Keysight U2722A Programmer's Reference Manual page 122

13 IEEE-488.2 Common Commands
Remarks
– The following table lists the bit definitions for the Status Byte register.
Bit number
0 Not Used
1 Not Used
2 Error Queue
3 Questionable Status Event
4 Message Available
5 Event Status Byte summary
6 Master Status summary
(Request for Service)
7 Operation Status Event
– Use the <enable_value> parameter to specify which bits will be enabled. The
– The Status Byte Enable register will be cleared when you execute the *SRE 0
Returned Query Format
<NR1>
The query command reads the enable register and returns a decimal value that
corresponds to the binary-weighted sum of all bits set in the register.
For example, if bit 3 (decimal value = 8) and bit 7 (decimal value = 128) are
enabled, the query command will return "+136".
122
Decimal value
1
2
4
8
16
32
64
128
specified decimal value corresponds to the binary-weighted sum of the bits
you wish to enable in the register. For example, to enable bit 3 (decimal
value = 8) and bit 6 (decimal value = 64), the corresponding decimal value
would be 72 (8 + 64).
command.
Definition
Always zero.
Always zero.
There is at least one error code in the error queue.
One or more bits are set in the Questionable Event register (bits must be
enabled in the enable register).
Data is available in the instrument's output buffer.
One or more bits are set in the Standard Event register (bits must be
enabled in the enable register).
One or more bits are set in the Status Byte register (bits must be enabled
in the enable register). Also used to indicate a request for service.
One or more bits are set in the Operation Event register (bits must be
enabled in the enable register).
Keysight U2722A/U2723A Programmer's Reference