1269 User Manual
Using The Enhanced Monitoring System 4-35
logically ANDed with the contents of the Standard Event
Status Register (see the *ESR? query description). If any
bits of this AND operation are set, then bit 5 of the Status
Byte is set. That is:
bit 5 of Status Byte = (bit 0 of ESE AND bit 0 of ESR)
OR
(bit 1 of ESE AND bit 1 of ESR)
OR
(bit 2 of ESE AND bit 2 of ESR)
OR
(bit 3 of ESE AND bit 3 of ESR)
OR
(bit 4 of ESE AND bit 4 of ESR)
OR
(bit 5 of ESE AND bit 5 of ESR)
OR
(bit 6 of ESE AND bit 6 of ESR)
OR
(bit 7 of ESE AND bit 7 of ESR)
where:
ESE is the value as set by the *ESE command
ESR is the value which may be read with *ESR?
query
Bit 5 of the Status Byte is also known as the “Event
Summary Bit”, or ESB. The *ESE command has the
format:
*ESE <ESE value>
where the “<ESE value>” is an integer numeric value in the
range 0 to 255.
*ESE? Query
This query reads the value presently programmed for the
“Standard Event Status Enable Register”. This reads the
value as programmed by the “*ESE” command.
*ESR? Query
This query reads the value of the “Standard Event Status
Register”. Each bit of this register indicates a true/false
status condition. When the bit is set, the condition is
TRUE; when the bit is cleared, the condition is FALSE. The
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