Nidek Medical TONOREFII User manual

INTERFACE MANUAL
INTERFACE MANUAL
November 2009
Pages in total: 52
XRKT2*RTZ001D/E
TONOREFII
TONOREFII
AUTO REF/KERATO/TONOMETER
AUTO REF/KERATO/TONOMETER
Mo
Model

NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan
(Manufacturer) Telephone:[phone]
Facsimile: [phone]
NIDEK CO., LTD : 3F Sumitomo Fudosan Hongo Bldg., 3-22-5, Hongo,
(Tokyo Office) Bunkyo-Ku, Tokyo 113-0033, Japan
Telephone:[phone]
Facsimile: [phone]
NIDEK INCORPORATED : 47651 Westinghouse Drive, Fremont, California 94539, U. S. A.
(United States Agent) Telephone:[phone]
Facsimile: [phone]
NIDEK S.A. : Europarc 13, rue Auguste Perret, 94042 Créteil, France
(EU Authorized Representative) Telephone: [phone]
Facsimile: [phone]

Table of Contents
I
1. OUTLINE OF COMMUNICATION. . . . . . . . . . . . . . . . . . . . 1
1.1 Types of Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2. RS-232C COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Outline of RS-232C Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.1.1 Outline of Communication Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.1.2 Communication Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.3 When the I/F MODE parameter is set to NIDEK. . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.4 When the I/F MODE parameter is set to NCP10 . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2.1 Command Format (with “NIDEK”). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2.2 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.2.3 CR (Carriage Return) Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.3 Communication Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
2.3.1 Interface between the TONOREF II and External PC. . . . . . . . . . . . . . . . . . . . . . .19
2.3.2 Flow of Sample Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
2.3.3 Sample program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3. LAN COMMUNICATION. . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1 Outline of LAN Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.1.1 Outline of communication function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.1.2 Communication sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
3.2 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
3.2.1 Folder configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
3.2.2 File format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
3.3 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
3.3.1 Basic format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
3.3.2 Data transmitted from the TONOREF II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
3.3.3 XML file data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
4. EXAMPLE OF RECEIVED DATA. . . . . . . . . . . . . . . . . . . 37
4.1 Example of Measured Data Received by PC . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
4.2 Sample Printout of KM Data when the I/F FORMAT Parameter is Set to
Short . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
4.3 Error Message Regarding the Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

:
II

1
1
1. OUTLINE OF COMMUNICATION
1.1 Types of Interfaces
In order to transmit the data measured by the TONOREF II to an external computer, the TONOREF II
comes equipped with the following interfaces:
RS-232C interface
LAN interface
In this Interface Manual, Section 2 describes the method of receiving measurement data from the
TONOREF II using the RS-232C interface, and Section 3 describes the method using the LAN inter-
face.

2
OUTLINE OF COMMUNICATION: Types of Interfaces

3
2
2. RS-232C COMMUNICATION
2.1 Outline of RS-232C Communication
2.1.1 Outline of Communication Function
In order to transmit the data measured by the TONOREF II to an external computer, the TONOREF II
comes standard with an RS-232C interface. This manual provides the method of receiving the mea-
sured data from the TONOREF II through this interface.
In this Interface Manual, Section 2 describes the method of receiving measurement data from the
TONOREF II using the RS-232C interface.
{Basic interface specifications
Because the Transmission system, Parity check, and Stop bit length are fixed as above, it is neces-
sary for the external computer to conform to these specifications.
1 Basic spec In accordance with RS-232C standards
2 Connector DIN 8-pin
3 Transmission method Asynchronous
4 Transmission system Half duplex
5 Baud rate 9600/4800/2400/1200 bit/sec
6 Bit length 8/7 bit
7 Parity check Odd parity
8 Stop bit 1 bit
9 Data code ASCII code
10 CR code YES (added)/ NO (Not added)

4
RS-232C COMMUNICATION: Outline of RS-232C Communication
{Cable connection
Connect between the port of the TONOREF II interface connector and the serial communica-
tion port (RS-232C) of the external computer with the above interface cable (Model: OPIF-11).
This interface cable allows the I/F MODE parameter to be set either to “Nidek” or “NCP10”.
Any connector of the external computer other than the one specified above (Dsub 9P) needs a con-
version adapter.
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External computer
Serial communication
port
(RS-232C)
TONOREF II
Interface connector
D-sub 9P (female) DIN 8P

