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AU680/AU480
Online Specifications
1. Jan. 2011

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Contents
1. Function Outline ................................................................................................................................3
2. Basic Specifications...........................................................................................................................4
2.1 Transmission Method .................................................................................................................4
2.2 Transmission and Reception Codes...........................................................................................4
2.3 Basic Message Format ..............................................................................................................5
3. Communication Message Format .....................................................................................................7
3.1 Common Items...........................................................................................................................7
3.2 Sample Information Request-related Messages ........................................................................7
3.3 Sample Information Response-related Messages......................................................................8
3.4 Aalysis Data-related Messages................................................................................................10
3.5 Contents and Format of the Items in a Message......................................................................14
3.6 Relation between Real-time/Batch and Replacement Messages.............................................21
4. Communication Protocol for Subordinate Layers ............................................................................22
4.1 Message Transmission and Reception Procedure (on the AU680/AU480 side) ......................22
4.2. Transmission and Reception Time-out/Timing .........................................................................26
5. Communication Protocol for the Host Layer....................................................................................29
5.1 Sample Information Reception Processing ..............................................................................29
5.2 Test Data Transmission Processing .........................................................................................34
5.3 Other Special Notes .................................................................................................................36
6. Connection Specifications ...............................................................................................................37
6.1 I/O Signals and Connection Terminals .....................................................................................37
6.2 Signal Level .............................................................................................................................37
6.3 Connection Cable.....................................................................................................................37
6.4 Connector Shape .....................................................................................................................37
A.1 Reference: List of error flag .........................................................................................................38
A.2 Reference: Character Code tabel ................................................................................................40
A.3 Reference: Online condition parameters .....................................................................................41
A.4 AU680/AU480 online condition parameter sheet.........................................................................43
A.5 List of alarm related to online messages .....................................................................................45

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1. Function Outline
(1) Real-time online functions
The following processing can be performed during measuring (real-time) on the AU680/AU480
side.
A. Reception of sample information from an external computer.
B. Transmission of test data to an external computer.
(2) Batch online functions
The following processing can be performed at the [Test requisition] screen and the [Sample
manager screen] on the AU680/AU480 side.
A. Reception of sample information from an external computer.
B. Transmission of stored analysis data to an external computer.
(3) Online conditions setting function
The following conditions can be set at the [Online] screen on the AU680/AU480 side.
A. Communication protocol for host layer and subordinate layers
B. Sample information message format
C. Analysis data message format

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2. Basic Specifications
2.1 Transmission Method
Item Contents
Line type
RS-232C
Synchronization
method
Start-stop synchronization
Data transmission
mode
Half-duplex mode
Transmission speed
4800 bps, 9600 bps
Start bit 1 bit
Character length 7 bit / 8 bit
Parity check None / even/odd
Stop bit 1 bit/2 bit
Total 9 to 12 bit
Character
composition
(The above conditions can be set at the [Online] screen.)
Class A
Type with information transmission at fixed intervals from the
transmission side to the reception side.
Verification method
Class B
Type performing information exchange using affirmative
acknowledge (ACK) and negative acknowledge (NAK) to verifying
the status of the other party.
Used channel
1 channel
Class A None
Retry count
Class B
0 to 3 times (The above conditions can be set at the [Online]
screen.)
2.2 Transmission and Reception Codes
Item Contents Value range
7 bit code 20H to 7EH
8 bit code
Data code
1 byte code
20H to 7EH
A1H to DFH
Message start/end code 01H to 1FH
ACK 06H
NAK 15H
Control code
BCC 00H to FFH

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2.3 Basic Message Format
(1) Message composition
(1) Message composition
Contents
Name
Number
of
digits
Value
range
Meaning
Remarks
1) Message start
code
1/2 01H to 1FH Code indicating the start of the message
Normally 1 digit
(02H[STX])
R□ Sample information request-related message identifier
RB Sample information request start
RΔ
*1
Normal sample (Routine/Emergency/STAT) request
RH Repeat run sample (Routine/Emergency/STAT) request
Rh
Automatic repeat run sample
(Routine/Emergency/STAT) request
RE Sample information request end
AU680/AU480 →
External computer
S□ Sample information response-related message identifier
SΔ*
1
Normal sample (Routine/Emergency/STAT) information
response
SH
Repeat run sample (Routine/Emergency/STAT)
information response
Sh
Automatic repeat run sample
(Routine/Emergency/STAT) information response
SE Sample information response stop
External computer
→ AU680/AU480
D□ Analysis data-related message identifier
DB Analysis data transmission start
DΔ
*1
Normal sample (Routine/Emergency/STAT) data
DH Repeat run sample (Routine/Emergency/STAT) data
DR Reagent blank sample data
DA Calibration sample data
dΔ
*1
STAT quick output data
dH Repeat run STAT quick output data
DQ QC sample data
2) Message
distinction code
2
DE Analysis data transmission end
AU680/AU480 →
External computer
3) System No.
0/2 00 to 99
Number for distinction of the message transmission
source system by the external computer
4) Message data
According to each
message
Contents of each message
In case of variable length messages, a data
classification No. is added between the fixed part
(header) and the variable part. *
2
5) Message end
code
1/2 01H to 1FH Code indicating the end of the message
Normally 1 digit
(03H[ETX])
6) BCC (Block
Check
Character)
0/1 00H to FFH Exclusive OR of the characters composing 2) to 5)
*1: Δ indicates a space (20H).
*2: For variable length messages, refer to (2) Blocking.