Difference In Transfer Between Sus And Rec Frames; In Sending Sus Frame From Analyzer - Hitachi 902 Service Manual

Difference in Transfer between SUS and REC Frames

(a) In sending from host
Same text
FC=2
Analyzer
HOST
Sample No. = 1
FC=2
Analyzer
HOST
(b)

In sending SUS frame from analyzer

Example 1:
ANY
Analyzer
HOST
Example 2:
ANY
Analyzer
HOST
Text not followed
(occurrence of error)
Transfer sequence
ANY
FC=2
SUS
MOR
Sample No. = 1
ANY FC=END
REC
MOR
REP frame is returned for ANY frame from the analyzer.
Transfer sequence
SUS
REP REP
Other than REP
(Example 1)
An error occurred on response to ANY frame from the analyzer.
Transfer sequence
SUS
Other than REP
(including occurrence of error)
(Example 2)
(FC: Frame
character)
FC=END
Same text is transferred after
the first MOR reception.
MOR
After MOR reception, not the same text
but the next analytical data text is
transferred. If text FC = 2 is the same
as FC = END, the analytical data text
of the next sample is transferred.
SPE
SPE
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