AMETEK SFA Series Ethernet Programming - Manual (Page 74)

SCPI Command Operation SG Series Programming
6-2 M550129-03 Rev K
Table 6-1. SCPI Status Byte
Bit Hex Value Description
0 0x01 Not used.
1 0x02 Protection Event Status flag. Indicates the selected protection
event occurred.
2 0x04
Error/event queue message available. Set when any error/event is
entered in the System Error Queue. It is read using the
SYSTem:ERRor? query.
3 0x08 Questionable Status flag. Indicates the quality of the current data
being acquired. This bit is not used.
4 0x10 Message available (MAV). Indicates a message is available to
read via serial or Ethernet.
5 0x20 Standard Event Status Register (ESR). Summary bit for the ESR.
Set when any of the ESR bits are set and cleared when the ESR is
read.
6 0x40
Request Service flag (RQS) for serial polling or Master Summary
Status (MSS) in response to *STB? If service requests are enabled
(with the *SRE command), this bit represents the RQS and will be
sent in response to a serial poll, then cleared. If RQS is not
enabled, the bit represents the MSS bit and indicates the device
has at least one reason to request service. Even though the device
sends the MSS bit in response to a status query (*STB?), it is not
sent in response to a serial poll. It is not considered part of the
IEEE-488.1 Status Byte.
7 0x80
Operation Status flag. Indicates the current operational state of the
unit. This bit is not used.