WJ69产品说明书V1.1.pdf

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Product features:
• Encoder decoding and conversion into standard Modbus RTU
protocol • Can be used as encoder counter or speed measurement
• Support 8 encoders counting at the same time, can identify
forward and reverse • Can also be set as 16 independent DI high-
speed counters • Encoding The count value of the counter
supports automatic saving when power is off • 3000V isolation
between DI input and power supply • Clear and set count value
through RS-485/232 interface • Wide power supply range: 8 ~ 32VDC
• High reliability, convenient programming, easy Application •
Standard DIN35 guide rail installation, convenient for centralized
wiring • User programmable module address, baud rate, etc. •
Dimensions: 120 mm x 70 mm x 43mm
Figure 2 Internal block diagram of WJ69 module
Modbus RTU
Shenzhen Weijunrui Technology Co., Ltd. www.wayjun.cn Tel: 0755-83356002
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The WJ69 product realizes the signal acquisition between the sensor and the host, and is used to decode the encoder signal. WJ69 series products can be
applied in RS-232/485 bus industrial automation control system, automatic machine tool, industrial robot, three-coordinate positioning system, displacement
measurement, stroke measurement, angle measurement, speed measurement, flow measurement, product counting and so on. Products include signal isolation, pulse
signal capture, signal conversion and RS-485 serial communication. Each serial port can connect up to 255 WJ69 series modules. The communication method
adopts ASCII code communication protocol or MODBUS RTU communication protocol. programming.
high-speed counter,
Typical applications:
• Encoder pulse signal measurement •
Flow meter pulse counting or flow measurement •
Production line product counting • Logistic parcel
quantity counting • Proximity switch pulse signal
measurement • Encoder signal remote transmission
to industrial computer • Smart factory and industrial
Internet of things • Replacement PLC directly
transmits data to the control center
Figure 1 Appearance of WJ69 module
module
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WJ69
encoder pulse counter or road
8-way encoder pulse counter or 16-way DI high-speed counter, Modbus RTU module WJ69
product description:
Machine Translated by Google

WJ69 - ÿ
Configuration information such as state is stored in non-volatile memory EEPROM.
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Communication interface: 1 standard RS-485 communication interface or 1 standard RS-232 communication interface, please specify when ordering.
Communication protocol: supports two protocols, the character protocol defined by the command set and the MODBUS RTU communication protocol. The module automatically recognizes the commun
General parameters of WJ69:
(typical @ +25ÿ, Vs is 24VDC) Input type: Encoder
AB signal input, 8 channels (A0/B0~ A7/B7). Low level: Input < 1V High level: Input 3.5 ~ 30V
Frequency range 0-10KHz (all channels input at the same time), single
channel can support 50KHz input. Encoder counting range - 2147483647 ~
+2147483647, automatically saved when power off DI counter range 0 ~ 4294967295, reset when power off Input
resistance: 30Kÿ Communication: Protocol RS-485 or RS-232 standard character protocol and MODBUS RTU
communication protocol
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Modbus RTU
It can realize network communication with various brands of PLC, RTU or computer monitoring system.
Baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be selected by software Address (0~255) can be selected by
software Communication response time: 100 ms Maximum working power supply: +8 ~ 32VDC wide power supply range,
internal Anti-reverse polarity and overvoltage protection circuit Power consumption: less than 1W
8-way encoder signal input or 16-way independent counter, can be connected to dry contact and wet contact, please refer to the wiring diagram for details.
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Communication
interface 485: output is RS-485 interface
232: output is RS-232 interface
2. Communication protocol
Selection example 1: Model: WJ69-232 means the output is RS-232 interface Selection example
2: Model: WJ69-485 means the output is RS-485 interface
The communication interface has high anti-interference design, ±15KV ESD protection, and the communication response
time is less than 100mS. 3. Anti-jamming checksum can be set as required. There are transient suppression diodes inside the
module, which can effectively suppress various surge pulses, protect the module, and internal digital filtering can also well suppress power frequency interference from the
power grid.
high-speed counter,
WJ69 series products are designed and manufactured according to industrial standards, with no isolation between signal input and output, strong anti-interference ability and high
reliability. Working temperature range - 45ÿÿ+85ÿ.
Function
introduction: WJ69 remote I/O module can be used to measure eight encoder signals, and can also be set as 16 independent counters or DI status measurement. 1.
Signal input
module
Data format: 10 digits. 1 start bit, 8 data bits, 1 stop bit. No checksum. Communication address (0~255) and
baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be set;
WJ69
encoder pulse counter or
The longest distance of the network can be up to 1200 meters, connected by twisted-pair shielded cables.
WJ69 series products are intelligent monitoring and control systems based on single-chip microcomputers, all user-set addresses, baud rates, data formats, checksums
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product model:

9 NC empty pin
10 DATA+ RS-485 signal positive terminal
B6 Encoder 6 signal B input terminal
19 B2 Encoder 2 signal B input terminal
16
4
12 PW+ Positive power supply
6
11
Modbus RTU
21 A3 Encoder 3 signal A input terminal
Pin Name Description
Pin definition:
pin name description
WJ69
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7 DICOM input signal common port
Figure 3 WJ69 module wiring diagram
module
26 DGND Signal ground table 1
pin definition
8
2
8 5V
DATA- RS-485 signal negative terminal
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20 DGND Signal ground
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13 GND Negative terminal of power supply
Operating temperature: - 45 ~ +80°C
Operating humidity: 10 ~ 90% (non-
condensing) Storage temperature: - 45 ~
+80°C Storage humidity: 10 ~ 95% (non-
condensing) Isolation withstand voltage: DI input and power supply 3000V isolation between
the communication interface and the power supply. Dimensions: 120mm x 70mm x 43mm
high-speed counter,
1 DGND Signal ground
5V power distribution

