1 encoder meter or speed measurement, 1 DO upper limit alarm output WJ158

Product features:

Differential encoder converted to standard Modbus RTU protocol

Encoder 5V differential signal direct input

 It can be used as differential encoder counter or speed measurement

Differential 5V signal is directly input, encoder counts, and can recognize forward and reverse directions

One DO output can be set as a counting or frequency alarm signal

It can also be set as a 2-way independent DI high-speed counter

Encoder count value supports automatic saving after power outage

The module can output 5V power to power the encoder

Zeroing and setting count values can be achieved through the RS-485 interface

Wide power supply range: 8~32VDC

High reliability, easy programming, and easy application

Standard DIN35 rail installation for convenient centralized wiring

User can programmatically set module address, Baud, etc

Product Overview:

The WJ158 product achieves signal acquisition between sensors and the host, used to decode encoder signals. The WJ158 series products can be applied in RS-485 bus industrial automation control systems, automated machine tools, industrial robots, three coordinate positioning systems, displacement measurement, stroke measurement, angle measurement, speed measurement, flow measurement, product counting, and so on.

The products include signal acquisition, pulse signal capture, signal conversion, and RS-485 serial communication. Each serial port can connect 255 WJ158 series modules at most. The communication mode adopts ASCII code communication protocol or MODBUS RTU communication protocol. The Baud can be set by code and can be hung on the same RS-485 bus with the control modules of other manufacturers, which is convenient for computer programming.

WJ158 series products are intelligent monitoring and control systems based on single chip microcomputer. All user set configuration information such as address, Baud, data format, parity check status, etc. are stored in non-volatile memory EEPROM.

The WJ158 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 range -45 ℃~+85 ℃.

Function Introduction:

The WJ158 remote I/O module can be used to measure 1 differential encoder signal or set as 2 independent differentialcounters. 1、 Signal input One 5V differential encoder signal input or two independent 5V differential counters. 2、 signal output One DO signal output, with a high level approximately equal to the power supply voltage and a lowlevel of 0V, candirectly drive the intermediate relay and set the output mode through commands. 3、 Communication Protocol Communication interface: 1 standard RS-485 communication interface. Communication Protocol: Supports two protocols, the character protocol defined by the command set andtheMODBUS RTU communication protocol. The module automatically recognizes communicationprotocols and can achieve network communication with various brands of PLCs, RTUs, or computermonitoring systems. Data format: 10 digits. 1 start bit, 8 data bits, and 1 stop bit. No verification. The communication address (0-255) and baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) canbeset;The communication network can reach a maximum distance of 1200 meters and is connectedthroughtwisted pair shielded cables. High anti-interference design of communication interface, ± 15KV ESD protection, communication responsetimeless than 100mS. 4、 anti-interference Parity check can be set as needed. There is a transient suppression diode inside the module, which caneffectivelysuppress various surge pulses, protect the module, and the internal digital filter can also effectively suppresspowerfrequency interference from the power grid

Product selection: WJ158 - □ Communication interface 485: Output as RS-485 interface Selection example: Model: WJ158-485 indicates an RS-485 interface for output

WJ158 General Parameters:

(Typical @+25 ℃, Vs is 24VDC) Input type: 5V differential signal input. Differential signal range ± 200mV~± 7V. The frequency range is 0-50KHz. Encoder count range -2147483647 ~+2147483647 DI counter range 0~4294967295 Input resistance: 30K Ω Output type: DO output voltage signal, PNP output, can directly drive intermediate relays. Low level (0): 0V High level (1): power supply voltage -1V; The maximum current is 500mA (without current limitation, pleasedonotshort circuit to GND). Communication: RS-485 standard character protocol and MODBUS RTU communication protocol Baud rates (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be selected by software The address (0-255) can be selected by software Communication response time: 100 ms maximum Working power supply:+8~32VDC wide power supply range, with internal anti reverse and overvoltage protectioncircuits Power consumption: less than 1W Working temperature: -45~+80 ℃ Working humidity: 10~90% (no condensation) Storage temperature: -45~+80 ℃ Storage humidity: 10~95% (no condensation) Dimensions: 106 mm x 59mm x 37mm