108
bit 4: Message Available
The Message Available MAV bit becomes set when any message is
ready to be transmitted over the GPIB interface (not the RS-232 inter-
face). Once the message is sent, the MAV bit is cleared. A GPIB device
clear command will clear the output queue and, as a result, this bit.
NOTE:
After a query is issued over the GPIB interface this bit should be checked by
means of a serial poll before attempting to read the query response.
bit 3: New Valid Data Available
The New Valid Data Available Channel B (NVDA) bit becomes set when
a new reading has been taken on channel B that is not overrange, did
not saturate the detector, did not cause a data error and was not taken
while ranging. It is cleared by the R?, R_A?, RWS? or RWS_A? queries.
bit 2: New Data Available
The New Data Available Channel B (NDA) bit becomes set when a new
reading has been taken on channel B. It is cleared by the R?, R_A?,
RWS? or RWS_A? queries.
bit 1: New Valid Data Available
The New Valid Data Available Channel A (NVDA) bit becomes set when
a new reading has been taken on channel A that is not overrange, did
not saturate the detector, did not cause a data error and was not taken
while ranging. It is cleared by the R?, R_A?, RWS? or RWS_A? queries.
bit 0: New Data Available
The New Data Available Channel A (NDA) bit becomes set when a new
reading has been taken on channel A. It is cleared by the R?, R_A?,
RWS? or RWS_A? queries.
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