Communication method
RS-485 Half Duplex (Multi-drop protocol is not supported)
Transmission code
Binary
Data length
8bit
Stop length
1bit
Parity check
Nil
Baud rate (bps)
9.6k / 19.2k / 38.4k / 57.6k / 115.2k / 230.4k / 312k / 460k / 500k / 625k / 833k / 920k /
1.25M
Data classification
STX / ETX
J
1
Data Format / Data Format
•
Transmission data
STX
COMMAND
DATA1
DATA2
ETX
BCC
•
Incoming data
STX
ACK
RESPONSE1 RESPONSE2 ETX
BCC
•
Incomming data (error)
STX
NAK
ERROR CODE 00H
ETX
BCC
STX = 02H , ETX = 03H , ACK = 06H , NAK = 15H , BCC = XOR of values hatched
J
2
Basic Commands
Command
Description
C(43H)
Reading out Measurement value / Output status
W(57H)
Writing the setting
R(52H)
Reading out setting
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3
Error code table
Error code
Description
02H
Address is invalid
04H
BCC value is invalid
05H
Invalid command is issued except "C", "W", "R"
06H
Setting value is invalid (out of specifications)
07H
Setting value is invalid (out of range)
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4
C(43H) parameter table (Reading out Measurement value/Output status)
Command
Type
DATA1 (upper) DATA2 (lower) Description
Reading out Measurement value
Write
B0h
01h
Read
Upper data
Lower data
Response in 2 bytes
1)
Reading out Output status
Write
B0h
02h
Read
00h
Output status
bit:0 = 1 (ON)
bit:4 = 0 (the status has been read)
Writing the setting
Write
A0h
00h
Write the setting into EEPROM. The setting will be dissa-
peared if this command is not done.
Read
00h
00h
Dismissing the setting
Write
A0h
01h
Dismiss the setting and set the parameters to previous value
back.
Read
00h
00h
Teaching ObSB
Write
11h
05h
Read
00h
00h
Teaching near side point
Write
11h
06h
Read
00h
00h
Teaching far side point
Write
11h
07h
Read
00h
00h
Laser ON
Write
A0h
03h
Read
00h
00h
Laser OFF
Write
A0h
02h
Read
00h
00h
Execute Zero reset
Write
A1h
00h
Read
00h
00h
Release Zero reset
Write
A1h
01h
Read
00h
00h
Execute Key lock
Write
A1h
04h
Read
00h
00h
Release Key lock
Write
A1h
05h
Read
00h
00h
Initializing
Write
40h
00h
Initialize all parameters except communication speed and
re-boot. The communication won't worrk while initializing.
Read
00h
00h
1) Measurement value is described as following.
Model
OD1-B015x05xxx
OD1-B035x15xxx
OD1-B100x50xxx
Range
±5mm
±15mm
±50mm
Unit
1μm
10μm
10μm
Data (Hex)
EC78h
1388h
FA24h
05DCh
EC78h
1388h
Data (Decimal)
-5000
+5000
-1500
+1500
-5000
+5000
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Setting parameter table
Setting
Address/
Parameter
DATA1 (upper) DATA2 (lower)
Description
Model type
Address
01h
00h
Return center value of measurement range (only for
checking model type)
Parameter
00h
0Fh / 23h / 64h
15mm type / 35mm type / 100mm type
Measurement
mode
Address
40h
04h
Parameter
00h
00h / 01h / 02h
2 point Teaching / 1 point Teaching / ObSB Teaching
Near side threshold Address
41h
00h
Parameter
Upper data
Lower data
Far side threshold
Address
41h
02h
Parameter
Upper data
Lower data
ObSB threshold
Address
41h
04h
Parameter
Upper data
Lower data
ObSB hysteresis
Address
41h
06h
Parameter
Upper data
Lower data
Output polarity
Address
40h
08h
Parameter
00h
00h
Light ON: ON when exceeds the threshold
00h
01h
Dark ON: ON when less than the threshold
Sampling period
Address
40h
06h
Parameter
00h
00h / 01h / 02h / 03h / 04h
500μs / 1,000μs / 2,000μs / 4,000μs / AUTO
Averaging number
Address
40h
0Ah
Parameter
00h
00h / 01h / 02h / 03h
Once / 8 times / 64 times / 512 times
Alarm setting
Address
40h
0Ch
Parameter
00h
00h / 01h
Clamp / Hold
Alarm - Hold and
Clamp
Address
41h
08h
Parameter
Upper data
Lower data
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Communication (English)
Setting
Address/
Parameter
DATA1 (upper) DATA2 (lower)
Description
Display setting
Address
40h
0Eh
Parameter
00h
00h / 01h
ON / OFF
Hysteresis
Address
41h
10h
Parameter
Upper data
Lower data
Threshold
Address
40h
12h
Parameter
00h
00h / 01h / 02h / 03h
Base: Lowest level / Level 400: Upper level / Level
200: middle level / Level 100: lower level
Zero shift
Address
41h
12h
Parameter
Upper data
Lower data
Sensitivity
Address
40h
14h
Parameter
00h
00h
AUTO
00h
01h / 02h / 03h / 04h / 05h
/ 06h
6: Maximum sensitivity / 5 / 4 / 3 / 2 / 1: Minimum
sensitivity
* Execute the command "R" (Read out) before executing command "W" (Write).
