WAYJUN New product: 8 road 4-20mA turn RS-485/232, data acquisition module


● Eight road analog signal acquisition, isolation conversion RS-485/232 output

● 12-bit AD converter, measurement accuracy is better than 0.1%

● Proficiency of calibration module can be accessed through the RS-485/232 interface

● Signal input / output isolation withstand voltage 1000VDC

● Wide power supply range: 8 ~ 32VDC

● High reliability, convenient programming, easy to apply

● Standard DIN35 rail installation, convenient centralized wiring

● User programmable setting module address, baud rate, etc.

● Support MODBUS RTU communication protocol, automatic identification protocol

● Industrial flame retardant housing, RS485 port surge protection

● AD conversion rate can be programmed

typical application:

● Signal measurement, monitoring and control

● RS-485 remote I / O, data collection

● Intelligent building control, security engineering and other application systems

● RS-232/485 bus industrial automation control system

● Industrial field signal isolation and long-term transmission

● Equipment operation monitoring

● Measurement of sensor signals

● Acquisition and record of industrial field data

● Medical, industrial control product development

● 4-20mA or 0-5V signal acquisition

product description:

WJ128 product implements signal acquisition between sensors and hosts to detect analog signals. WJ128 series products can be applied to the RS-232/485 bus industrial automation control system, 4-20mA / 0-5V signal measurement, monitoring, and industrial field signal isolation and long-term transmission, etc.

Products include power isolation, signal isolation, linearization, A / D conversion, and RS-485 serial communication. Each serial port can be connected up to 255 WJ128 series modules. The communication mode uses the ASCII code communication protocol or the Modbus RTU communication protocol. The baud rate can be set by the code, which can be hung on the same RS-485 bus with the control module of other manufacturers, which is convenient for computers. Program.

WJ128 series products are based on a single-chip intelligent monitoring and control system, all user setting calibration values, information, baud rates, data formats, checksum, and other configuration information stored in non-volatile memory EEPROM.

WJ128 series products are isolated between industrial standards, manufacturing, signal input / output, can withstand 1000VDC isolation voltage, strong anti-interference ability, high reliability. Working temperature range - 45 ° C ~ + 85 ° C.

Function introduction:

The WJ128 signal isolation acquisition module can be used to measure the eight-way voltage or current signal.

1, analog signal input

12-bit acquisition accuracy, 8 analog signal input. All signal input ranges are all calibrated in front of the factory factory. In use, the user can easily program calibration. Please read the product selection for specific current or voltage input.

2, communication protocol

Communication interface: 1 standard RS-485 communication interface or 1 standard RS-232 communication interface, the order selection is indicated.

Communication Agreement: Supports two protocols, command set defined character protocols and Modbus RTU communication protocols. The module automatically identifies the communication protocol, which enables network communication with a variety of powers of PLC, RTU, or computer monitoring system.

Data format: 10 digits. 1 start position, 8-bit data bit, 1 stop bit.

The communication address (0 ~ 255) and baud rate (2400, 4800, 9600, 115200 bps) can be set; the longest distance of the communication network can be 1200 meters and is connected by a twisted cable.

Communication interface high anti-interference design, ± 15kV ESD protection, communication response time is less than 100 ms.

3, anti-interference

You can set the checksum as needed. There is a transient suppression diode inside the module, which can effectively suppress various inmuri pulses, protective modules, and digital filtering inside, or well inhibiting power frequency interference from the grid.

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8 road 4-20mA turn RS-485/232, data acquisition module WJ128

  • Product Code: WJ128
  • Availability: In Stock
  • $27.99

  • Ex Tax: $27.99