Hitachi 902 Service Manual page 398

The text size (number of transferred words between STX code and end code) is
selectable between the two given below.
NOTES: 1. The end code character is settable up to four characters. So
calculate the maximum number of transferable channels according to
the expression shown below. (Fractions are rounded down and a
numerical value '48' indicates the total byte count of fixed length n in
Table 6-4.) Text size: 256 or 512 bytes
Maximum number of transferable channels <
2. In batch communication in the 256-byte mode, data is sent in up to
five texts for each sample.
In this case, the analyzer sends the first text and then the next one
soon after reception of the MOR frame from the host.
3. The total number of analytical data to be transferred is variable
according to the number of specified channels.
4. When ISE data or serum indexes extend into the next text, they are
set in it for transfer.
5. When the absence of ISE unit is set on the system setting screen or
by the DIP switch, the analytical data of ISE tests will not be sent.
1) Channel count (3 characters)
The number of channels to be transferred in one text is sent.
2
10 10
NOTE: The analyzer transfers data for up to 36 channels in both
2) Analytical data 1 to n (10 characters each)
2
10 10
Transfer sequence
1 0
10
Channel count (right-justified)
real-time communication and batch communication.
When including serum indexes (three tests of lipemia,
hemolysis and icterus), electrolytes (three tests of Na, K
and Cl) and calculation tests (8 tests), data for up to 50
channels is transferable.
1 0 5
10 10
...........................
16 - 31
Text size − 48
10
Example: "bb1" or "001"
0 0
10 10
Data alarm (1 character)
Measured value (6 characters)
Channel No. (3 characters),
right-justified
"b10"