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Software Test

SSCOM Serial Debug Assistant​

Basic Query Commands​

  • Download the SSCOM Serial Debug Assistant and open it on your computer. Open the corresponding port number, set the baud rate to 9600, select SendHex and Receive, and choose ModbusCRC16 check for the checksum.

    Send the following command; under normal conditions, it will return the 8-channel pulse input data.

    01 04 00 00 00 0C F0 0F
    Modbus RTU PWM Output 4CH SSCOM Serial Debugging Assistant - Querying all 4-channel data

Other Commands​

  • If you need to send other commands, select SendHEX, choose ModbusCRC16 check for the checksum, enter the first six bytes of the command, and click SEND, it will automatically add the CRC check code. For example, send the following command to read Channel 2 voltage: 
    01 04 00 03 00 01 C1 CA
    Modbus RTU PWM Output 4CH SSCOM Serial Debugging Assistant - Auto-complete CRC

For more detailed control commands, please refer to the Development Protocol.

Modbus Poll Software​

  • The serial software is not convenient for data observation. You can use the Modbus Poll Software to read data. Download and install the Modbus Poll software.

  • Open the software, select Setup -> Read/Write Definition. Set Slave ID to the actual device address, select Function 04, change Quantity to 12 channels. Click OK to confirm.

    Modbus RTU PWM Output 4CH SSCOM - Modbus Poll read configuration

  • Select Connection -> Connect..., choose the corresponding serial port, set baud rate to 9600, 8 data bits, no parity, 1 stop bit. Click OK to connect.

    Modbus RTU PWM Output 4CH SSCOM - Modbus Poll connection settings

  • Once connected successfully, the 4-channel monitoring data will be displayed.

    Modbus RTU PWM Output 4CH SSCOM Modbus Poll read results