1 channel encoder speed measurement or 2 DI frequency measurement, 1 channel DO speed alarm output

product description:

WJ151 product implements signal acquisition between sensors and hosts to decode encoder signals. WJ151 series products can be applied to RS-485 bus industrial automation control systems, automated machine tools, industrial robots, three-situ positioning systems, displacement measurements, stroke measurements, angular measurements, speed measurements, flow measurement, product counting, etc.

Products include signal acquisition, pulse signal capture, signal conversion, and RS-485 serial communication. Each serial port can be connected up to 255 WJ151 series modules, the communication mode uses the ASCII code communication protocol or the Modbus RTU communication protocol, the baud rate can be set up by the code, can be hung on the same RS-485 bus with other manufacturers' control modules, easy to computers Program.

The WJ151 series is based on the intelligent monitoring and control system of single chip microcomputer. All user-set addresses, baud rates, data formats, checksum and other configuration information stored in non-volatile memory EEPROM.

WJ151 series products are designed, manufactured, and signal input / output is not isolated from industrial standards, strong anti-interference ability and high reliability. Working temperature range - 45 ° C ~ + 85 ° C.

Features:

● Encoder count Conversion to standard Modbus RTU protocol

● Coding speed measurement, can identify positive reversal, can alarm output

● You can also set as a 2nd independent DI high speed counter

● All the way the DO output can be set to count or frequency alarm signals

● Count value supports power-on automatic save

● DI input supports PNP and NPN input

● Filter time can be set when the relay and mechanical switch input

● Clear and set the count value via the RS-485 interface.

● 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.

typical application:

● Encoder pulse signal measurement and alarm

● Flowmeter pulse count or flow measurement

● Production line product count

● Quantity count of logistics package

● Close to switch pulse signal measurement

● Encoder signal is remote to the industrial computer

● Water meter or electric meter pulse count

● Intelligent factory and industrial network

Function Introduction:

The WJ151 remote I/O module can be used to measure 1 encoder signal, or set as 2 independent counters or DI statusmeasurement. 1、 Signal input 1 encoder signal input or 2 independent counters, can be connected to dry and wet contacts, and the input typecanbe set through commands. 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:

WJ151 - □ Communication interface 485: Output as RS-485 interface Selection example: Model: WJ151-485 indicates an RS-485 interface for output

WJ151 General Parameters:

(Typical @+25 ℃, Vs is 24VDC) Input type: Encoder AB signal input, 1 channel (A0/B0). Low level: Input<1V High level: Input 3.5~30V The frequency range is 0-50KHz

Encoder counting 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 24mm