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GM66 Bar Code Reader Module
User Manual
Hangzhou Grow Technology Co., Ltd.
V1.3 May. 2018
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Catalog
1. Introduction of Module.........................................................................................................................................3
1.1 Introduction.............................................................................................................................................. 3
1.2 Technical Specification.............................................................................................................................3
1.3 Dimension(mm)........................................................................................................................................2
Control Panel................................................................................................................................................ 2
Scan Area(testing in office (250 lux)........................................................................................................... 3
1.4 Setup Code................................................................................................................................................4
1.5 Appendix E：Save or Cancel...................................................................................................................4
1.6 Reset......................................................................................................................................................... 4
2 Communication interface..................................................................................................................................... 5
2.1 Series Communication Interface.............................................................................................................. 5
2.2 USB Interface........................................................................................................................................... 6
2.3 USB Virtual Serial Port............................................................................................................................ 6
3 Read Mode............................................................................................................................................................7
3.1 Continuous Mode..................................................................................................................................... 7
3.2 Induction Mode.........................................................................................................................................8
3.3 Manual Mode............................................................................................................................................9
3.4 Command Triggered Mode.................................................................................................................... 10
4 Lighting and Collimate.......................................................................................................................................11
4.1 Lighting...................................................................................................................................................11
4.2 Collimation............................................................................................................................................. 11
5 Prompts...............................................................................................................................................................12
5.1 Prompts Tone.......................................................................................................................................... 12
5.2 Decode successfully tone....................................................................................................................... 12
5.3 Decoding Prompt....................................................................................................................................13
5.4 Data code format.................................................................................................................................... 13
5.5 Keyboard Settlement.............................................................................................................................. 13
5.6 Image Flip...............................................................................................................................................14
6 Data Edition........................................................................................................................................................15
6.1 Prefix.......................................................................................................................................................15
6.2 Suffix...................................................................................................................................................... 16
6.3 CODE ID................................................................................................................................................ 16
6.4 Tail.......................................................................................................................................................... 19
6.5 Cut out Data............................................................................................................................................19
6.6 RF Information....................................................................................................................................... 21
7 Bar code type enables/disable configuration......................................................................................................22
7.1 All types of bar code can be decoded.....................................................................................................22
7.2 Bar code rotate........................................................................................................................................22
7.3 EAN13....................................................................................................................................................22
7.4 EAN8...................................................................................................................................................... 23
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7.5 UPCA......................................................................................................................................................23
7.6 UPCE0....................................................................................................................................................23
7.7 UPCE1....................................................................................................................................................23
7.8 Code128..................................................................................................................................................23
7.9 Code39....................................................................................................................................................24
7.10 Code93....................................................................................................................................................24
7.11 CodeBar..................................................................................................................................................25
7.12 QR........................................................................................................................................................... 26
7.13 Interleaved 2 of 5....................................................................................................................................26
7.14 Industrial 25............................................................................................................................................26
7.15 Matrix 2 of 5...........................................................................................................................................27
7.16 Code11.................................................................................................................................................... 27
7.17 MSI......................................................................................................................................................... 28
7.18 RS............................................................................................................................................................29
7.19 DM..........................................................................................................................................................29
7.20 PDF417...................................................................................................................................................30
8 Serial Port Instruction.........................................................................................................................................31
8.1CRC Algorithm..............................................................................................................................................31
8.2 Read Zone Bit.........................................................................................................................................32
8.3 Write Zone Bit........................................................................................................................................ 33
8.4 Save zone bit to EEPROM Command................................................................................................... 34
8.5 List of zone bit........................................................................................................................................34
9 Appendix A：Common serial port instruction.................................................................................................. 48
10 Appendix B：Code ID List................................................................................................................................49
11 Appendix C：ASCII.......................................................................................................................................... 50
12 Appendix D：data code..................................................................................................................................... 55
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1. Introduction of Module
MG66 Bar code reader module is a high performance
scanner, can read 1D bar code easily and read 2D bar code with
high speed. It also wins high scan speed for linear code, even for
bar code on paper or screen.
MG66 bar code reader module is an advanced bar code
decoding algorithm which developed on image recognition
algorithm, can easily and accurately read bar code, simplify
secondary development.
Default scan mode
Continuous scan
Read code time for once
3s
Parameter：0.1-25.5s; step-size: 0.1s; 0
means no time limited
Reading interval
1S
Parameter：0.1-25.5s; step-size: 0.1s; 0
means no time limited
Output
GBK
GBK、UNICODE、 BIG5
Interface
USB
USB 、UART、USB VCom
Interface
( TTL-232)
Serial Baud Rate
9600
adjustable，details at 2.1
Verification
N
Data bit
8
Stop bit
1
CTSRTS
No
serial mode
Read code time
for once
5s
Parameter：0.1-25.5s; step-size: 0.1s; 0
means no time limited
1.1 Introduction
MG66 works stable in dark and large temperature range.
