8DI counter to PWM encoder pulse counter angle speed is measured

Original title: 8DI counter to PWM encoder pulse counter angle speed is measured

product description:

WJ66 product realizes the signal acquisition between the sensor and the host, which is used to decode the encoder signal and equipment control. WJ66 series products can be used in RS-232/485 bus industrial automation control systems, automated machine tools, industrial robots, three-coordinate positioning systems, displacement measurement, stroke measurement, angle measurement, speed measurement and so on.

Products include signal isolation, pulse signal capture, signal conversion and RS-485 serial communication. Each serial port can connect up to 255 WJ66 series modules. The communication method adopts ASCII code communication protocol or MODBUS RTU communication protocol. The baud rate can be set by code. It can be hung on the same RS-485 bus with other manufacturers' control modules, which is convenient for computers. Programming.

WJ66 series products are intelligent monitoring and control systems based on single-chip microcomputers. All user-set address, baud rate, data format, checksum status and other configuration information are stored in non-volatile memory EEPROM.

WJ66 series products are designed and manufactured in accordance with industrial standards. There is no isolation between signal input and output, with strong anti-interference ability and high reliability. Operating temperature range-45℃～+85℃.

Function introduction:

The WJ66 remote I/O module can be used to measure four-channel encoder signals and has eight-channel switch output. It can be used as a 4-way encoder counter or 4-way speed measurement, and it can also output 8-way PWM signals.

1. Signal input and output

4-channel encoder signal input, which can be connected to dry contact and wet contact, please refer to the wiring diagram for details; 8-channel switch signal output open collector output.

2. Communication protocol

Communication interface: 1 standard RS-485 communication interface or 1 standard RS-232 communication interface, please specify when ordering and selecting.

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 and can realize network communication with various brands of PLC, RTU or computer monitoring systems.

Data format: 10 bits. 1 start bit, 8 data bits, 1 stop bit.

The communication address (0～255) and baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be set; the longest distance of the communication network can reach 1200 meters, and it is connected through a twisted pair shielded cable.

The communication interface is designed with high anti-interference, ±15KV ESD protection, and the communication response time is less than 100mS.

3. Anti-interference

The checksum can be set as required. There are transient suppression diodes inside the module, which can effectively suppress various surge pulses, protect the module, and the internal digital filter can also suppress the power frequency interference from the power grid.