Combi Scan® 100 serial line interface - Alere

State: 20.12.2004
CombiScan 100 Serial Line Interface
Combi Scan 100 serial line interface
1. Introduction________________________________________________________________ 2
2. Hardware features___________________________________________________________ 3
3. Unidirectional mode _________________________________________________________ 4
4. Bidirectional mode __________________________________________________________ 5
5. Example___________________________________________________________________ 8
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Serial 4 Line Interface CombiScan 100
Combi Scan 100 serial line interface
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 2 of 8
1. INTRODUCTION
The CombiScan100 can be connected to a PC or to any Host device through the USB.
There are two modes of communication: unidirectional and bidirectional.
The mode can be chosen under the MENU/SETUP/OUTPUT/SERIAL menu:
PC - unidirectional
NETW. - bidirectional
Before using the USB port you must be sure that the appropriate driver is installed on your
system. The driver software can be found on the software CD of the Combi Scan 100.
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 3 of 8
2. HARDWARE FEATURES
CombiScan 100 Serial Serial Line Interface
Combi Scan 100 serial line interface
The cable is a standard USB cable which contains an A type connector on one end and a B type
on the other
The parameters of the communication:
Parameter Value
Baudrate Depends on the
serial speed setting
of the Combi Scan
100
Databits 8
Stop bits 1
Parity No
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Serial 4 Line Interface CombiScan 100
Combi Scan 100 serial line interface
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 4 of 8
3. UNIDIRECTIONAL MODE
This mode is recommended to whom, who simply want to send data to a PC, using a simple
terminal program.
The mode can be set by the MENU/SETUP/OUTPUT/SERIAL/PC setting.
The reader sends out the same character string as which is printed out in this mode.
The sending is in ASCII code, 24 characters/line, in CR format.
The sending does not depends on whether the data flow is received or not.
The sending is always turned on and not depend on whether the printer is switched on or off.
The results will send up right after the measurement or if you read out the data from memory.
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 5 of 8
4. BIDIRECTIONAL MODE
CombiScan 100 Serial Serial Line Interface
Combi Scan 100 serial line interface
Use this mode to connnect the instrument to the laboratory network.
In this mode, the stored reports can be sent to the Host, in controlled, bidirectional data flow.
The mode can be set by the MENU/SETUP/OUTPUT/SERIAL/NETW setting.
The reader will send up the result right after the measurement or if you read out data from the
memory.
The communication is initiated by CombiScan100.
The protocol of the data flow is the following:
From Memory
Send
End of
Msg ?
n
Prepare next
Message:
ENQ or FRAME
RTC = 0
Send Message
Wait for Host
Answer
Answer from
Host
y
TimeOut
ACK
NAK
else
Send EOT
n y
RTC == Max
RTC++
Delay DT sec
CommOK
CommError
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Serial 4 Line Interface CombiScan 100
Combi Scan 100 serial line interface
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 6 of 8
CombiScan100 Host Comment
ENQ Combi Scan 100 wants to send
FRAME Report of a measurement
ACK Host can receive
NACK Host can not receive
Others
Retry count (RTC), max =5
delay time (DT)=15 sec
time out =15 sec
The structure of a FRAME
Everything is in ASCII, except STX and ETX ( pl 0 = 30h)
Name Length ( ASCII
character)
Comment
STX 1 ‘Start of text‘ - Frame start
M 1 Identification mode : 0 - Sequence number
1 - Patient ID
No 3 The sequence number in 3 digits
Pat.ID 15 The Patient ID, if it was given by the barcode reader or
by a keyboard,
else SPACE
Time 10 Date of the measurement in yyyy/mm/dd format
Strip type 1 The code result conversion can be done based on it
Result 12 Result of the measurement by PADs
ETX 1 end of the information
CHK 2 checksum= XOR for the parts within STX and ETX
The strip-type code is always 1
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 7 of 8
Combi Scan
CombiScan 100 Serial Serial Line Interface
100 serial line interface
The PADs are identified in the ‘Result’ string by the following order:
position 1 2 3 4 5 6 7 8 9 10 11 12
PAD BIL UBG KET ASC GLU PRO BLD pH NIT LEU SG empty
(In the case of 10 pad strips the 4 th parameter result is invalid)
The value of the results are determined according to the following:
neg, norm, SG = 1.000, pH = 5 0
+, SG = 1.005, pH = 6 1
++, SG = 1.010, pH = 7 2
etc.... etc...
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Serial Line Interface CombiScan 100
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Analyticon Biotechnologies AG state: 20.12.2004
35104 Lichtenfels, Germany page 8 of 8
5. EXAMPLE FOR THE RESULT FRAME
URINALYSIS CombiScan100
2004/12/17 15:07
No: 1.
Pat. ID:John Smith
*BIL 15 umol/l
UBG norm
KET neg
ASC neg
GLU norm
*PRO 5.0 g/l
ERY neg
pH 6
*NIT pos
LEU neg
SG 1.000
The message frame is:
Combi Scan 100 serial line interface
STX Start character of the message
0 Identification number
001 Serial number (3 characters long)
John Smith Patient ID (15 character)
2004/12/17 Date, always yyyy/mm/dd format
1 Strip type (always 1)
100003011000 The result (12 character long)
ETX The end of character frame
CHK Cheksum (2 characters)
The frame in hex format:
02 00 30 30 31 4A 6F 68 6E 20 53 6D 69 74 68 20 20 20
20 20 32 30 30 34 2F 31 32 2F 31 37 31 31 30 30 30 30 33
30 31 31 30 30 30 03 30 37
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