1.2 Technical Specification
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Electrical specification:
1
Operating Voltage
DC 4.2 - 6.0V
2
Standby Current
30mA
3
Operating Current
160mA
4
Sleep Current
3mA
1
Light
White light
2
Capture light
Red
3
Scan Angle
Roll:0-360°, Pitch:±65°, Yaw:±60°
4
Resolution
648x 488
5
Scanning angle
35°（Inclination）, 28°（Elevation）
Running characteristic
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1.3 Dimension(mm)
Control Panel
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Scan Area (testing in office (250 lux)
Type of Bar
Code
Density
Min.
distance
Max. distance
Code 39
0.125 mm
(5 mils)
4.0 cm
9.0 cm
0.375 mm
(15 mils)
4.0 cm
25.0cm
UPC/EAN
0.375 mm
(15 mils)
4.0 cm
25.0cm
Code93
0.254 mm
(10 mils)
4.0 cm
21.0cm
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1.4 Setup Code
Customer can set module by scan setup code.
Default: setup code on Off
Output details in setup code
Default: Not output Output
1.5 Save and Cancel
Scan cancel code to cancel wrong read date.
Save Cancel last byte
Cancel all read bytes Cancel changes
1.6 Reset
Back to Factory Setting by scan follow code.
Reset
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2 Communication interface
Parameters
Default
Series communication interface
Standard TTL-232
Baud rate
9600
Verification
N
Data bit
8
Stop bit
1
CTSRTS
N
GM66 can receive database, control module and set functional parameter by TTL - 232.
2.1 Series Communication Interface
It’s default and common to connect module and mainframe(such as PC, POS) by series
communication interface. Make sure communication parameter for module and mainframe are same,
then it will communicate smooth and correctly.
Series Output
TTL-232 is used for series interface which suitable for most system. Required change-over circuit
for RS-232.
Default Parameter as formForm 2- 1. Only Baud Rate can be changed.
Form 2- 1 Default Parameters
Baud Rate Settlement
1200bps 4800bps 9600bps(Default)
14400bps 19200bps
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38400bps 57600bps 115200bps
2.2 USB Interface
Scan the following code to become standard keyboard input pattern when module connects PC by
USB.
USB PC Keyboard
2.3 USB Virtual Serial Port
Scan the following code to become virtual serial port output pattern when module connects PC by
USB.
USB Virtual serial port
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3 Read Mode
3.1 Continuous Mode
On this mode, reading module read code continuous and automatic.
Break after reading one code, break time is changeable.
Click the toggle key to pause. Then click to continuous cyclic read code.
Default Continuous Mode
Time settlement for single read
The longest time before first successful reading. After this time, module will be into no read time.
Single Read time: 0.1~25.5 s, step-size: 0.1s;
0 means infinite time interval.
Default time: 5s
1000ms default 3000ms
5000ms infinite time interval
Break time settlement
Time between two read. Can be settled from 1 to 25.5 s, step-size: 0.1s; default 1.0s
No break 500ms default 1000ms
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1500ms 2000ms
3.2 Induction Mode
After setting, module begins to monitor brightness immediately. When scene changed, module will
begin to read until time of image stabilization over.
After first successful reading or single reading time out, module will monitor brightness again after
some time (changeable)
Module will cycle working as above when follow happen: module can’t find code between single
read time, then it will stop reading and jump to monitor brightness.
On induction mode, module can begin reading code by click, and it will begin to monitor brightness
when release toggle key or successfully output information.
Induction Mode
Time settlement for single read
The longest time read before first successful reading. After this time, module will be into no read
time.
Single Read time: 0.1~25.5 s, step-size: 0.1s;
0 means infinite time interval.
Default time: 5s
1000ms 3000ms
Default 5000ms infinite time interval
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Break time settlement
After one successful output or time out for single read. Module will be into monitor after some time.
Time from 0 to 25.5 s, step-size: 0.1s; default 1.0s
No Break 500ms Default 1000ms
1500ms 2000ms
Image stabilization time
Image stabilization time: the time cost after module find scene change then waiting for the scene
stable. Time from 0s to 25.5s, step size 0.1s. Default 0.4s.
100ms Default 400ms
1000ms 2000ms
3.3 Manual Mode
Manual mode is default mode. Click toggle key begin to read, stop when output or release toggle
key
Manual Mode
Into sleep mode after not work for a while, can be settled by following code.
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Sleep mode on Sleep mode off
Default: come into sleep mode after 30s free. Wake up by key. Module will restart after dropping out
sleep mode.
3.4 Command Triggered Mode
Module begins to read when receive scan command from mainframe( bit0 of zone bit 0x0002
writes”1”) , and stop at output or read timeout.
Command triggered mode
Under command triggered mode, command for serial port trigger is 7E 00 08 01 00 02 01 AB CD;
After receiving command, model will output “ 02 00 00 01 00 33 31” and start scan.
Time settlement for single read
Read and Scan time before output. From 0.1s to 25.5s, step size 0.1s. 0 : infinite time interval;
Default: 5s
1000ms 3000ms
Default 5000ms infinite time interval
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4 Lighting and Collimate
4.1 Lighting
Head lamp is used to additional lighting when read.
Normal(default): Head lamp will be on when read, others off.
Normally on: always on after boot.
OFF: head lamp is always off
Normal Normally on Off
4.2 Collimation
There will be a pointing light beam which can help user to find best distance.
Normal(default): pointing light beam shows when read
Normally on: pointing light beam shows after power on until power off
No Collimation: no pointing light beam
Normal(default) Normally on No Collimation
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5 Prompts
5.1 Prompts Tone
Sound of buzzer
UP Down
Silence：Close all prompt tones
Silence on Silence off
5.2 Read code successfully tone
Default on Close read code successfully tone
Duration time setting. Default: 60ms
30ms 60ms
90ms 120ms
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5.3 Decoding Prompt
Output Decoding Prompt: F- read unsuccessfully; S- successful
Default no decoding prompt output Output
5.4 Data code format
Read following to print Chinese data according to specified code forma.