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road
PNP type encoder
Modbus RTU
push-pull encoder
NPN type encoder with pull-up resistor
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NPN type encoder
high-speed counter,
level input
Encoder signal input wiring diagram
module
WJ69
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DI Counting Input Wiring Diagram
Dry contact input

The module enters the default state. In this state, the configuration of the module is as follows:
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(Addr) The address code of the module, if not specified below, the value range is from 00 to FF (hexadecimal). 2- characters
Modbus RTU
(Command) Displays the command code or variable value. Variable length [data] Some data required by the output command. Variable Length [checksum] Checksum in
parentheses indicates an optional parameter and is only required if checksum is enabled. 2- A control code used for character recognition, (cr) is used as the carriage return
terminator,
and its value is 0x0D. 1- character (cr) [Checksum] is required when checksum is enabled. It occupies 2-characters. Both commands and responses must have the checksum
attribute attached. Checksums are used to check all input commands to help you spot host-to-module command errors and module-to-host response
errors. The
checksum character is placed after the command or response character and before the carriage return. Calculation method: two characters, a hexadecimal number, is the
sum of the ASCII code values of all the characters sent before, and then ANDed with the hexadecimal number 0xFF.
A character protocol command consists of a series of characters, such as a prefix, an address ID, variables, an optional checksum byte, and a command terminator
(cr) to display. The host only commands one WJ69 module at a time, except the synchronous command with the wildcard address “**”. Command format: (Leading Code)
(Addr)(Command)[data][checksum](cr)
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(Leading code) The leading code is the first letter in the command. All commands need a command prefix, such as %,$,#,@,...etc. 1- character
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A9=(0x21+0x30+0x30+0x30+0x32+0x30+0x36+0x30+0x30) AND 0xFF
high-speed counter,
The address code is 00,
the baud rate is 9600 bps,
and the checksum is
prohibited. At this time, the parameters such as the baud rate, checksum status and other parameters of the WJ69 module can be modified through configuration commands. When you are not
sure about the specific configuration of a certain module, you can also turn the INIT switch to the INIT position to make the module enter the default state, and then reconfigure the module.
Response to command:
Note: Please turn the INIT switch to the NORMAL position for normal use.
module
Application example: disable checksum (checksum)
user command $002 (cr) module
response ! 00020600 (cr) enable checksum
(checksum) user command $002B6 (cr)
module response ! 00020600 A9 (cr) '$' =
0x24 '0' = 0x30 '2' = 0x32
WJ69
Reply messages depend on various commands. Responses also consist of several characters, including header codes, variables and end identifiers. The first response signal
B6=(0x24+0x30+0x30+0x32) AND 0xFF ‘!’ = 0x21 ‘0’ = 0x30
‘2’ = 0x32 ‘6’ = 0x36
WJ69 character protocol command set:
The module’s factory initial settings are as follows:
The address code is 01 The baud rate is 9600 bps
The checksum is prohibited If the RS-485 network
is used, a unique address code must be assigned,
and the address code value is The hexadecimal number is between 00 and FF. Since the address codes of the new modules are the same, their addresses will be
inconsistent with other modules, so when you build the system, you must reconfigure the address of each WJ69 module. You can modify the address of the WJ69 module
through configuration commands after connecting the power cable of the WJ69 module and the RS485 communication cable. The baud rate and checksum status also need
to be adjusted according to the user's requirements. Before modifying the baud rate and checksum state, the module must first enter the default state, otherwise it cannot
be modified. The method to let the module enter the default state: There is an INIT switch on the side of the WJ69 module, which is on the side of the module. Turn the INIT
switch to the INIT position, and then turn on the power, at this time
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2. Commands must be entered in capital
letters. 3. (cr) represents the carriage return character on the keyboard, do not write it out directly, it should be the carriage return key (Enter key).
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Description: Read the working mode of the encoder.
Command format: $AA4(cr) Read the working mode of the encoder. Parameter
description: AA module address, the value range is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as the ASCII code of each character. For
example, the address 01 is changed to 30H and 31H in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
Modbus RTU
Response format: ! BBBBBBBB (cr) represents the working mode of 8 encoder channels, 8 numbers, and the sequence is encoder 7~encoder 0,
Response format: ! AA(cr) means the setting is successful
Parameter description: BBBBBBBB represents the working mode of 8 encoder channels, 8 numbers, the order of arrangement is encoder 7~encoder 0,
the value is 0: working mode 0; the value is 1: Working mode 1 Application example: User command (character
format) $01311110000 (cr) Module response (character format) ! 01(cr) Description: Set encoder 7~encoder 4 to work mode 1, set encoder 3~encoder
Device 0 is working mode 0
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2. Read the working mode of the encoder
3. Read switch state command
description: read back the switch state of all encoder input channels from the module.
Command format: #AA(cr) Parameter description: # delimiter. Hexadecimal is 23H AA
module address, the value range is 00ÿFF (hexadecimal). The factory address is 01,
converted into hexadecimal as ASCII for each character
1. Set the working mode of the encoder
Description: set the working mode of the encoder, 0 or 1, the factory default is 0. After the working mode is modified, the module must be restarted to take effect.
high-speed counter,
code. For example, the address 01 is changed to 30H and 31H
in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in
hexadecimal system. Response format: > CCCCCCCC,DDDDDDDD (cr) command is valid. ?
01(cr) Invalid command or illegal operation. Parameter description: > delimiter.
The hexadecimal system is 3EH CCCCCCCC represents the read encoder input switch state, 8
numbers, and the sequence is B7A7 B6A6 B5A5 B4A4,
Working mode 0: Encoder AB signal input Working
mode 1: Two independent counter inputs Note: The
following command note (working mode 0) indicates that the data is valid only when the working mode of the encoder is 0. The
remark (working mode 1) indicates that the data is valid only when the encoder working mode is 1. Command format:
$AA3BBBBBBBB(cr) Set the working mode of the encoder. It will take effect after reboot. Parameter description: AA module address, the value range
is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as the ASCII code of each character. For example, the address 01 is changed to 30H and 31H
in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
module
Value 0: working mode 0; value 1: working mode 1
WJ69
Application example: User command (character format) $014(cr) module
response (character format) ! 11110000 (cr) Description: encoder
7~encoder 4 is working mode 1, encoder 3~encoder 0 is working mode 0
There are two codes, '!' or '>' for valid commands and '?' for invalid commands. By checking the response information, you can monitor whether the command
is valid. Note: 1. In some cases, many commands use the same command format. Make sure that the address you use is correct in a command, if you use the wrong address,
and this address represents another module, then the command will take effect in the other module, thus generating an error.
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,
N means read encoder N counter data command. (cr)
Terminator, enter key of upper computer, 0DH in hexadecimal system.
Response format: !+AAAAAAAAAA(cr) Application example 1: User command (character
format) #012(cr) module response (character format) !+0012345678, +0012345678, +0012345678,
+0012345678, +0012345678,
16 Modbus RTU
Description: Read the data of the encoder counter, you can read all encoders, or you can read a single encoder. '+' means forward rotation, '-' means reverse rotation.
Command format: #AA2(cr)
5. Read the encoder input frequency command (working mode
0) description: read the frequency input by the encoder, you can read all encoders, and you can also read a single encoder. '+' means forward rotation, '-' means reverse
rotation. Command format: #AA3
WJ69
AA Module address, the value range is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as ASCII for each character
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A6: low level B6: low level A7: low level B7: low level The input switch status of the module is 00000111
and the arrangement order is B3A3 B2A2 B1A1 B0A0 A0: high level B0: high level A1: high level B1: low
level
+AAAAAAAAAA, +AAAAAAAAAA, +AAAAAAAAAA, +AAAAAAAAAA (cr)
module
The order of arrangement is B7A7 B6A6 B5A5 B4A4
3 means read encoder 0~encoder 7 to input frequency command. (cr)
Response format: !+AAAAAA.AA,+AAAAAA.AA,+AAAAAA.AA,+AAAAAA.AA, +AAAAAA.AA, +AAAAAA.AA, +AAAAAA.AA,+AAAAAA.AA (cr) Command
format: # AA3N Read encoder N input frequency
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,
in hexadecimal. 2 means read counter data command.
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+0012345678, +0012345678, +0012345678 (cr) Explanation: The count
value of all encoders is forward +12345678 Application example 2: User
command (character format) #0120(cr) Module response (character format) !-0012345678(cr )
Description: The count value of encoder 0 is inverted -12345678.
4. Read encoder counter data command (working mode 0)
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DDDDDDDD represents the read encoder input switch status, 8 numbers, the arrangement order is B3A3 B2A2 B1A1 B0A0, value 0: input low level;
value 1: input high level (cr) terminator, the host computer returns Car key, the hexadecimal value is 0DH. Application example:
User command (character format) #01(cr) Module response (character format) >00001010,00000111(cr) Description: The module input switch status
is 00001010 A4: low level B4: high level A5: low level B5: high level
code. For example, the address 01 is changed to 30H and 31H in hexadecimal.
high-speed counter,
A2: low level B2: low level A3: low level B3: low level
Command format: #AA2N(cr) read channel N count value
in hexadecimal. 2 means read encoder 0~encoder 7 counter data command.
(cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
Response format: !+AAAAAAAAAA, +AAAAAAAAAA, +AAAAAAAAAA, +AAAAAAAAAA,

