Basic Control Procedure - Hitachi 902 Service Manual

Basic Control Procedure

[Events on analyzer side]
[RUN] (highlighted) →
[CANCEL] for host
communication
parameter on start
condition screen
First data transfer for
sample No. 1
Final data transfer for
sample No. 1
Analytical data transfer for
sample No. 5
[RUN] (highlighted) →
[CANCEL] for host
communication
parameter on start
condition screen
Analyzer
ANY
ANY
SPE
SPE
SPE
ANY
FR1
END
ANY
ANY
ANY
END
END
ANY
ANY
SPE
SPE
FR1, END
RES
REP
16 - 15
HOST
[Events on host side] [State of communication]
MOR
MOR
SPE
SPE
SPE
MOR
Analytical
data request
MOR
MOR
MOR
RES
Analytical data
request for
MOR
sample No. 5
REP
Resending
request
MOR
MOR
MOR
Contents of Each Frame
Contents
TS request for one specific sample
TS response for one specific sample
Analytical data transfer
Analytical data request for specific sample
Resending request
Communication start
TS request
Analytical
data transfer
Neither analyzer
nor host has data
to be transferred.
Communication stop