Table 4.21 Status Byte Summary Register - Xantrex XDC 10-600 Operating Manual

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
0
1
2
3
4
5
6
7
Error/Event Queue (ERR)
This bit it TRUE if any errors are present in the Error/Event Queue.
Release 3.0
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Bit Weight Bit Name
1 Reserved
2 Reserved
4 Error/Event
Queue (ERR)
8 Questionable
Status Register
(QSR)
16 Message
Available (MAV)
32 Standard Event
Status Bit
Summary (ESB)
64 Request Service
(RQS)
Master Status
Summary (MSS)
128 Operation Status
Register (OSR)
Remote Operation
SCPI Commands for Digital Interfaces
Description
Set if any errors are present in
the Error/Event queue.
Set if any bits are set in the
Questionable Status Event
register.
Indicates whether the output
queue is empty. MAV is TRUE
if the device is ready to accept
a request from the controller.
A summary of the Standard
Event Status Register.
MSS indicates that the device
has at least one reason for
requesting service.
Present if a bit is set in the
Operation status register.
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