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code. For example, the address 01 is changed to 30H and 31H in
hexadecimal. 3 means read input frequency command.
FROM
Modbus RTU
4 means read encoder 0~encoder 7 to input speed command. (cr)
Response format: !+AAAAA,+AAAAA,+AAAAA,+AAAAA, +AAAAA,+AAAAA,+AAAAA,+AAAAA (cr) Command format: #AA8N read encoder N input
speed
Response format: ! AA(cr) indicates successful setting
Application example 1: User command (character format) $0113+0000000000(cr) module response
(character format) ! 01(cr)
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!+001000.00,+001000.00,+001000.00,+001000.00,+001000.00, +001000.00,
+001000.00,+001000.00 (cr) Explanation: The input frequency value of all encoders is forward rotation +1KHz. Application example 2: User command
(character format) #0130(cr) Module response (character format) !-001000.00(cr) Explanation: The input frequency value of encoder 0 is inverted
-1KHz.
When means setting the count value of all encoders at the same time.
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6. Read the encoder input speed command (working mode 0)
Description: read the encoder input speed, you can read all encoders, and you can also read a single encoder. '+' means forward rotation, '-' means reverse
rotation. Command format: #AA4 AA module address, value range 00ÿFF (hexadecimal). The factory address is 01, converted into hexadecimal as ASCII for each
character
Parameter description: AA module address, the value range is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as the ASCII code of each
character. For example, the address 01 is changed to 30H and 31H in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in
hexadecimal system.
N means read encoder N input speed command. (cr)
high-speed counter,
N means read encoder N input frequency command.
Response format: ! +AAAAAA.AA (cr) Application example 1: User command (character
format) #013(cr)
Response format: ! +AAAAA (cr)
Application example 1: User command (character format) #014(cr) module
response (character format) !+01000,+01000,+01000,+01000 (cr) Description: all encoders The
input speed value is forward rotation + 1000 rotations. Application example 2: User command
(character format) #0140(cr) Module response (character format) !-01000(cr) Explanation: The input speed value of
encoder 0 is reverse -1000 rpm.
module
module response (character format )
WJ69
7. Command to modify the value of the encoder counter (working mode
0) Explanation: modify the value of the encoder counter, and it can also be set to zero to
restart counting. Command format: $AA1N+AAAAAAAAAA(cr) Modify the count value of encoder N, N is the code number of the encoder, the value is 0 ~ 7, set N to 'M'
hexadecimal. 4 means read the input speed command.
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8. Set the number of pulses per revolution of the encoder (working mode 0)
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9. Read the number of pulses per revolution of the encoder (working mode 0)
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Modbus RTU
Description: Reads the pulses per revolution of all encoders.
Command format: $AA6(cr) Read the number of pulses per revolution of all encoders, and the sequence is 0~7.
hexadecimal system.
AAAAA represents the number of pulses, such as 1000, 800 or 600, etc. (cr)
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Application example: User command (character format) $01S0(cr) module response
(character format) ! 01(cr)
Application example: User command (character format) $015100300(cr) Module response
(character format) ! 01(cr) Explanation: Set the number of pulses per
revolution of encoder 1 to 300.
10. Set whether the encoder count value is automatically saved when power is off
(working mode 0) Description: Set whether the encoder count value is automatically saved when power is off. The factory
default value is 1 (auto save). Command format: $AASW (cr) Set whether the encoder is automatically saved when the power is
off. Parameter description: AA module address, the value range is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as the ASCII code of each
character. For example, the address 01 is changed to 30H and 31H in hexadecimal.
Description: Set the number of pulses per revolution of the encoder. Set according to the parameters of the connected encoder. The factory default value is 1000. The encoder
speed can only be read after setting the correct number of pulses. Command format: $AA5NAAAAA (cr) Set the number of pulses per revolution of the encoder. Parameter
example, the address 01 is changed to 30H and 31H in hexadecimal. 5 Set the pulses per revolution command of the encoder.
high-speed counter,
S Set whether to automatically save the command when the encoder is powered off.
N Encoder code, value 0 ~ 7.
module
Response format: ! AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA (cr) Indicates the number of pulses per revolution of encoder 0~encoder 7.
WJ69
W 0: Do not automatically save; 1: Automatically save the encoder count value when
power off. (cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
Application example: User command (character format) $016(cr) module
response (character format) ! 01000, 01000, 01000, 01000, 01000, 01000, 01000, 01000 (cr) Description: The number of pulses per revolution
of all encoders is 1000.
Description: Set the count value of encoder 3 to 0. Application
example 2: User command (character format) $011M+0000000000(cr) Module response (character format) !
01(cr) Explanation: Set the count value of all encoders to 0. Application example 3:
User command (character format) $011M+0000003000(cr) Module response (character
format) ! 01(cr) Explanation: Set the count value of all encoders to +3000.
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Response format: !AAAAAAAAAA, AAAAAAAAAA, AAAAAAAAAA, AAAAAAAAAA, AAAAAAAAAA, AAAAAA
ÿÿÿÿÿ!AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA
16 Modbus RTU
hexadecimal. 6 means read input frequency command.
in hexadecimal. 5 means read counter data command.
WJ69
11. Read counter data command (working mode 1)
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12. Read input frequency command (working mode 1)
module
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hexadecimal. 5 indicates the command to read the counter data of channel A0~channel B7. The order of arrangement is
A0, B0, ~ ~ ~ , A7, B7. (cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
6 means read channel A0~channel B7 input frequency command.
A.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAAAA.AA,AAAA AA.AA,AAAAAA.AA, AAAAAA.AA (cr) Command formatÿ
#AA6N Read channel N input frequency.
AAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA, AAAAAAAAA,
AAAAAAAAA (cr) Command Formatÿ#AA5N(cr)
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Description: Set the encoder not to save the count value, and the count will be automatically cleared after power off.
N means read channel N input frequency command. N value: 0123456789ABCDEF, corresponding to A0~B7 (cr)
terminator, upper computer Enter key, hexadecimal is 0DH. Response format: !AAAAAA.AA (cr) Application
example 1: User command (character format) #016(cr)
high-speed counter,
Description: To read the data of the counter, you can read all channels or a single channel. Command
format: #AA5(cr)
Description: Read the input frequency, you can read all channels, and you can also read a single
channel. Command format: #AA6 AA module address, value range 00ÿFF (hexadecimal). The
factory address is 01, converted into hexadecimal as ASCII for each character
N means read channel N counter data command. N value: 0123456789ABCDEF, corresponding to A0~B7 (cr)
terminator, upper computer Enter key, hexadecimal is 0DH.ÿÿÿÿÿ!AAAAAAAAAA(cr) ÿÿÿÿ1ÿ ÿÿÿÿÿÿÿÿÿÿ #015(cr)ÿÿÿÿ
ÿÿÿÿÿÿ !0012345678, 0012345678, 0012345678, 0012345678, 0012345678, 0012345678, 0012345678, 0012345678, 0012345678, 0012345678,
0012345678, 0012345678, 0012345678, 0012345678, 0012345678, 0012345678 (cr) Description: The count value of all channels is
12345678. Application example 2: User command (character format) #015F(cr) Module response (character format) !0012345678(cr) Explanation:
The count value of channel B7 is 12345678.

