Transfer Of Analytical Data; Transmission Procedure In Normal Case; Transmission Procedure In Special Case - Hitachi 902 Service Manual

Transfer of Analytical Data (analyzer → host)
(4)
The analyzer can send analytical data to the host only when the host has transferred the
MOR frame to the analyzer.
(a)

Transmission procedure in normal case

Analyzer
HOST
Response from analyzer
Frame A
FR1 to END
Response from host
Frame B
REP
MOR
REC
SUS
SPE
RES
(b)

Transmission procedure in special case

Even if the host sends any other frame than MOR while the analyzer is transferring
a sample having 2 or more tests to the host, the analyzer responds to the relevant
frame and resumes sending from a succeeding text upon receiving the MOR frame.
Transfer sequence
Analyzer
HOST
Effect of this system: (1)
Transfer sequence
ANY
A
MOR
Positive response
Analytical data (including calibration result and absorbance data in entire
reaction process)
When text in A is abnormal
To receive analytical data next time as well
To avoid reception of analytical data next time
To suspend communication
To specify test selection
To request a specific sample
FR1
ANY
MOR SPE
No delay for SPE
(2) Identifiable by host because sample identifying
information is provided for each text
16 - 13
B
Description
Description
Same sample
FR2 END
MOR
MO
R