Resistance potentiometer electronic ruler to RS-485, displacement angle to Modbus module WJ123
Product features:
The electronic ruler signal of the resistance potentiometer is collected and converted into RS-485 output
Using a 12 bit AD converter, the measurement accuracy is better than 0.1%
The precision of the calibration module can be programmed through the RS-485 interface
Isolation and withstand voltage 1000VDC between signal inputs/outputs
Wide power supply range: 8~32VDC
High reliability, convenient programming, and easy application
Standard DIN35 rail installation for convenient centralized wiring
User programmable module address, baud rate, etc
Supports Modbus RTU communication protocol and automatic recognition protocol
Industrial flame-retardant housing, RS485 port surge protection
The AD conversion rate can be programmed
Typical applications:
Potentiometer, displacement signal measurement
RS-485 remote I/O, data collection
Electronic ruler, angle measurement, etc
RS-485 bus industrial automation control system
Industrial site signal isolation and long-distance transmission
Equipment operation monitoring
Measurement of sensor signals
Acquisition and recording of industrial site data
Development of medical and industrial control products
Product Overview:
The WJ123 product realizes signal acquisition between sensors and the host to detect analog signals. The WJ123 series products can be applied to the RS-485 bus
Industrial automation control systems, various potentiometer resistance signal measurement and monitoring, as well as industrial site signal isolation and long-distance transmission, etc.
The products include power isolation, signal isolation, linearization, A/D conversion, and RS-485 serial communication. Each serial port can connect up to 255 WJ123 series
The module adopts ASCII code communication protocol or MODBUS RTU communication protocol for communication, and the baud rate can be set by the code, which can communicate with control modules from other manufacturers
The blocks are hung on the same RS-485 bus for easy computer programming.
The WJ123 series products are intelligent monitoring and control systems based on microcontrollers, with all user set calibration values, addresses, baud rates, and data formats,
The configuration information such as checksum status is stored in the non-volatile memory EEPROM.
The WJ123 series products are designed and manufactured according to industrial standards, with isolation between signal inputs/outputs, capable of withstanding 1000VDC isolation voltage, and anti-interference ability
Strong strength and high reliability. Working temperature range -40 ℃ to+85 ℃.
Function Introduction:
The WJ123 signal isolation acquisition module can be used to measure the resistance signal of a three wire potentiometer.
1. Potentiometer signal input
12 bit acquisition accuracy, potentiometer resistance signal input. All products have been calibrated before leaving the factory. Users do not need to calibrate.
2. Communication protocol
Communication interface: 1 standard RS-485 communication interface.
Communication protocol: Supports two protocols, the character protocol defined by the command set and the MODBUS RTU communication protocol. The module automatically recognizes the communication protocol,
Can achieve network communication with multiple brands of PLC, RTU or computer monitoring systems.
Data format: 10 digits. 1 start bit, 8 data bits, 1 stop bit, no checksum.
The communication address (0-255) and baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be set; communication
The longest distance of the network can reach 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.
3. Anti-interference
Checksum can be set as needed. There are transient suppression diodes inside the module, which can effectively suppress various surge pulses and protect the module
Word filtering can also effectively suppress power frequency interference from the power grid.
Product manual：https://www.wayjun.cn/d/
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