FROM
13. Modify the value command of DI counter (working mode 1)
14. Set the counting mode of the DI counter (working mode 1)
Description: Set whether the DI counter counts on the rising edge or the falling edge. The factory setting is 00000000, 00000000. The default is rising edge counting
Modbus RTU
The settings take effect after the module restarts.
hexadecimal system. Response format: ! AA(cr) means the setting is successful Application example 1: User command (character format)
$012F+0000000000(cr) Module response (character format) ! 01(cr) Explanation: Set the count value of channel B7 to 0.
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Application example 2: User command (character format) $012M+0000000000(cr) Module response
(character format) ! 01(cr) Explanation: Set the count value of all channels to 0.
Application example 3: User command (character format) $012M+0000003000(cr)
Module response (character format) ! 01(cr) Explanation: Set the count value of all channels to +3000.
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Module response (character format) ! 01(cr) Description:
Set B7~A6 channel falling edge counting, set B5~A2 channel rising edge counting, set B1~A0 channel
falling edge counting.
high-speed counter,
Description: Modify the value of DI counter, or set it to zero to restart counting. Command
format: $AA2N+AAAAAAAAAA(cr) Modify the count value of counter N, N is the counter code, the value is 0123456789ABCDEF,
15. Read the counting mode of the DI counter (working mode 1)
Corresponding to A0~B7, setting N to 'M' means setting the count values of all channels at the same time.
module
Command format: $AA7AAAAAAAA,BBBBBBBB(cr) Set the counting mode of DI counter. Parameter description: AA
module address, the value range is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as the ASCII code of each character. For example, the
address 01 is changed to 30H and 31H in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
WJ69
Description: Read whether the DI counter is counting on the rising edge or falling
edge. Command format: $AA8(cr) Read the counting mode of DI counter. Parameter
description: AA module address, the value range is 00~FF (hexadecimal). The factory address is 01, converted into hexadecimal as ASCII for each character
Response format: ! AA(cr) means the setting is successful
Parameter description: AAAAAAAA represents the channel state, 8 numbers, the order of arrangement is B7A7 B6A6 B5A5 B4A4,
BBBBBBBB represents the channel state, 8 numbers, the order of arrangement is B3A3 B2A2 B1A1 B0A0, the
value is 0: counting on the rising edge of the channel; value 1: counting on the falling edge of
the channel Application example: User command (character format) $01711110000,00001111(cr)
Module response (character format) ! 001000.00,001000.001000.001000.001000.001000.001000.00,
001000.001000.001000.001000.001000.001000.001000.001000.001000.00,00,0000.00,00,001000.00 00.00 00.00 00.00 . 1KHz. Application example 2:
User command (character format) #016E(cr) Module response (character format) !001000.00(cr) Description: The input frequency value of channel
A7 is 1KHz.
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BBBBBBBB represents the channel status, 8 numbers, the arrangement order is B3A3 B2A2 B1A1 B0A0, the
value is 0: the rising edge counting of this channel; the value is 1: the falling edge counting
of this channel Application example: User command (character format) $018(cr) module Response (character format) !
11110000,00001111 (cr) Description: B7~A6 channel falling edge counting, B5~A2 channel rising edge
counting, B1~A0 channel falling edge counting.
17. Read the filter time of DI (working mode 1) Description:
read the filter time of all DI channels. Command format:
$01LR reads the filter time of all DIs, and the sequence is A0, B0, ~ ~ ~ , A7, B7. Response format: ! AAAAA, AAAAA,
AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA, AAAAA indicates the filter time of A0, B0, ~ ~ ~ , A7,
B7 . Application example: User command (character format) $01LR module response (character format) ! 00020, 00020, 00020, 00020, 00020, 00020,
00020, 00020, 00020, 00020, 00020, 00020, 00020, 00020, 0002 ( cr) Note: The filter time of all DI channels is 20mS.
Modbus RTU
18. Set all the parameters set by the above character command to restore the factory
settings. Note: The parameters set by the module using the above character commands are restored to the factory settings, and the
module restarts automatically after completion. Command format: $AA900(cr) Set parameters to restore factory settings. Parameter
example, the address 01 is changed to 30H and 31H in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in hexadecimal system.
Command format: $01LWNAAAAA Set the filter time of DI channel N. N is the counter code, the value is 0123456789ABCDEF, corresponding to A0~B7,
8 16
Setting N to 'M' means setting the filter time of all channels at the same time. AAAAA represents the filter time,
such as 0, 20 or 50, etc. Response format: ! 01(cr) means the setting is successful Application example: User
command (character format) $01LW100020 Module response (character format) ! 01(cr) Explanation: Set the filter time of B0 to 20, that is, 20mS.
high-speed counter,
16. Set the filter time of DI (working mode 1) Description:
Set the filter time of DI. 1 means 1mS, and the factory default is 0. Photoelectric switch input is set to 0, mechanical switch or relay input
Page 12 of 21
It is recommended to set it to 20~100. The settings will take effect after restarting.
module
Response format: ! AA(cr) means the setting is successful, and the module will restart
automatically. Application example: User command (character format) $01900 Module
response (character format) ! 01(cr) Explanation: The parameters
are restored to factory settings.
WJ69
19. Configure WJ69 module command
description: set address, baud rate, checksum status for a WJ69 module. Configuration information is stored in non-volatile memory EEPROM. Command format:
%AANNTTCCFF(cr) Parameter description: % delimiter.
code. For example, the address 01 is changed to 30H and
31H in hexadecimal. (cr) Terminator, enter key of upper computer, 0DH in
hexadecimal system. Response format: !AAAAAAAA,BBBBBBBB (cr) Indicates the counting mode of DI counter.
Parameter description: AAAAAAAAA represents the channel status, 8 numbers, the arrangement order is B7A7 B6A6 B5A5 B4A4,
road