GBK format: notepad, UNICODE format: WORD and input box for chat tools,
BIG5 format: Chinese Traditional
GBK UNICODE
5.5 Keyboard Settlement
Scan following code to change keyboard.
Default Keyboard- US Czech France
BIG5
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Germany Hungary Italy
Japan Spain
5.6 Image Flip
When meet flipped or mirror image, like:
Scan code into or exit image flip mode
image flip mode Exit
PS: in the image flip mode can only scan flipped image. For normal, should exit.
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6 Data Edition
Sometimes we need to edit the data before output to make data separation and processing more
easily.
Data edition include:
Add Prefix
Add Suffix
Cut data
Output CodeID
Output “RF” when fail to decode
Add End words”Tail”
Output sequence after data edition:
【Prefix】【CodeID】【Data】【Suffix】【Tail】
6.1 Prefix
Add prefix
Prefix is on the head of encoding Information , and can be self-defined.
Scan the code to add prefix.
Allow to add prefix Default no prefix
Change prefix
Scan “change prefix” and “setup code” code to change prefix.
Use 2 base 16 to express each character.
Max 15 characters.
ASCII on appendix C.
change prefix
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E.G. Change prefix to “DATA”
1. ”DTAT” in base 16: “44”, “41”, “54”, “41”
2. Confirm open the “ setup code”, if not, find on 1.4
3. Scan “change prefix” code
4. Successively scan “Code ID”: “4”, “4”, “4”, “1”, “5”, “4”, “4”, “1”
6.2 Suffix
Add Suffix
Suffix on the end of encoding Information, and can be self-defined.
Allow add suffix Default no suffix
Change suffix
Scan “ change suffix” and “setup code” code to change prefix.
Use base 16 to express each character.
Max 15 characters. ASCII on appendix C.
Change Suffix
E.G.: Change suffix to “DATA”
1. “DTAT” in base 16: “44”, “41”, “54”, “41”
2.Confirm opening the “setup code”, if not, find on 1.4
3.Scan “change suffix” code
4.Successively scan “Code ID”: “4”, “4”, “4”, “1”, “5”, “4”, “4”, “1”
5.Scan “save” code
6.3 CODE ID
Add CODE ID
Users can identify different types of bar code by CODE ID. CODE ID use one character to
identify and can be self- defined.
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Allow add CODE ID Default close CODE ID
Default of CODE ID
Scan “ Default of CODE ID” to back default ID, default ID on appendix B
all bar code back to default ID
Change CODE ID
Users can change CODE ID of any bar code by scan the setup code (as follow) and data edition
code.
Base 16 is used to express each CODE ID.
ASCII on appendix C.
E.G.: change CODE ID of CODE 128 to “A”
1. Find “A”=”41” in base 16
2. Confirm opening the “setup code”, if not, find on 1.4
3. Scan “ change CODE 128”
4. Successively scan “Code ID”: “4”, “1”
5. Scan “save” code
Change CODE ID LIST
Change CODE ID of EAN13 Change CODE ID of EAN8
Change CODE ID of UPCA Change CODE ID of UPCE0
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Change CODE ID of UPCE1 Change CODE ID of CODE 128
Change CODE ID of CODE 39 Change CODE ID of CODE 93
Change CODE ID of CODE BAR Change CODE ID of Interleaved 2 of 5
Change CODE ID of Industrial 25 Change CODE ID of Matrix 2 of 5
Change CODE ID of CODE 11 Change CODE ID of MSI
Change CODE ID of RSS Change CODE ID of limited RSS
Change CODE ID of expended RSS Change CODE ID of QR CODE
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Change CODE ID of Data Matrix Change CODE ID of limited PDF417
6.4 Tail
Open this function to help system quickly distinguish current decoding results.
Scan “Add tail” to open this function, if read success, there will be tail on the end of decode data.
Close tail Add tail “CR”
Add tail “TAB” Add tail “CRLF”
6.5 Cut out Data
Open to output part of data.
[Data] is composed of [Start] + [Center] + [End]
Character length of “start” and “end” can be changed
Output whole data Output Start part
Output End Part Output Center part
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Change length of [Start]-M
Scan “ Change M” code and “data edition” code to change length of [Start], max 255 characters
Base 16 is used to express length. ASCII on appendix C.
Change M
Change length of [End]-N
Scan “ Change N” code and “data edition” code to change length of [Start], max 255 characters
Base 16 is used to express length. ASCII on appendix C.