K
1
Example: Writing Data – General Procedure
Writing is done as following proceedure.
1. Read out setting
Execute Command "R" (Reading out setting) on the target parameter. Set "Address" at "DATA1" and "DATA2".
2. Write setting
Execute Command "W" (Writing the setting) on the target parameter. Writing data is done to the address set at "1. Read setting".
3. Write to EEPROM (see
J
4
).
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2
Example: Setting "Sampling period" to "AUTO" (see J
5
)
1. Read out "Sampling period"
Transmission command:
STX (02h) R (52h)
40h
06h
ETX (03h)
BCC (14h)
Incoming data:
STX (02h) ACK (06h) 00h
00h
ETX (03h)
BCC (06h)
2. Write the setting
Transmission command:
STX (02h) W (57h)
00h
04h
ETX (03h)
BCC (53h)
Incoming data:
STX (02h) ACK (06h) 00h* 00h* ETX (03h)
BCC (06h)
* Incoming data of command "W" (Writing the setting) will be "00h" and "00h".
3. Write to EEPROM
Transmission command:
STX (02h) C (43h)
A0h
00h
ETX (03h)
BCC (E3h)
Incoming data:
STX (02h) ACK (06h) 00h
00h
ETX (03h)
BCC (06h)
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Example: Setting "Far threshold" + 1 mm with OD1-*35 type
1. Read out "Far side threshold"
Transmission command:
STX (02h) R (52h)
41h
00h
ETX (03h)
BCC (13h)
Incoming data:
STX (02h) ACK (06h) FEh
D4h
ETX (03h)
BCC (2Ch)
2. Write the setting
Transmission command:
STX (02h) W (57h)
00h
64h
ETX (03h)
BCC (33h)
Incoming data:
STX (02h) ACK (06h) 00h
00h
ETX (03h)
BCC (06h)
3. Write to EEPROM
Transmission command:
STX (02h) C (43h)
A0h
00h
ETX (03h)
BCC (E3h)
Incoming data:
STX (02h) ACK (06h) 00h
00h
ETX (03h)
BCC (06h)
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4
Example: Read out measurement data*
Transmission command:
STX (02h) C (43h)
B0h
01h
ETX (03h)
BCC (F2h)
Incoming data:
STX (02h) ACK (06h) FCh
6Fh
ETX (03h)
BCC (95h)
*example with OD1-B035x15xxx/ measuring value = –9.13 mm
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Example: Errorcode for Laser ON
Command with
WRONG
check sum:
Transmission command:
STX (02h) C (43h)
A0h
03h
ETX (03h)
BCC (E2h)
Incoming data:
STX (02h) NAK (15h) 04h* 00h
ETX (03h)
BCC (11h)
*BCC invalid (see
J
3
)
Command with
RIGHT
check sum:
Transmission command:
STX (02h) C (43h)
A0h
03h
ETX (03h)
BCC (E0h)
Incoming data:
STX (02h) ACK (06h) 00h
00h
ETX (03h)
BCC (06h)
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Examples (English)
