Agilent Technologies 4349B, Руководство пользователя

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4349B
Standard Operation Status Group
The 4349B provides two standard operation status groups|operation status register group and
questionable status register group|which can be accessed using STATus subsystem commands .
(Refer to STATus subsystem in \GPIB Commands".) If you are beginner , you will rarely need
to use this group . The individual bit assignment of these registers are given \Operation Status
Register" and \Questionable Status Register" later in this section.
Each group includes a condition register , an event register , and an enable register .(Illustrated in
Figure 5-5.)
The condition register reects the internal states of 4349B . So each time the 4349B 's condition
is changed, its condition bit is changed from \0" to \1", or from \1" to \0".
The event register's bit corresponds to a condition register's . The transition lter reports to the
event register that an event (a bit changed from \1" to \0") has taken place in the condition
register .
The enable register enables the corresponding bit in the event register to set the status
summary bit, bit 7, or bit 3 of the status byte .
Figure 5-5. Standard Operation Status Group Structure
5-36 GPIB Reference