Specifications Of Communication Trace; Trace Data Storage Timing; Transfer Of Analytical Data Alone; Overview - Hitachi 902 Service Manual

16.8 Specifications of Communication Trace

16.8.1 Overview

This is an auxiliary function for outputting the stored data onto the printer as a logging in order
to check the contents of communication between the analyzer and host. This function is
selectable on the communication parameter screen.
16.8.2 Trace Data
The time point of communication execution, the direction of communication and the contents of
message are stored.
The data to be stored differs between the cases below.
(1) In Normal Communication
Frame character, function character and sample information are stored. However, only
frame character and function character are stored for the text without sample information
(NOTE).
NOTE: Storage is made according to the following rule.
1)
2)
3)
(2) Upon Occurrence of Any Error During Communication
The details of the error and all characters up to occurrence of the error are stored.
However, if send time-out occurs during sending from the analyzer to host, only frame
character, function character and sample information are stored the same as in normal
communication (in (1) above).

16.8.3 Trace Data Storage Timing

(1) In any other than Transfer of Analytical Data Alone
(a) The trace function is activated after sending a text from the analyzer and receiving a
corresponding text from the host (after receiving the end-of-data code).
(b) The trace function is activated upon change from [YES] to [NO] for communication
trace on the communication parameter screen.
(2)

Transfer of Analytical Data Alone

The trace function is activated on completion of transferring the text sent from the
analyzer (after sending the end-of-data code).
Text without function character
Frame character and one character after it (2 characters in total)
Photometry-assay calibration text
Frame character, function character, channel No., STD count and
calibration alarm (8 characters in total)
ISE calibration text
Frame character, function character and ISE type (4 characters in total)
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