Change N
Output Start part
E.G. Output “1234567890123” of whole decode information “ 1234567890123ABC”
1. “13” =”0D” in base 16
2. Confirm opening the “setup code”, if not, find on 1.4
3. Scan” change length M”
4. Successively scan “Code ID”: “0”, “D”
5. Scan “save” code
6. Scan” Output Start part”
Output End Part
E.G. Output “ABC” of whole decode information “ 1234567890123ABC”
1. “3” = “03” in base 16
2. Confirm opening the “setup code”, if not, find on 1.4
3. Scan ”change length N”
4. Successively scan “Code ID”:”0”, “3”
5. Scan “save” code
6. Scan” Output Start part”
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Output Center part
E.G.: Output “0123” of whole decode information “ 1234567890123ABC”
1. “ 10” =”0A”; “3”=”03” in base16
2. Confirm opening the “setup code”, if not, find on 1.4
3. Scan “change length N”
4. Successively scan “Code ID”:”0”, “3”
5. Scan “save” code
6. Scan ” change length M”
7. Successively scan :Code ID”: “0”, “A”
8. Scan “save” code
9. Scan “Output Center part”
6.6 RF Information
RF(Read Fail): Users can self- define output information when read fail.
Output RF information Default not output
Change RF information
Scan”change RF information” and “data edition code” to change RF information.
Base 16 is used to express, max at 15 character. ASCII on appendix C.
Change RF information
E.G.: change RF to “FAIL”
1. Find “FAIL” in base-16: “46”, “41”, “49”, “4C”
2. Confirm opening the “setup code”, if not, find on 1.4
3. Scan “ change RF information”
4. Successively scan“4”、“6”、“4”、“1”、“4”、“9”、“4”、“C”
5. Scan “save” code
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7 Bar code type enables/disable configuration
7.1 All types of bar code can be decoded
After scan “ Forbid read all bar code” , module will only support to scan setup code.
Support all Forbid read all bar code
Open default support types
7.2 Bar code rotate
Default allow 360°rotate read Forbid 360°rotate read
7.3 EAN13
Allow reading EAN13 Forbid reading EAN13
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7.4 EAN8
Allow reading EAN8 Forbid reading EAN8
7.5 UPCA
Allow reading UPCA Forbid reading UPCA
7.6 UPCE0
Allow reading UPCE0 Forbid reading UPCE0
7.7 UPCE1
Allow reading UPCE1 Forbid reading UPCE1
7.8 Code128
Allow reading Code128 Forbid reading Code128
Scan following code to change min length of code 128
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Code128 min length at 0 Code128min length at 4
Scan following code to change max length of code 128
Code128 max length at 32 Code128 max length at 255
7.9 Code39
Allow reading Code39 Forbid reading Code39
Scan following code to change min length of code39
Code39 min length at 0 *Code39 min length at 4
Scan following code to change max length of code39
Code39 max length at 32 Code39 max length at 255
7.10Code93
Allow reading Code93 Forbid reading Code93
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Scan following code to change min length of code93
Code93 min length at 0 Code93 min length at 4
Scan following code to change max length of code93
Code93max length at 32 Code93max length at 255
7.11 CodeBar
Allow reading CodeBar Forbid reading CodeBar
Scan following code to allow/forbid to send Start-stop operator
Send CodeBar Start-stop operator Not send CodeBar Start-stop operator
Scan following code to change min length of CodeBar
CodeBar min length at 0 CodeBarmin length at 4
Scan following code to change min length of CodeBar
CodeBar max length at 32 CodeBar max length at 255
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7.12QR
Allow reading QR Forbid reading QR
7.13Interleaved 2 of 5
Allow reading Interleaved 2 of 5 Default Forbid reading Interleaved 2 of 5
Scan following code to set min length of Interleaved 2 of 5
Interleaved 2 of 5 min length at 0 Default Interleaved 2 of 5 min length at 4
Scan following code to set max length of Interleaved 2 of 5
Interleaved 2 of 5 max length at 32 Interleaved 2 of 5max length at 255
7.14Industrial 25
Allow reading Industrial 25 Forbid reading Industrial 25
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Scan following code to set min length of Interleaved 25
Industrial 25 min length at 0 Industrial 25 min length at 4
Scan following code to set max length of Interleaved 25
Industrial 25 max length at 32 Industrial 25 max length at 255
7.15Matrix 2 of 5
Allow reading Matrix 2 of 5 Forbid reading Matrix 2 of 5
Scan following code to set min length of Matrix 2 of 5
Matrix 2 of 5 min length at 0 Matrix 2 of 5 min length at 4
Scan following code to set max length of Matrix 2 of 5
Matrix 2 of 5 max length at 32 Matrix 2 of 5max length at 255
7.16Code11
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Allow reading Code11 Forbid reading Code11
Scan following code to set min length of Code11
Code11 min length at 0 Code11 min length at 4
Scan following code to set max length of Code11
Code11 max length at 32 Code11 max length at 255
7.17MSI
Allow reading MSI Forbid reading MSI
Scan following code to set min length of MSI
MSI min length at 0 *MSI min length at 4
Scan following code to set max length of MSI
MSI max length at 32 MSI max length at 255
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7.18RS
Allow reading RSS-14 Forbid reading RSS-14
Allow reading limited RSS Forbid reading limited RSS
Allow reading expended RSS Forbid reading expended RSS
Scan following code to set min length of RSS
RSS min length at 0 RSS min length at 4
Scan following code to set max length of RSS
*RSS max length at 32 RSS max length at 255
7.19DM
Allow reading DM Forbid reading DM
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7.20PDF417
Allow reading PDF417 Forbid reading PDF417
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8 Serial Port Instruction
Users can settle the module by sending instruction from mainframe.
Please make sure communicate parameter complete matching between module and mainframe.
Module default serial communicate parameter: Baud rate 9600bps; No check; 8 bit data; 1 bit stop
bit; No flow control.