Table 2 Baud rate code
10: Hexadecimal complement (Twos complement) (cr)
terminator, upper computer Enter key, hexadecimal is 0DH. Response format: !AA(cr) command is valid.
?AA(cr) command invalid or illegal operation, or the configuration jumper was not installed before changing the baud rate or
checksum. Parameter description: ! Delimiter, indicating that the command is valid. ? Delimiter, indicating that the command is invalid.
Other instructions: If you configure the module for the first time, AA=00, NN is equal to the new address. If the reconfiguration module changes the address, input range,
and data format, AA equals the currently configured address, and NN equals the current or new address. If you want to reconfigure the module to
change the baud rate or checksum state, you must install the configuration jumper to make the module enter the default state. At this time, the module
address is 00H, that is, AA=00H, and NN is equal to the current or new address. If the format is wrong or the communication is wrong or the address
does not exist, the module will not respond. Application example: User command %0011000600(cr) Module response ! 11(cr) Explanation: % delimiter.
04
4800 baud
16
Bit2 Bit 0
Modbus RTU
06
19200 baud
38400 baud
07
WJ69
NN represents the hexadecimal address of the new module, and the value of NN ranges from 00 to FF.
road
Table 3 Data format, checksum code
Page 13 of 21
09
module
CC represents the baud rate code in hexadecimal.
baud rate
115200 baud
8
Baud rate code
2400 baud
FF uses 8 hexadecimal bits to represent the data format and checksum. Note that bits2 to bits5 do not have to be set to zero.
Bit7 Bit 6 Bit 5 Bit 4 Bit 3
Bit1-bit0: data format bits. 00: Engineering Units
AA represents the terminator of the
input module address (cr), the upper computer enter key, and the hexadecimal value is 0DH.
9600 baud
05
FROM
Bit 1
00 means the original address of the WJ69 module you want to configure
is 00H. 11 means the hexadecimal address of the new module is 11H. 00
type code, WJ69 product must be set to 00. 06 means the baud rate is
9600 baud. 00 indicates that the data format is engineering units, and
checksum is prohibited.
AA Module address, the value range is 00~FF (hexadecimal).
57600 baud
high-speed counter,
TT represents the type code in hexadecimal. WJ69 products must be set to 00.
0A
08
Bit7: reserved bit, must be set to zero Bit6:
checksum status, 0: disabled; 1: enabled Bit5-bit2: not used, must
be set to zero.

