8-channel 4-20mA or 0-10V to network Modbus TCP and MQTT data acquisition module WJ188

Product features:

●Convert 8 analog signals into standard Modbus TCP protocol

●Using a 12 bit AD converter, the measurement accuracy is better than 0.1%

●The accuracy of the calibration module can be programmed through the network

● Supports communication protocols such as TCPServer, UDP, MQTT, etc

● Built in web page function, data can be queried through web pages

●Users can set module IP addresses and other parameters on the webpage

●Wide power supply range: 8~32VDC

●High reliability, easy programming, and easy application

●Standard DIN35 rail installation, convenient for centralized wiring

●Low cost, small size, modular design

● Dimensions: 106mmx59mmx37mm

Typical applications:

● Signal measurement, monitoring, and MQTT reporting

●Modbus TCP network, data collection

●Intelligent building control, security engineering and other application systems

●Industrial automation control system based on TCP network

●Equipment operation monitoring, MES system

●Measurement of sensor signals

● Acquisition and recording of industrial field data

●Development of medical and industrial control products

● 4-20mA or 0-5V signal acquisition

WJ188 General Parameters:

(Typical @+25 ℃, Vs is 24VDC)

Input type: current input/voltage input

Accuracy: 0.1%

Temperature drift: ± 50ppm/℃ (± 100ppm/℃, maximum)

Input resistance: 150 Ω (4-20mA/0-20mA/0- ± 20mA current input)

300 Ω (0-10mA/0- ± 10mA current input)

1.5K Ω (0-1mA/0- ± 1mA current input)

Greater than 200K (5V/10V voltage input)

Greater than 1M Ω (input voltage below 2.5V)

Bandwidth: -3dB 10Hz

Conversion rate: 16FPS (factory default value, users can modify the conversion rate on the webpage). ）

You can set the AD conversion rate to 2SPS, 4SPS, 8SPS, 16SPS, 32SPS, 50SPS, 80SPS, 100SPS by sending commands

Common mode rejection (CMR): 120dB (1k Ω) SourceImbalance@50 /60Hz）

Norm suppression (NMR): 60dB (1k Ω) SourceImbalance@50 /60Hz）

Input protection: overvoltage protection, overcurrent protection

Communication: MODBUS TCP communication protocol or TCP socket character protocol or MQTT protocol

Web page: Supports web access module and web page setting module parameters.

Interface: RJ-45 network interface.

Communication response time: 10ms maximum

Working power supply:+8~32VDC wide power supply range, with internal anti reverse and overvoltage protection circuits

Power consumption: less than 3W

Working temperature: -45~+80 ℃

Working humidity: 10~90% (no condensation)

Storage temperature: -45~+80 ℃

Storage humidity: 10~95% (no condensation)

Dimensions: 106mmx59mmx37mm