Status Byte; Error/Event Queue (Err); Questionable Status Register Summary (Qsr); Table 5-9 Status Byte Summary Register - Xantrex Watt Series Programmable DC Power Supply XG 850 Operating Manual

Remote Operation

Status Byte

Table 5-9 Status Byte Summary Register

Bit Bit
Weight Bit Name
0 1 Reserved
1 2 Reserved
2 4 Error/Event Queue
(ERR)
3 8 Questionable Status
Register (QSR)
4 16 Message Available
(MAV)
5 32 Standard Event Status
Bit Summary (ESB)
6 64 Request Service (RQS) /
Master Status Summary
(MSS)
7 128 Operation Status
Register (OSR)

Error/Event Queue (ERR)

Questionable Status Register Summary (QSR)

5-28
The Status byte register contains the STB and RQS (MSS) messages as
defined in 488.1. You can read the status byte register using a 488.1 serial
poll or the 488.2 *STB? common command.
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.
This bit is TRUE if any errors are present in the Error/Event Queue.
This bit is TRUE when a bit in the Questionable Event Status Register is
set and its corresponding bit in the Questionable Status Enable Register is
TRUE.
Description
Reserved
Reserved
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.
Not Implemented / MSS indicates that the device has at
least one reason for requesting service.
Present if a bit is set in the Operation status register.
M370078-01