Differential encoder pulse counter or speed measurement, Modbus RTU module WJ157
Product features:
Differential encoder converted to standard Modbus RTU protocol
Encoder 5V differential signal directly input
Can be used as a differential encoder counter or speed measurement
Differential 5V signal is directly input, encoder counts, and can recognize forward and reverse directions
It can also be set as a 2-way independent DI high-speed counter
Encoder count value supports automatic power-off saving
The module can output a 5V power supply to power the encoder
Through the RS-485 interface, it is possible to reset and set the count value
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:
Encoder pulse signal measurement
Flow meter pulse counting or flow measurement
Counting of production line products
Count of logistics package quantity
Encoder signals are transmitted remotely to industrial computers
Intelligent factories and industrial Internet of Things
Replace PLC with direct data transmission to the control center
Product Overview:
The WJ157 product realizes signal acquisition between sensors and the host, which is used to decode encoder signals. The WJ157 series products can be applied to the RS-485 total
Line industrial automation control system, automated machine tools, industrial robots, three coordinate positioning system, displacement measurement, stroke measurement, angle measurement, speed measurement
Quantity, flow measurement, product counting, 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 WJ157 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 WJ157 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 WJ157 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 WJ157 remote I/O module can be used to measure 1 differential encoder signal or set as 2 independent differential counters.
1. Signal input
One 5V differential encoder signal input or two independent 5V differential counters.
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 manual：https://www.wayjun.cn/d/
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