0-10V/0-5V/4-20mA to RS-232 Modbus RTU Communication Protocol Switching Input/Output Data Collection

• Customization: Available
• Conductive Type: Bipolar Integrated Circuit
• Integration: GSI
• Model NO.: WJ30
• Output Type: Current Output
• Resolution: 10 Bit
• Shape: DIP
• Technics: Semiconductor IC
• Analog Input: Current Input/Voltage Input
• Accuracy: 0.1%
• Temperature Drift: ± 50 Ppm/℃ (± 100 Ppm/℃, Maximum)
• Input Resistance: 100 ω (4-20mA/0-20mA/0-10mA Current Input)
• Bandwidth: -3 dB 10 Hz
• Ad Conversion Rate: 10 Sps
• Low Level: Nput<1V
• High Level: Input 4~30V
• Switching Output: Open Collector Output, Voltage 0~30V
• Analog Output: Voltage 0~4.8V, Output Load Greater Than 2K Ohms.
• Transport Package: Wayjunr
• Specification: 120mm x 70mm x 43mm
• Trademark: wayjunr
• Origin: Guangdong, China
• Production Capacity: 9999
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 0.200kg

Product Description

8AI, 4DI, 4DO mixed signal to RS-485/232, MODBUS data acquisition module WJ30

Product features:
Eight 4-20mA input Modbus RTU communication protocol
Four channel switch input, four channel switch output
The precision of the calibration module can be programmed through the RS-485/232 interface
Isolation and voltage resistance between signal input/output 3000VDC
Wide power supply range: 8~32VDC
High reliability, easy programming, and easy application
Standard DIN35 rail installation, convenient for centralized wiring
Users can program module addresses, baud rates, etc
Supports Modbus RTU communication protocol and automatic recognition protocol
Low cost, small volume modular design
Typical applications:
Signal measurement, monitoring, and control
RS-485 remote I/O, data acquisition
Intelligent building control, security engineering and other application systems
RS-232/485 bus industrial automation control system
Industrial site signal isolation and long-distance transmission
Equipment operation monitoring
Measurement diagram of sensor signal
Acquisition and recording of industrial field data
Development of medical and industrial control products
4-20mA or 0-5V signal acquisition

Product selection	WJ30- U(A)
Input voltage or current signa interface U1:0-5V  A1:0-1mA  U2: 0-10V  U4:0-2.5V  U8: User defined  A2: 0-10mA  A3:0-20mA  A4:4-20mA  A8: User defined	value communication 485: Output via RS-485 interface  232: Output via RS-232 interface
Selection Example 1: Model: WJ30-A4-485 indicates eight 4-20mA signal inputs and outputs via RS-485 interface	Selection Example 2: Model: WJ30-U1-232 indicates eight 0-5V signal inputs and outputs via RS-232 interface	Selection example 3: Model: WJ30-U2-485 represents eight channels of 0-10V signal input, and the output is RS-485

Company Profile

Shenzhen Weijunrui Technology Co., Ltd

Since: 2011
Specialty: The company's main products include analog acquisition modules, signal isolators/conversion modules, and signal transmitters
Capacity: Produce 10000 per month
Advanced Features:
Switching to TCP/network/remote IO module, Modbus RTU to TCP, RS232/485 to Ethernet, analog signal (current/voltage/thermistor/frequency/displacement/speed/pulse) isolation transmitter, mV differential signal amplifier, isolation amplifier, micro power DC-DC module power supply, etc

Product Overview:

Function Introduction:

The WJ30 product implements signal acquisition between sensors and hosts for detecting analog signals.
The
WJ30 series products can be applied to industrial automation control systems with RS-232/485 bus, 4-20mA/0-5V signal
measurement, monitoring and control, as well as industrial field signal isolation and long-term transmission, etc.
The product includes power isolation, signal isolation, linearization, A/D conversion, and RS-485 serial
communication.
Each serial port can connect up to 255 WJ30 series modules, and the communication method supports
MODBUS RTU communication protocol. The default address is 01, the baud rate is 9600, and the data format is 10 bits,
1 start bit, 8 data bits, 1 stop bit, and no checksum.
It also supports ASCII communication protocol, and the baud rate
can be set by code. It can be hung on the same RS-485 bus as other manufacturers' control modules, making it easy for
computer programming.The WJ30 series products are intelligent monitoring and control systems based on microcontrollers. All user set
calibration values, addresses, baud rates, data formats, checksum statuses, and other configuration information are stored
in non-volatile memory EEPROM.
The WJ30 series products are designed and manufactured according to industrial standards, with isolation between
signal inputs/outputs. They can withstand an isolation voltage of 3000VDC, have strong anti-interference ability, and
high reliability.
The working temperature range is -45 ℃ to+85 ℃.

The WJ30 remote I/O module can be used to measure eight analog signals, four switch signals, and has four switch
outputs and one 0~4.8V voltage signal output.
1, Analog signal input
16 bit acquisition accuracy, 8 analog signal inputs.
All signal input ranges have been calibrated before the product
leaves the factory.
During use, users can also easily program and calibrate themselves.
Please refer to the
product selection for specific current or voltage input range.
2, Switching signal input and output, one channel of 0~4.8V voltage signal output
4-channel switch signal input, can be connected to dry and wet contacts, please refer to the wiring diagram for
details;
4-channel switch signal output with open collector output.
A 0~4.8V voltage signal output can be used for analog signal control.
3, Communication Protocol
Communication interface: 1 standard RS-485 communication interface or 1 standard RS-232 communication
interface, please specify when ordering and selecting.
Communication Protocol: Supports two protocols, the character protocol defined by the command set and the
MODBUS RTU communication protocol.
The module automatically recognizes communication
protocols and can achieve network communication with various brands of PLCs, RTUs, or computer
monitoring systems.
Data format: 10 digits.
1 start bit, 8 data bits, and 1 stop bit.
The communication address (0-255) and baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be set;
The communication network can reach a maximum distance of 1200 meters and is connected through
twisted pair shielded cables.
High anti-interference design of communication interface, ± 15KV ESD protection, communication response time
less than 100mS.
4, anti-interference
Checksums can be set as needed.
There is a transient suppression diode inside the module, which can effectively
suppress various surge pulses, protect the module, and the internal digital filter can also effectively suppress power
frequency interference from the power grid.

FAQ

Q: How to contact you?
A: Please contact us via email or online customer service