8.1CRC Algorithm
CRC: CRC_CCITT check value (2 bytes).
Suitable for Types、Lens、Address、Datas;
Characteristic polynomial : X16+X12+X5+1, multinomial coefficient: 0x1021, original value:0 ;
For single byte, the highest bit will be calculated at first, output will be without negation.
Reference code of C:
unsigned int crc_cal_by_bit(unsigned char* ptr, unsigned int len)
{
unsigned int crc = 0;
while(len-- != 0)
{
for(unsigned char i = 0x80; i != 0; i /= 2)
{
crc *= 2;
if((crc&0x10000) !=0)
crc ^= 0x11021;
if((*ptr&i) != 0)
crc ^= 0x1021;
}
ptr++;
}
return crc;
}
PS: when no need for checking CRC, CRC bite can be filled in 0xAB 0xCD
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8.2 Read Zone Bit
Numbers of bytes
2bytes
1byte
1byte
2bytes
1byte
2bytes
Name
Head
Types
Lens
Address
Datas
CRC
Details
0x7E00
07H
01H
xxH
xxH
xxH
Numbers of
bytes
2bytes
1byte
1byte
1byte
2bytes
Name
Head
Types
Lens
Datas
CRC
Details
0x0200
00H
xxH
xxH
xxH
Max 256 bytes/time for zone bit reading.
Send Command Format:
PS: Address : 0x0000~0x00FF（2 bytes）, address to start reading zone bit
Datas : 0x00~0xFF（1 byte）, Numbers of zone bit for Sequential read, 0x00= 256byets
Receive Command Format:
PS: Types: 0x00= read succeed
Lens : numbers of upload bytes; 0x00= 256bytes
Datas : 0x00~0xFF means read data.
If CRC wrong, no return data
If format or data wrong, no return data
E.G.:
Read address 0x000A of Zone bit
1) Read successfully and return data is 0x3E.
Input: 0x7E 0x00 0x07 0x01 0x00 0x0A 0x01 0xEE 0x8A
Output: 0x02 0x00 0x00 0x01 0x3E 0xE4 0xAC
2）CRC wrong
Input：0x7E 0x00 0x07 0x01 0x00 0x0A 0x01 0x11 0x22
Output ：None
3) When length of command to short or more than 400ms after 0x7e 0x00, treat as unknown
command.
Input: 0x7E 0x00 0x07 0x01 0x00 0x0A 0x01
Output: None
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8.3 Write Zone Bit
Numbers of
bytes
2bytes
1byte
1byte
2bytes
1byte
2bytes
Name
Head
Types
Lens
Address
Datas
CRC
Detail
0x7E00
08H
01H
xxH
xxH
xxH
Numbers of
bytes
2bytes
1byte
1byte
1byte
2bytes
Name
Head
Types
Lens
Datas
CRC
Detail
0x0200
00H
01H
00H
0x3331
Max 245 bytes for one time write
Send Command Format:
PS: Lens: 0x00~0xFF（1 byte）, means numbers of bytes of this datas, times of continuous writing.
0x00 means 256bytes
Address : 0x0000~0xFFFF（2 bytes）Start location of write
Datas ：0x00~0xFF（1~256 bytes）, dates wrote in zone bit
Receive Command Format:
PS: Types：0x00 write succeed
If CRC wrong, no return data
If format or data wrong, no return data
E.G.:
Write 0x3E in 0x000A of zone bit
1) successfully set
Input ：0x7E 0x00 0x08 0x01 0x00 0x0A 0x3E 0x4C 0xCF
Output：0x02 0x00 0x00 0x01 0x00 0x33 0x31
2) CRC wrong
Input：0x7E 0x00 0x08 0x01 0x00 0x0A 0x3E 0x11 0x22
Output：None
3) When length of command to short or more than 400ms after 0x7e 0x00, treat as unknown
command.
