Agilent Technologies HP 54601B Especificaciones Pagina 65

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Status Reporting
IEEE 488.2 defines data structures, commands, and common bit
definitions for status reporting on the interface. There are also
instrument-defined structures and bits.
The bits in the status byte act as summary bits for the data structures
residing behind them. In the case of queues, the summary bit is set if
the queue is not empty. For registers, the summary bit is set if any
enabled bit in the event register is set. The events are enabled with
the corresponding event enable register. Events captured by an event
register remain set until the register is read or cleared. Registers are
read with their associated commands. The *CLS command clears all
event registers and all queues except the output queue. If *CLS is sent
immediately following a program message terminator, the output
queue is also cleared.
6–2
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