Two PWM duty cycle signals converted to RS485, Modbus RTU module WJ152
Product features:
Measure PWM conversion to standard Modbus RTU protocol
Simultaneously capable of measuring the frequency of PWM
Support measuring the phase difference between two PWM channels
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
Typical applications:
Measurement of motor PWM signal
Measurement of servo PWM signal
PLC signal measurement
Frequency detection of PWM
Intelligent factories and industrial Internet of Things
PWM signal is transmitted remotely to the industrial computer
Product Overview:
The WJ152 product achieves signal acquisition between sensors and the host for measuring PWM signals. The WJ152 series products can be applied to the RS-485 bus
Industrial automation control systems, automated machine tools, industrial robots, three coordinate positioning systems, PWM measurement, servo measurement, and so on.
The product includes signal acquisition, pulse signal capture, signal conversion, and RS-485 serial communication. Each serial port can connect up to 255 WJ152 series modules,
The communication method adopts ASCII code communication protocol or MODBUS RTU communication protocol, and the baud rate can be set by the code, which can be hung with control modules from other manufacturers
On the same RS-485 bus, it is convenient for computer programming.
The WJ152 series products are intelligent monitoring and control systems based on microcontrollers, with all user set addresses, baud rates, data formats, and parity calibration
The configuration information such as verification status is stored in the non-volatile memory EEPROM.
The WJ152 series products are designed and manufactured according to industrial standards, with no isolation between signal inputs/outputs, strong anti-interference ability, and high reliability. Working temperature
Temperature range -45 ℃ to+85 ℃.
Function Introduction:
The WJ152 remote I/O module can be used to measure 2-way PWM signals.
1. Signal input
Two PWM signal inputs can be connected to both dry and wet contacts, and the input type can be set through commands.
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-bit start bit, 8-bit data bit, 1-bit stop bit. No verification.
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
Parity can be set as needed. There are transient suppression diodes inside the module, which can effectively suppress various surge pulses and protect the module
Digital filtering can also effectively suppress power frequency interference from the power grid.
Product selection:
WJ152 - □
communication interface
485: Output to RS-485 interface
Example of selection: Model: WJ152-485 represents an RS-485 interface for output
Product manual：https://www.wayjun.cn/d/
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