FROM
AA Module address, the value range is 00~FF (hexadecimal). 2 means
the end character of the read configuration status command (cr), the
upper computer enter key, and the hexadecimal value is 0DH. Response
format: !AATTCCFF(cr) command is valid.
CC stands for Baud Rate Code. See Table 2 FF
See Table 3 (cr) Terminator, upper computer
Enter key, hexadecimal is 0DH. Other instructions: If the format is wrong
or the communication is wrong or the address does not exist, the module will not respond.
Application example: User command $302(cr) Module response !300F0600(cr) Explanation: !
Delimiter.
Modbus RTU
30 means WJ69 module address is 30H. 00 indicates
the input type code. 06 means the baud rate is 9600
baud. 00 disables checksumming.
AA stands for input module address.
8 16
TT stands for Type Encoding.
high-speed counter,
Invalid command or illegal operation.
?AA(cr)
Parameter description: ! Delimiter.
module
WJ69
Page 14 of 21
20. Read configuration status
command description: Read configuration for a specified WJ69
module. Command format: $AA2(cr) Parameter description: $
delimiter.
road

Read Holding Register Read Holding Register Write Single
Coil
06
16 Modbus RTU
Write Single Register Write a single register
16
Read Coil Status
Write Multiple Coils Write Multiple Coils
WJ69
The method to let the module enter the
default state: There is an INIT switch on the side of the WJ69 module, which is on the side of the module. Turn the INIT switch to the INIT position, and then
turn on the power, at this time the module enters the default state. In this state, the module temporarily returns to the default state: the address is 01, the baud rate is
9600. When not sure about the specific configuration of a certain module, the user can query the address and baud rate registers 40201-40202 to get the actual address
and baud rate of the module, and can also modify the address and baud rate as needed. Note: Please turn the INIT switch to the NORMAL position for normal use.
road
Description
Address 0x Start
Address 4x Start
Address 0x Start
Address 4x Start
Address 0x Start Address 4x Start
module
For the function codes supported by WJ69 , see the following for
details: Function codes
03
Page 15 of 21
8
Name
read coil status
05
15
Write Single Coil
FROM
Modbus RTU communication protocol:
The factory default setting of the module is as
follows: Modbus address is 01 Baud rate is 9600
bps Data format: 10 bits. 1 start bit, 8 data bits, 1
stop bit. No checksum.
Support Modbus RTU communication protocol, and the command format follows the standard Modbus RTU communication protocol.
high-speed counter,
01
Write Multiple Registers Write multiple registers

The switch value of B1 input is read-only
module
B4 counting mode read/write
00003
The digital value of A0 input is read-only
4
00037
00044
Attribute data description
38
B2's count mode read/write
00010
11
45
Modbus RTU
The counting method of B6 is read/write
The switching value of B7 input is read-only
1
8
00041
42
A1's count mode read/write
The switching value of A2 input is read-only
00007
00014
15
The digital value of B0 input is read-only
00004
5
00038
00048
39
46
Counting method of channels A0 ~ B7
A3's counting method read/write
00011
12
00034
00045
35
9
00042
43
Page 16 of 21
00008
00015
(The default value is 0)
0 is rising edge counting, 1
is falling edge counting The
setting will take effect after the module
restarts. Normally, there is no need to modify it, just use the default value.
32
8
The digital value of A6 input is read-only
47
The counting method of A0 read/write
00012
13
00046
36
road
A7's counting mode read/write
WJ69
00001
2
A2's count mode read/write
The switch value of A3 input is read-only
00009
00016
10
The level state of the encoder input point
0 means low level input, 1 means high
level input
00035
16
33
The counting method of B5 is read/write
00005
6
00039
40
00013
14
00047
37
high-speed counter,
B7's counting mode read/write
Register address description of WJ69
supports register address 0X (PLC) of function code
01, 05 and 15 address (PC, DCS) data content
00002
3
00036
00043
44
00033
34
FROM
A6 counting mode read/write
00006
0
7
00040
41
The counting mode of B0 is read/write

