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Pressure Systems, Inc. NetScanner™ System (9016, 9021, & 9022) User’s Manual
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stream is restarted, the returned sequence numbers will resume with the next number
at the point of the stream’s termination. The sequence numbers will not restart at
one (1) if a scan list is temporarily stopped and then restarted without reconfiguring
the stream. A “limited” stream will terminate once this sequence number equals the
requested number of packets for the stream. If a “limited” stream is restarted after
expiring, it will restart at sequence number 1.
For periodic hardware-triggered streams, that are never suspended and resumed after
being initially enabled, the sequence number may also serve as a “relative” time
stamp if the period (in milliseconds) of the hardware trigger is known.
If a special sub-command (ii=05) is used to select the content of a stream, other
binary status data may immediately follow the binary stream header and precede the
default Pressure EU Data (if selected). Other special acquired data groups (per
selected channel) may follow or replace the Pressure EU Data. Each datum group
in each packet will be ordered from highest channel number requested to lowest
channel number requested. Each datum (dddd) will be output per the format code
specified when the stream was configured (by sub-command “00” or combination
of “00” and “05”).
Example:
! Start all the streams configured in the previous example:
“c 01 0”
Read response:
“A”
Soon after the response is received, the requested data stream packets will begin
arriving in the host at a quantity, content, and rate determined by each stream’s own
particular current configuration (per both the “00” and “05” sub-commands).