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

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

WJ30 General Parameters:
 (Typical @+25 ℃, Vs is 24VDC)
 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)
 2KΩ(0-1mA current input)
 Greater than 200K (5V/10V voltage input)
 Bandwidth:-3 dB 10 Hz
 ADconversion rate: 10 SPS (factory default value, users can modify the conversion rate by issuing
 commands.)
 The ADconversion rates of 2.5 SPS, 5 SPS, 10 SPS, 20 SPS, 40 SPS, 80 SPS, 160 SPS, 320 SPS, 500 SPS, and 1000
 SPS can be set through the 40204 register. (Channel conversion rate=AD conversion rate/number of
 open channels)
 Note: Please recalibrate the module after modifying the conversion rate, otherwise the measured data may have
 deviations. You can also specify the conversion rate when placing an order, and we will
 recalibrate the product according to the conversion rate you require when it leaves the factory.
 Common moderejection (CMR): 120 dB (1k Ω Source Imbalance @ 50/60 Hz)
 Normal mode suppression (NMR): 60 dB (1k Ω Source Imbalance @ 50/60 Hz)
 Input protection: overvoltage protection, overcurrent protection
 Switch input: 4-channel (DI0~DI3).
 Low level: Input<1V
 High level: Input 4~30V
 Input resistance: 3K Ω
 Switching output: open collector output, voltage 0~30V, maximum load current 30mA, 4-channel (DO0~DO3).
 Analog output: voltage 0~4.8V, output load greater than 2K ohms.
 Communication: RS-485 or RS-232 standard character protocol and MODBUS RTU communication protocol
 Baud rates (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be selected by software
 The address (0-255) can be selected by software
 Communication response time: 100 ms maximum
 Working power supply:+8~32VDC wide power supply range, with internal anti reverse and overvoltage protection
 circuits
 Power consumption: less than 2W
 Working temperature:-45~+80 ℃
 Working humidity: 10~90% (no condensation)
 Storage temperature:-45~+80 ℃
 Storage humidity: 10~95% (no condensation)
 Isolation and voltage resistance: The analog signal and switch signal are isolated at 3000V, and the switch signal and
 power supply are grounded together.
 Dimensions: 120mm x 70mm x 43mm

Product manual：https://www.wayjun.cn/d/