28~29
40057~40058
38~39
60~61
40002
40023~40024
40035~40036
40049~40050
52~53
0
8
7
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
20~21
40063~40064
Page 17 of 21
Encoder 0 Counting
Encoder 1 Counting
Encoder 2 Counting
Encoder 3 Counting
Encoder 4 Counting
Encoder 5 Counting
Encoder 6 Counting
Encoder 7 Counting
40005
40029~40030
40041~40042
44~45
58~59
encoder pulse counter or Modbus RTU
3
26~27
40055~40056
36~37
40001
40021~40022
18~19
40033~40034
40047~40048
50~51
module
40008
Channel A0 Counting
Channel B0 Counting
Channel A1 Counting
Channel B1 Counting
Channel A2 Counting
Channel B2 Counting
Channel A3 Counting
Channel B3 Counting
Channel A4 Counting
Channel B4 Counting
Channel A5 Counting
Channel B5 Counting
Channel A6 Counting
Channel B6 Counting
Channel A7 Counting
Channel B7 Counting
6
40061~40062
Encoder 0 working mode read/write encoder working mode,
integer, 0 or 1, encoder 1 working mode read/write
factory default is 0 (it needs to be restarted to take effect after modification) working mode 0: encoder
AB signal Input encoder 2 working mode read/write
working mode 1: two independent counters input encoder
3 working mode read/ write When the working mode is 0, the data has the read/write effect of encoder 5 working
mode . Remark (working mode 1) indicates that the data is
valid only when the working mode of encoder 6 is read/write encoder working mode is 1. Encoder 7 working
mode read/write
40004
40027~40028
40039~40040
42~43
56~57
FROM
2
24~25
(0x00000000~0xFFFFFFFF), the counter is cleared and
directly writes 0 to the corresponding register, and other
values can also be written as required.
40053~40054
34~35
The data of encoder 0~7 counters (working mode 0)
is a signed long integer, and the storage order is
CDAB. Hexadecimal format, negative numbers use two's
complement, positive numbers (0x00000000~0x7FFFFFFF),
negative numbers (0xFFFFFFFF~0x80000001), clear the
counter and write 0 directly to the corresponding register, and
you can also write other values as needed .
40019~40020
16~17
40045~40046
48~49
high-speed counter,
5
Support register address 4X (PLC) address (PC,
DCS) data content of function code 03, 06 and 16
40007
30~31
40059~40060
62~63
40003
40025~40026
40037~40038
40051~40052
40~41
54~55
16
1
22~23
The channel A0~B7 counter (working mode 1) data is
an unsigned long integer, and the storage order is
CDAB. in hexadecimal format,
32~33
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
40017~40018
40006
40031~40032
40043~40044
46~47
road WJ69
4

78
The number of pulses of the encoder (working
mode 0) is an unsigned integer (the factory default value is 1000),
which is set according to the number of pulses per revolution of
the encoder. After setting, registers 40101~40108 are the speed
of the corresponding channel.
72
16
40089
Modbus RTU
40074
74
WJ69
40075
75
road
40068
Page 18 of 21
40077
module
67
40079
77
8
Encoder 0 pulse count read/write encoder 1
pulse count read/write encoder 2 pulse count
read/write encoder 3 pulse count read/write
encoder 4 pulse count read/write encoder 5
pulse count Read/write the number of pulses
of encoder 6 Read/write the number of pulses
of encoder 7 Read/write
40080 79
Parameters restore factory settings Read/write is set to FF00, then the parameters of all registers of the module will be
restored to factory settings, and the module will automatically restart after completion
73
40073
FROM
88
Address 4X (PLC) Address (PC, DCS) Data content
76
high-speed counter,
Write unsigned integer to count clear register, the default is 0, modify this register to clear encoder counter or channel
counter. After modification, the register will automatically restore
to 0. Write 10: set the count value of encoder 0 to 0, write 11: set
the count value of encoder 1 to 0, write 12: set the count value
of encoder 2 to 0, write 13: set the count value of encoder 3 0,
write 14: set the count value of encoder 4 to 0, write 15: set the
count value of encoder 5 to 0, write 16: set the count value of
encoder 6 to 0, write 17: set the count value of encoder 7 The
value is 0, write 18: set the count value of all encoders to 0,
write 20: set the count value of channel A0 to 0, write 21: set the
count value of channel B0 to 0, write 22: set the count value of
channel A1 0, write 23: set the count value of channel B1 to 0,
write 24: set the count value of channel A2 to 0, write 25: set the
count value of channel B2 to 0, write 26: set the count value of
channel A3 to 0 , write 27: set the count value of channel B3 to
0, write 28: set the count value of channel A4 to 0, write 29: set
the count value of channel B4 to 0, write 30: set the count value
of channel A5 to 0, write Enter 31: set the count value of channel
B5 to 0, write 32: set the count value of channel A6 to 0, write
33: set the count value of channel B6 to 0, write 34: set the count
value of channel A7 to 0, write 35 : set the count value of channel
B7 to 0, write 36: set the count value of all channels to 0. Writing
other values has no effect.
40078
40076

