Atten ATM3500A, Руководство пользователя

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About the Status Byte
The conditions from other status registers will be reported by the
status byte summary register. The query data, waiting in the
multimeter’s output buffer, is reported immediatedly through the
“message available” in bit 4. Besides, bits are not latched in the
summary registers. In addition, to clear an event register will clear the
according bits in the status byte summary register. And to read all
messages in the output buffer, including all pending queries, will clear
the message available bit. The following list shows the definition of
each bit.
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