Input: 0x7E 0x00 0x08 0x01 0x00 0x0A 0x3E
Output: None
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8.4 Save zone bit to EEPROM Command
Numbers of
bytes
2bytes
1byte
1byte
2bytes
1byte
2bytes
Name
Head
Types
Lens
Address
Datas
CRC
Detail
0x7E00
09H
01H
0x0000
00H
0xDEC8
Numbers of
bytes
2bytes
1byte
1byte
1byte
2bytes
Name
Head
Types
Lens
Datas
CRC
Detail
0x0200
00H
01H
00H
0x3331
Zone bit
0x0000
Data bit
Function
Bit 7
1：Open LED when successfully read 0：Close
Bit 6
1：Mute off 0：Mute on
Bit 5-4
00：No aim 01：Standard 10/11：always on
Bit 3-2
00：No light 01：Standard 10/11：Always on
Bit 1-0
00：Manual mode 01：Command mode 10：Continuous mode
11：Sensor mode
Zone bit
0x0002
Data bit
Function
Send Command Format:
Datas Receive Format:
PS: Types : 0x00 = succeed
If CRC wrong, no return data
If format or data wrong, no return data
8.5 List of zone bit
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35
Bit 7
Keep
Bit 6
1：Output successfully decode prompt 0：Not output
Bit5-1
Keep
Bit0
Keep
Zone bit
0x0003
Data bit
Function
Bit 7-2
Keep
Bit 1
1：Close Settlement Code 0：Open
Bit0
1：Output content of settlement code 0：Not output
Zone bit
0x0004
Data bit
Function
Bit 7-0
Time for image stabilization
0x00-0xFF：0.0-25.5s
Zone bit
0x0005
Data bit
Function
Bit 7-0
Read interval
0x00-0xFF：0.0-25.5s
Zone bit
0x0006
Data bit
Function
Bit 7-0
Time for single read
0x00-0xFF：0.0-25.5s
Zone bit
0x0007
Data bit
Function
Bit 7
Auto sleep
1：On 0：Off
Bit6-0
Free time（high order Bit14-8）
Unit：100ms
Zone bit
0x0008
Page 40
36
Data bit
Function
Bit 7-0
Free time（low order Bit7-0）
Unit: 100ms
Zone bit
0x000A
Data bit
Function
Bit 7-0
Successfully read suond
0x00：Piezo Buzzer 0x01-0xFF：sfn, Value*20；
Zone bit
0x000B
Data bit
Function
Bit 7-0
Time duration for successfully read sound
0x00-0xFF；0-255ms
Zone bit
0x000C
Data bit
Function
Bit 7-1
Keep
Bit0
Piezo Buzzer
0：high level when free, low level when busy 1：low level when free,
high level when busy
Zone bit
0x000D
Data bit
Function
Bit 7-4
Keep
Bit 3-2
Data encoding format
00：GBK 01：UNICODE 10：BIG5 11：Keep
Bit1-0
00：serial port output 01：USB PC Keyboard 10：Keep
11：USB virtual serial port
Zone bit
0x000E
Data bit
Function
Bit 7-3
keep
Bit2
1：Decode successfully sound on 0：Decode successfully sound off
Bit1-0
Keep
Page 41
Zone bit
0x002B，0x2A
Data bit
Function
Bit 15-13
Keep
Bit 12-0
0x09C4：Series rate: 1200 bps
0x0271：Series rate: 4800 bps
0x0139：Series rate: 9600 bps
0x00D0：Series rate: 14400 bps
0x009C：Series rate: 19200 bps
0x004E：Series rate: 38400 bps
0x0034：Series rate: 57600 bps
0x001A：Series rate: 115200bps
Zone bit
0x002C
Data bit
Function
Bit 7-3
Keep
Bit 2-1
Bar code switch
00：forbid reading all bar code 01：all bar code can be read;
10/11：Default
Bit 0
360°rotate read
0：Close； 1：Open
Zone bit
0x002E
Data bit
Function
Bit 7-1
保留
Bit0
Read EAN13
0：Forbid 1：Allow
Zone bit
0x002F
Data bit
Function
Bit 7-1
Keep
Bit0
Read EAN8
0：Forbid 1: Allow
Zone bit
0x0030
Data bit
Function
37
Page 42
Bit 7-1
Keep
Bit0
Read UPCA
0：Forbid 1：Allow
Zone bit
0x0031
Data bit
Function
Bit 7-1
Keep
Bit0
Read UPCE0
0：Forbid 1：Allow
Zone bit
0x0032
Data bit
Function
Bit 7-1
Keep
Bit0
Read UPCE1
0：Forbid 1：Allow
Zone bit
0x0033
Data bit
Function
Bit 7-1
Keep
Bit0
Read Code128
0：Forbid 1：Allow
Zone bit
0x0034
Data bit
Function
Bit 7-0
Min length of Code128
0x00-0xFF：0-255Byte
Zone bit
0x0035
Data bit
Function
Bit 7-0
Max length of Code128
0x00-0xFF：0-255Byte
Zone bit
0x0036
Data bit
Function
38
Page 43
Bit 7-1
Keep
Bit0
Read Code39
0：Forbid 1：Allow
Zone bit
0x0037
Data bit
Function
Bit 7-0
Min length of Code39
0x00-0xFF：0-255Byte
Zone bit
0x0038
Data bit
Function
Bit 7-0
Max length of Code39
0x00-0xFF：0-255Byte
Zone bit
0x0039
Data bit
Function
Bit 7-1
Keep
Bit0
Read Code93
0：Forbid 1：Allow
Zone bit
0x003A
Data bit
Function
Bit 7-0
Min length of Code93
0x00-0xFF：0-255Byte
Zone bit
0x003B
Data bit
Function
Bit 7-0
Max length of Code93
0x00-0xFF：0-255Byte
Zone bit
0x003C
Data bit
Function
Bit 7-2
Keep
Bit1
Send CodeBar Start-stop operator
0：Forbid 1：Allow
39
Page 44
