A-3
2. COMMUNICATION PROTOCOL AND MESSAGE FORMAT
Section 2.1 describes the communication procedures between the skyla
TM
Clinical
Chemistry Analyzer and an external computer. Section 2.2 includes detailed information
of message bodies sent to the external device.
2.1 COMMUNICATION PROCEDURES
Below are some commands which will be used during communication procedures.
Command (One Byte)
Description
0x01
Connect command. This is a command for creating
connections. This command will only be sent out via the HB1
Clinical Chemistry Analyzer side.
0x04
Close command. This is a command for closing connections.
This command will only be sent out via the HB1 Clinical
Chemistry Analyzer side.
0x06
Acknowledge command. This is a confirmation command that
the external computer responds with when it receives
commands issued from the HB1 Clinical Chemistry Analyzer
to indicate that there is no problem in reception.
0x15
Negative Acknowledge command. This is a negative
confirmation command that the external computer responds
with when it receives connection or close commands issued
from the HB1 Clinical Chemistry Analyzer to indicate that
there are issues.
The communication procedures are listed below:
(1)
The skyla
TM
Clinical Chemistry Analyzer sends the connect command to the external
computer. Upon receiving the connect command, the external computer must respond
with the acknowledge command. The skyla
TM
Clinical Chemistry Analyzer waits one
second for the external computer to respond with the acknowledge command. If the
external computer does not respond with the acknowledge command, the skyla
TM
Clinical Chemistry Analyzer will send the connect command to the external
computer again. If the skyla
TM
Clinical Chemistry Analyzer still does not receive the
acknowledge command from the external computer, the skyla
TM
Clinical Chemistry
Analyzer will report an error message if the Export to RS232 function was triggered
manually from the Recall function. Test results will also be exported to RS232 after
analysis completion. In this case, no error message is exported.
(2) The external computer must respond to the acknowledge command.
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