5
RS-232C COMMUNICATION: Outline of RS-232C Communication
2
2.1.2 Communication Sequence
Two types of the transmission sequences, “NIDEK” and “NCP10”, can be selected by setting the I/F
MODE parameter.
With “NIDEK”, the transmission sequence is the same as the conventional transmission sequence.
With “NCP10”, press the button to transmit data. Because “NCP10” does not need complicated
controls such as the DTR control, DSR control, RS command control, SD command control, etc., it
allows easier communication compared with “NIDEK”. However, with “NCP10”, data transmission in
response to a request from the personal computer is not available. Select a transmission sequence
that suits your needs or purposes.
2.1.3 When the I/F MODE parameter is set to NIDEK
DTR/DSR control:
T1, T2 ≤0.1 sec.
(Time-out period: T1, T2 > 0.1 sec.)
Disable DTR as soon as possible after the transmission and reception of EOT.
COMMUNICATION SEQUENCE NIDEK NCP10
DTR/DSR control Yes No
RS/SD command control Yes No
Data transmission in response to a request from the
PC Available Not available
Checksum data OFF Available
Data
Data
Same timing
Same timing
Sending
end
Receiving
end

6
RS-232C COMMUNICATION: Outline of RS-232C Communication
{RS/SD command control:
[When the print button ( ) is pressed:]
[When a data send request is sent from the external computer:]
2.1.4 When the I/F MODE parameter is set to NCP10
The DTR/DSR control is not performed. The DTR signal of the TONOREF II is constantly at a low
state on a line. The DTR signal of the external computer does not affect the transmission under either
condition.
In addition, since the RS/SD command control is not performed, pressing the print button ( )
sends the data directly.

7
RS-232C COMMUNICATION: Data Format
2
2.2 Data Format
2.2.1 Command Format (with “NIDEK”)
ASCII characters are used for data transmission and reception.
1 RS command
Sends a request for 2 SD command to the external computer from the TONOREF II.
2 SD command
Sends a request for measured data transmission to the TONOREF II from the external com-
puter.
1) For requesting AR measured data:
2) For requesting KM measured data:
3) For requesting AR and KM measured data:
4) For requesting NT measured data:
5) For requesting AR, KM and NT measured data:
H: HEX (Hexadecimal)
SOH C * * STX R S ETB EOT
01H 43H 2AH 2AH 12H 52H 53H 17H 04H
SOH C R M STX S D ETB EOT
SOH C K M STX S D ETB EOT
SOH C R K STX S D ETB EOT
SOH C N t STX S D ETB EOT
SOH C R N STX S D ETB EOT

8
RS-232C COMMUNICATION: Data Format
3CLcommand
Sends a request to clear measured data to the TONOREF II from the external computer.
All-clear process is executed by any of the commands shown below. After the execution of
all-clear process which corresponds to the actuation of the print button ( ), preparations
for the next measurement are made.
When the measurement is started after preparation, the previous data is cleared and the
next patient is measured.
SOH C R M STX C L ETB EOT
SOH C K M STX C L ETB EOT
SOH C R K STX C L ETB EOT
SOH C N T STX C L ETB EOT
SOH C R N STX C L ETB EOT

9
RS-232C COMMUNICATION: Data Format
2
2.2.2 Data Format
{Basic format
1) AR measured data:
2) KM measured data:
3) AR and KM measured data:
4) NT measured data:
5) AR, KM and NT measured data:
When the TONOREF II receives the SD command, data transmission is started in this format.
When the I/F MODE (Interface Mode) parameter is set to “NCP10”, four digits of checksum are added
after “EOT” in each data format.
{Data transmitted from the TONOREF II:
SOH D R M STX Data ETB Data ETB Data ETB EOT
SOH D K M STX Data ETB Data ETB Data ETB EOT
SOH D R M STX Data ETB Data ETB Data
SOH D K M STX Data ETB Data ETB EOT
SOH D N T STX Data ETB Data ETB EOT
SOH D R M STX Data ETB Data ETB Data
SOH D K M STX Data ETB Data ETB
SOH D N T STX Data ETB Data ETB EOT
1) Company name / Model name 2) Patient number
3) Date and time of measurement 4) Vertex distance
5) Near working distance 6) Objectively measured data
7) Contact lens conversion data 8) Optimum trial lens data
9) Pupillary distance 10) KM measurements
11) Corneal size measurements 12) Pupil size measurements
13) NT measurements 14) Checksum