Bit0
Read CodeBar
0：Forbid 1：Allow
Zone bit
0x003D
Data bit
Function
Bit 7-0
Min length of CodeBar
0x00-0xFF：0-255Byte
Zone bit
0x003E
Data bit
Function
Bit 7-0
Max length of CodeBar
0x00-0xFF：0-255Byte
Zone bit
0x003F
Data bit
Function
Bit 7-1
Keep
Bit0
Read QR
0：forbid 1：allow
Zone bit
0x0040
Data bit
Function
Bit 7-1
Keep
Bit0
Read Interleaved 2 of 5
0：Forbid 1：Allow
Zone bit
0x0041
Data bit
Function
Bit 7-0
Min length of Interleaved 2 of 5
0x00-0xFF：0-255Byte
Zone bit
0x0042
Data bit
Function
Bit 7-0
Max length of Interleaved 2 of 5
0x00-0xFF：0-255Byte
Zone bit
0x0043
Data bit
Function
40
Page 45
Bit 7-1
Keep
Bit0
Read Industrial 25
0：forbid 1：Allow
Zone bit
0x0044
Data bit
Function
Bit 7-0
Min length of Industrial 25
0x00-0xFF：0-255Byte
Zone bit
0x0045
Data bit
Function
Bit 7-0
Max length of Industrial 25
0x00-0xFF：0-255Byte
Zone bit
0x0046
Data bit
Function
Bit 7-1
Keep
Bit0
Read Matrix 2 of 5
0：forbid 1：Allow
Zone bit
0x0047
Data bit
Function
Bit 7-0
Min length of Matrix 2 of 5
0x00-0xFF：0-255Byte
Zone bit
0x0048
Data bit
Function
Bit 7-0
Max length of Matrix 2 of 5
0x00-0xFF：0-255Byte
Zone bit
0x0049
Data bit
Function
Bit 7-1
Keep
Bit0
Read Code11
0：Forbid 1：Allow
Zone bit
0x004A
41
Page 46
Data bit
Function
Bit 7-0
Min length of Code11
0x00-0xFF：0-255Byte
Zone bit
0x004B
Data bit
Function
Bit 7-0
Max length of Code11
0x00-0xFF：0-255Byte
Zone bit
0x004C
Data bit
Function
Bit 7-1
Keep
Bit0
Read MSI
0：Forbid 1：Allow
Zone bit
0x004D
Data bit
Function
Bit 7-0
Min length of MSI
0x00-0xFF：0-255Byte
Zone bit
0x004E
Data bit
Function
Bit 7-0
Max length of MSI
0x00-0xFF：0-255Byte
Zone bit
0x004F
Data bit
Function
Bit 7-1
Keep
Bit0
Read RSS-14
0：Forbid 1：Allow
Zone bit
0x0050
Data bit
Function
Bit 7-1
Keep
42
Page 47
Bit0
Read limited RSS
0：Forbid 1：Allow
Zone bit
0x0051
Data bit
Function
Bit 7-1
Keep
Bit0
Read Expended RSS
0：Forbid 1：Allow
Zone bit
0x0052
Data bit
Function
Bit 7-0
Min length of RSS
0x00-0xFF：0-255Byte
Zone bit
0x0053
Data bit
Function
Bit 7-0
Max length of RSS
0x00-0xFF：0-255Byte
Zone bit
0x0054
Data bit
Function
Bit 7-1
Keep
Bit0
Read DM
0：Forbid 1：Allow
Zone bit
0x0055
Data bit
Function
Bit 7-1
Keep
Bit0
Read PDF417
0：Forbid 1：Allow
Zone bit
0x0060
Data bit
Function
Bit 7
Keep
43
Page 48
Bit6-5
Type of Tailed
00：CR(0x0D) 01：CRLF(0x0D,0x0A)
10：TAB(0x09) 11：None
Bit4
1.Allow add RF 0：Foebid
Bit3
1：Allow add prefix 0：Forbid
Bit2
1：Allow add Code ID 0：Forbid
Bit1
1：Allow add suffix 0：Forbid
Bit0
1：Allow add tail 0：Forbid
Zone bit
0x0061
Data bit
Function
Bit 7-0
Keyboard Settlement
00：US 01：Czech 02：France 03：Germany
04：Hungary 05：Italy 06：Japan 07：Spain
Zone bit
0x0062
Data bit
Function
Bit 7-4
Length of prefix
0x00-0x0F
Bit3-0
Length of suffix
0x00-0x0F
Zone bit
0x0063 – 0x0071
Data bit
Function
Bit 7-0
Prefix
0x00-0xFF：Content，max 15Byte
Zone bit
0x0072 - 0x0080
Data bit
Function
Bit 7-0
Suffix
0x00-0xFF：Content，max 15Byte
Zone bit
0x0081
Data bit
Function
44
Page 49
Bit 7-4
Keep
Bit3-0
RF length
0x00-0x0F
Zone bit
0x0082– 0x0081
Data bit
Function
Bit 7-0
RF content
0x00-0xFF：max 15Byte
Zone bit
0x0091 – 0x00A4
Data bit
Function
Bit 7-0
Code ID settlement
0x41-0x5a & 0x61-0x7a （A-Z,a-z）Code ID as appendix B
Zone bit
0x00B0
Data bit
Function
Bit 7-2
Keep
Bit 1-0
Data Cut out settlement
00：Output whole data 01：Output Start part
10：Output End part 11：Output center part
Zone bit
0x00B1
Data bit
Function
Bit 7-0
Cut out M bytes from start
0x00-0xFF：0-255 bytes
Zone bit
0x00B2
Data bit
Function
Bit 7-0
Cut out N bytes from end
0x00-0xFF：0-255个字符
Zone bit
0x00D9
（只写
Zone bit
）
Data bit
Function
Bit 7-0
Function Zone bit
0x55：reset to defaults
0xA0：Mild sleep, wake up by UART interrupt; Power consumption:28mA
0xA5 ： Deep sleep,wake up by UART interrupt; module reboot; Power
consumption:3mA
45
Page 50
0x00：write 0 to wake up module
Zone bit
0x00E0 （Only read Zone bit）
Data bit
Function
Bit 7-0
Product model
0x05：GM66 Module
Zone bit
0x00E1（Only read Zone bit）
Data bit
Function
Bit 7-0
Hardware Version
0x64：V1.00
0x6E：V1.10
0x78：V1.20
0x82：V1.30
0x8C：V1.40
......
