AMETEK M130 - Manual (Page 52)

IEEE 488.2 and SCPI Command Operation Sorensen Ethernet Option
3-2 M130/131 Programming Manual
Table 3-1 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 in the
GPIB or Ethernet output queue. Cleared after the GPIB or Ethernet
output buffer is read.
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.
3.2.2 S
TANDARD
E
VENT
S
TATUS
R
EGISTER
(ESR)
• To read the Standard Event Status Register (ESR), use the *ESR?
command.
• To clear the ESR, either read this register or issue the *CLS command.
• To enable corresponding ESR bits to be summarized in the summary bit
of the SCPI Status byte, issue the *ESE (Standard Event Status Enable
Register) command.