (MSS) summary message. The *STB? query does not alter the status byte, MSS, or RQS.

Table 4.21 Status Byte Summary Register

Bit	Bit Weight	Bit Name	Description
0	1	Reserved
1	2	Reserved
2	4	Error/Event	Set if any errors are present in
		Queue (ERR)	the Error/Event queue.
3	8	Questionable	Set if any bits are set in the
		Status Register	Questionable Status Event
		(QSR)	register.
4	16	Message	Indicates whether the output
		Available (MAV)	queue is empty. MAV is TRUE
			if the device is ready to accept
			a request from the controller.
5	32	Standard Event	A summary of the Standard
		Status Bit	Event Status Register.
		Summary (ESB)
6	64	Request Service	MSS indicates that the device
		(RQS)	has at least one reason for
		Master Status	requesting service.
		Summary (MSS)
7	128	Operation Status	Present if a bit is set in the
		Register (OSR)	Operation status register.

Error/Event Queue (ERR)

This bit it TRUE if any errors are present in the Error/Event Queue.

Release 3.0 155