Hitachi 902 - Termination and Restart of Communication

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16.4.4 Termination and Restart of Communication
Table 16-5 shows the conditions for termination and restart of this protocol.
Table 16-5 Termination and Restart of Communication
O: Communication stopped ×: Communication continued
Conditions for Termination
Real-time
Communication
Batch
Communication
Restart of Communication
Change from [YES] to [NO] or
in [NO] for host communication
parameter on start condition
screen
× × Change from [NO] to [YES] for
host communication
parameter. Restart is made
with previous contents of
communication all canceled.
Occurrence of send/receive
time-out error
O O Same as above (NOTE 2)
Occurrence of hardware error
alarm related to communication
O O Same as above (NOTE 2)
Occurrence of FD read error
during sending of analytical
data to host
O × Remaining samples in
specified range are not sent.
On restart, samples in newly
specified range are sent.
Specification of stop through
screen during batch sending of
analytical data to host
O ×
(NOTE 1)
Same as above
Occurrence of FD read error
during transfer of analytical
data for specific sample
request to host
O O Relevant sample alone is
canceled.
Detection of error in text such
as BCC error or discrepancy in
end-of-data code between
analyzer and host
O O 
Occurrence of E.STOP-level
alarm on analyzer side
O O 
NOTES: 1. Transfer of measurement result data is stopped regardless of the kind of sample (routine
or control).
2. Retry processing is executed up to the specified number of retry times. In excess of the
specified number, communication is stopped.