Zone bit
0x00E2 （Only read Zone bit）
Data bit
Function
Bit 7-0
Software Version
0x64：V1.00
0x6E：V1.10
0x78：V1.20
0x82：V1.30
0x8C：V1.40
......
Zone bit
0x00E3 （Only read Zone bit）
Data bit
Function
Bit 7-0
Year of software (Add 2000)
0x0F：2015
0x10：2016
0x11：2017
......
Zone bit
0x00E4（Only read Zone bit）
Data bit
Function
Bit 7-0
Software month
0x09：September
0x0A：Oct.
46
Page 51
0x0B：Nov.
......
Zone bit
0x00E5（Only read Zone bit）
Data bit
Function
Bit 7-0
Software date
0x09：9
0x0A：10
0x0B：11
......
47
Page 52
9 Appendix A：Common serial port instruction
Function
Instruction
Baud rate to 9600
7E 00 08 01 00 D9 D3 20 38
Save settlements to EEPROM
7E 00 09 01 00 00 DE C8
Find baud rate
7E 00 07 01 00 2A 02 D8 0F
Return information
Baud rate
02 00 00 02 C4 09 SS SS
1200
02 00 00 02 71 02 SS SS
4800
02 00 00 02 39 01 SS SS
9600
02 00 00 02 D0 00 SS SS
14400
02 00 00 02 9C 00 SS SS
19200
02 00 00 02 4E 00 SS SS
38400
02 00 00 02 34 00 SS SS
57600
Module will return following info after mainframe send serial port instruction - find baud rate
PS：SS SS= check value。
48
Page 53
10 Appendix B：Code ID List
Type of Bar Code
Corresponding
character
Zone bit address
EAN-13d0x91
EAN-8d0x92
UPC-Ac0x93
UPC-E0c0x94
UPC-E1c0x95
Code 128j0x96
Code 39b0x97
Code 93i0x98
Codabara0x99
Interleaved 2 of 5
e
0x9A
Industrial 2 of 5
D
0x9B
Matrix 2 of 5
v
0x9C
Code 11H0x9D
MSI-Plessey
m
0x9E
GS1 Databar(RSS-14)
R
0x9F
GS1 Databar Limited(RSS)
R
0xA0
GS1 Databar Expanded(RSS)
R
0xA1
QR CodeQ0xA2
Data Matrixu0xA3
PDF 417r0xA4
49
Page 54
11 Appendix C：ASCII
Base 16 Hexadecimal
Decimalism
Character
00
0
NUL
01
1
SOH
02
2
STX
03
3
ETX
04
4
EOT
05
5
ENQ
06
6
ACK
07
7
BEL
08
8
BS
09
9
HT
0a
10
LF
0b
11
VT
0c
12
FF
0d
13
CR
0e
14
SO
0f
15
SI
10
16
DLE
11
17
DC1
12
18
DC2
13
19
DC3
14
20
DC4
15
21
NAK
16
22
SYN
17
23
ETB
18
24
CAN
19
25
EM
1a
26
SUB
1b
27
ESC
50
Page 55
Base 16
Decimalism
Character
1c
28
FS
1d
29
GS
1e
30
RS
1f
31
US
20
32
SP
21
33
!
22
34
"
23
35
#
24
36
$
25
37
%
26
38
&
27
39
`
28
40
(
29
41
)
2a
42
*
2b
43
+
2c
44
,
2d
45
-
2e
46
.
2f
47
/
30
48
0
31
49
1
32
50
2
33
51
3
34
52
4
35
53
5
36
54
6
37
55
7
38
56
8
39
57
9
3a
58
:
51
Page 56
Base 16
Decimalism
Character
3b
59
;
3c
60
<
3d
61
=
3e
62
>
3f
63
?
40
64
@
41
65
A
42
66
B
43
67
C
44
68
D
45
69
E
46
70
F
47
71
G
48
72
H
49
73
I
4a
74
J
4b
75
K
4c
76
L
4d
77
M
4e
78
N
4f
79
O
50
80
P
51
81
Q
52
82
R
53
83
S
54
84
T
55
85
U
56
86
V
57
87
W
58
88
X
59
89
Y
52
Page 57
Base 16
Decimalism
Character
5a
90
Z
5b
91
[
5c
92
\
5d
93
]
5e
94
^
5f
95
_
60
96
'
61
97
a
62
98
b
63
99
c
64
100
d
65
101
e
66
102
f
67
103
g
68
104
h
69
105
i
6a
106
j
6b
107
k
6c
108
l
6d
109
m
6e
110
n
6f
111
o
70
112
p
71
113
q
72
114
r
73
115
s
74
116
t
75
117
u
76
118
v
77
119
w
78
120
x
53
Page 58
Base 16
Decimalism
Character
79
121
y
7a
122
z
7b
123
{
7c
124
|
7d
125
}
7e
126
~
7f
127
DEL
54
Page 59
12 Appendix D：data code
0 ~ 9
0 1
2 3
A – F
4 5
6 7
8 9
A B
55
Page 60
C D
E F
56
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