142~143
40175~40176
156~157
Filter time of channels
A0~B7
102
40137~40138
40153~40154
40167~40168
170~171
40107
8
40129~40130
40145~40146
134~135
148~149
180~195
100
40105
40143~40144
40159~40160
162~163
40217~40232
107
140~141
40173~40174
154~155
40103
40135~40136
132~133
40151~40152
40165~40166
168~169
module
105
The channel pulse frequency (working mode 1)
data is a 32-bit floating point number, and the
storage order is CDAB. If the device cannot read
floating-point numbers, it can read registers
The pulse frequency (working mode 0) data of the
encoder is a 32-bit floating point number, and the
storage sequence is CDAB.
146~147
40181~40196
40101
103
40141~40142
40157~40158
160~161
174~175
FROM
40108
138~139
40149~40150
40171~40172
152~153
Page 19 of 21
101
40133~40134
130~131
40163~40164
166~167
high-speed counter,
Encoder 0 Frequency Read Only Encoder
1 Frequency Read Only Encoder 2
Frequency Only Encoder 3 Frequency
Read Only Encoder 4 Frequency Only
Encoder 5 Read Only Frequency Encoder
5 Frequency Read Only Encoder 6
Frequency Read Only Encoding The
frequency of device 7 is read-only
Address 4X (PLC) Address (PC, DCS) Data content
40106
Channel A0 frequency read-only Channel
B0 frequency read-only Channel A1
frequency read-only Channel B1
frequency read-only Channel A2
frequency read-only Channel A3
frequency read-only Channel A4 The
frequency of channel B4 is read-only The
frequency of channel A5 is read-only The
frequency of channel B7 is read-only
144~145
Filter time (working mode 1) of read/write channel A0~B7 unsigned
integer. Each register corresponds to the filter time of a
channel. 1 means the filter time is 1mS, the photoelectric
switch input is set to 0, and the mechanical switch or relay
input is recommended to be set to 20~100. The settings
will take effect after restarting.
40104
40139~40140
40155~40156
40169~40170
158~159
172~173
16
106
136~137
40147~40148
150~151
40102
40131~40132
104
128~129
40161~40162
164~165
road WJ69
The rotational speed of encoder 0 is read-only The rotational
speed of encoder (working mode 0) The
rotational speed of encoder 1 is read-only signed integer, positive and negative means
forward and reverse. The rotational speed is
converted from the read-only pulse number of the
rotational speed of encoder 2 set in registers 40073~40080. Encoder 3 speed read only Encoder 4 speed
read only Encoder 5 speed read only Encoder 6 speed
read only Encoder 7 speed read only

01
43
Page 20 of 21
0x0004 = 2400 bps, 0x0005 =
4800 bps 0x0006 = 9600 bps,
0x0007 = 19200 bps 0x0008 =
38400 bps, 0x0009 = 57600 bps
0x000A = 115200bps Read-only
high bit: 0x0009 low bit:
C5
FF
If the module replies: 01060043000AF819, it means the setting is successful, and the count value of encoder 0 is changed to 0.
The data is a 16-bit unsigned integer, and each register corresponds
to the frequency of a channel.
8
THIS
00
76
00
40201
210
THAT
C5
19
F8
01
90
76
00
40202
10
C4
C1
THAT
00
module
216~231
01
02
90
43
Attribute data description Read/
write integer, take effect after restart, range 0x0000-0x00FF Read/write integer,
take effect after restart, range 0x0004-0x000A
40211
03
20
F8
00
FROM
Communication example 1: If the module address is 01, send in hexadecimal: 010300100002C5CE to get the register data.
04
02
C4
01
19
201
03
FF
03
06
high-speed counter,
00
Address 4X (PLC) Address (PC, DCS) Data Content Module Address Baud Rate
40217~40232
Communication example 2: If the module address is 01, send in hexadecimal: 010300200002C5C1 to get the register data.
04
06
module name
If the module replies: 010304CA90FFFFC476 , the read data is 0xFFFFCA90, which is -13680 in decimal, which means that the current count value of encoder 0 is -13680.
03
FF
0A
01
16
Table 5 Modbus Rtu register description
01
00
Communication example 3: If the module address is 01, send in hexadecimal: 01060043000AF819 , that is, clear the count value of encoder 0.
0A
200
Frequency of channel A0~B7 Pulse frequency of read-only channel A0~B7 (working mode 1)
FF
If the module replies: 010304CA90FFFFC476 , the read data is 0xFFFFCA90, which is 4294953616 in decimal, which means that the current count value of channel A0 is 4294953616.
road WJ69
00
Module address read holding register register address high register address low register quantity high register quantity low CRC check low CRC check high
Module address read the number of bytes of holding register data data 1 high data 1 low data 2 high data 2 low CRC check low CRC check high
Module address read holding register register address high register address low register quantity high register quantity low CRC check low CRC check high
Module address write single holding register register address high register address low data high data low CRC check low CRC check high
Module address read the number of bytes of holding register data data 1 high data 1 low data 2 high data 2 low CRC check low CRC check high
Module address write single holding register register address high register address low data high data low CRC check low CRC check high

road
FROM
Can be installed on standard DIN35 rail
Version number:
V1.1 Date: August 2021
Modbus RTU
8
Copyright: Copyright © 2021 Shenzhen Weijunrui Technology
Co., Ltd. No part of this manual may be copied, distributed, translated or transmitted without permission. This manual is subject to modification and update without prior notice.
16
Trademarks: Other trademarks and copyrights mentioned in this manual belong to their respective owners.
high-speed counter,
Warranty:
Within two years from the date of sale of this product, if the user complies with the storage, transportation and use requirements, and the product quality is lower than the technical indicators, it can be returned to the factory for fre
module
maintenance fee. If damage is caused by violation of operating regulations and requirements, the device cost and maintenance fee shall be paid.
WJ69
Page 21 of 21
Dimensions: (unit: mm)

WJ69产品说明书V1.1.pdf

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