TECHNICAL INFORMATION
B-4 Sysmex KX-21 Operator’s Manual -- Revised October 1998
4) Transmission errors
If the KX-21 detects a transmission error, the data transmission is canceled and an
error message is displayed. Re-transmission of the data ([1] key) or cancellation of the
transmission ([3] key) can be selected. Transmission errors occur in the following
situations.
• The computer is off line.
• The control signal DSR is off.
• After the data is transmitted, there is no response from the computer in 15 seconds.
(Class B only)
• After the data is transmitted, other than ACK or NAK is sent from the computer.
(Class B only)
• After the data is transmitted, the fourth NAK is sent. (Class B only. The KX-21
resends the data automatically up to 3 times when NAK is sent.)
5) Timing, subject, and content of transmission
Serial interface
↓
Host computer
Normal analysis Analysis data (A)
Quality control QC data (A)
Table B-1-3: Content of Transmission
• Analysis data includes the date, sample ID No., 18-parameter data, and the flag.
• QC data is
X
or L-J data.
• The setting of the connecting device is changed in the setting program.
2. Text Format
The following two types of formats are used for computer output.
• K-1000: Format for connecting to the host computer
• K-DPS: Special format for connecting to K-DPS
NOTE: • K-1000 format is selected at the time of shipping from the factory.
The details of K-1000 format are as follows.
• K-1000 format
K-1000 format has two formats; one is "analysis data format" for output of the
sample data, and the other is "QC data format" for output of the QC data. They
differ in length and content of the text. (They are distinguished by the sample
distinction code.)
The text distinction code II is fixed at "1".
However, when the text exceeds 256 bytes in a future modification, the text is
divided into 2 or more blocks. The number in text distinction code II shows the
order of the blocks. The ETB (17 H) is not used.
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