MGR10 A/B/C - Revision : I (for 7.0 software revision)
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Register.
Message Available Summary (bit 4)
This bit indicates that the Output Queue contains response data. It is cleared by reading all data
from the output queue or, the output queue being flushed by a Query Error or, by the *CLS
command. This works for IEEE only - the bit is always 0 for RS-232.
This bit is particularly useful for synchronising data transfers from the instrument. The application
programme can poll the bit to detect when a measurement is complete and data is available.
Alternatively, for IEEE, the corresponding enable bit in the Service Request Enable Register can
be set so that a Service Request (SRQ) interrupt will occur.
Standard Event Summary (bit 5)
This bit Indicates that an enabled Standard Event has occurred. It is cleared either by reading the
Standard Event Status Register, by clearing relevant bits in the Standard Event Enable Register, or
by the *CLS common command.
Request for Service/Master Summary Status (bit 6)
The meaning of this bit depends on how the Status Byte Register
is read. This works for IEEE only
- the bit is always 0 for RS-232.
RQS
This bit forms part of the IEEE-488.1 Service Request function and is valid only during Serial Poll.
It indicates that the instrument is requesting service. It is set when an enabled bit in the Status Byte
Register becomes set and cleared by a Serial Poll. Assuming no ‘new reason for service’ occurs,
the bit will be set for one Serial Poll and clear for subsequent Polls. RQS is also cleared if the
reason for service disappears, for instance when a status register is read.
MSS
When the Status Byte Register is read with *STB? this bit indicates that an enabled bit in the
Status Byte Summary Register is set. The bit is cleared when all summary-messages are clear.
Operation Summary Message (bit 7)
This bit is set when an enabled Operation event has occurred. It is cleared by reading the Operation
Event Register or by clearing the relevant bits in the Operation Enable Register.