10
RS-232C COMMUNICATION: Data Format
{Data
The number inside the parentheses indicates the number of characters transmitted.
1 Company name / Model name
When the I/F FORMAT parameter is set to SHORT and a request for KM data only is sent
(See “2 SD Command” of 2.2.1), the company name and model name are not transmitted.
2 Patient number
3 Date and time of measurement
Even if the time format is set to “AM/PM”, the communication Data is set to “24H”.
4 Vertex distance
5 Near working distance
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11
RS-232C COMMUNICATION: Data Format
2
6 Objectively measured data
If median values have been obtained after three or more measurements, the median values
are transmitted first and then respective items of data are transmitted (in order of acquisition
time with the latest data first). Order of R/L: L →R.
If “45. CAT MARK” parameter is set to “YES”, CAT measured mark “*” is inserted on the data that
was measured by AR in the condition of indicating the CAT measurement mode mark ( ).
1) Left eye data
2) Right eye data
3) Error data
Measurement errors are stored in memory and transmitted together with AR measured data.
If the I/F FORMAT parameter is set to SHORT:
• Only median values are transmitted as objectively measured data.
• If median values have not been obtained, only the latest data is transmitted.
• The error data is not transmitted.
Type of
error Content
+O Positive SPH range over error
-O Negative SPH range over error
CO CYL range over error
Right eye data
Left eye data

12
RS-232C COMMUNICATION: Data Format
7 Contact lens conversion data
1) Left eye data
2) Right eye data
8 Optimum trial lens data
1) Left eye data
2) Right eye data
If the TL PRINT parameter is set to NO, trial lens data is not transmitted.
9 PD measurement
1) When both right and left PD values are measured:
2) When the distance PD value only is measured:
ie
If the NEAR PD parameter is set to NO, only “??” is transmitted.
If the PD values are measured more than one time, the measured PD data is transmitted in
order of acquisition time with the latest PD data first. However, if the I/F FORMAT parameter
is set to SHORT, only the latest PD value is transmitted.

13
RS-232C COMMUNICATION: Data Format
2
10 KM measurements
When median values have been obtained after three or more measurements, the median
values are transmitted first and then respective items of data are transmitted (in order of
acquisition time with the latest data first). Order of R/L: L →R.
If the I/F FORMAT parameter is set to SHORT:
• Only KM median values are transmitted.
• When median values could not be obtained, only the latest KM measured data is transmitted.
• Data (D: in diopter) is not transmitted.
1) Left eye (mm) data
2) Left eye (D) data
3) Right eye (mm) data
4) Right eye (D) data

14
RS-232C COMMUNICATION: Data Format
11 Corneal size (CS) measurement
If the I/F FORMAT parameter is set to SHORT, the data is not transmitted.
1) Left eye data
2) Right eye data
12 Pupil size (PS) measurements
If the I/F FORMAT parameter is set to SHORT, the data is not transmitted.
1) Left eye data
2) Right eye data
“Target lamp” transfers the state of the target lamp during the PS measurement.
N: Target lamp ON
F: Target lamp OFF

15
RS-232C COMMUNICATION: Data Format
2
13 NT measurements
1) Right eye data
The number of data to be transmitted varies with the number of measurements (1 to 10).
(Measured data is transmitted in order of acquisition time with the latest data first.)
2) Left eye data
In the case of the left-eye data, no spaces (*) are added after data.

16
RS-232C COMMUNICATION: Data Format
3) Right eye data - APL error
4) Left eye data - APL error
5) Right eye data - OVR error
6) Left eye data - OVR error