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Hi all, I am currently facing some problems in sending command to another machine using serial with the module QJ71C24N-R2 First of all, I had tried to send the command from my PC to the machine using Hercules software and I am able to send the command and receive reply from the machine. Refer to the link for image:https://drive.google.com/file/d/1lQOxIuBVzx4Gk0NBGBP_YZoTzV5vSOnN/view?usp=sharing Now, I tried to use the predefined protocol function to send the command to the machine and there is no result. Refer to the link for image: https://drive.google.com/file/d/1DTsDNEZmPKhIsfTptObnERh5ixOSSSuU/view?usp=sharing (Send Packet) https://drive.google.com/file/d/1DTsDNEZmPKhIsfTptObnERh5ixOSSSuU/view?usp=sharing (Received Packet 1) https://drive.google.com/file/d/1b-J_pjocS_szwrmOyJIv8jKRpwMFyiA6/view?usp=sharing (Received Packet 2) This is the wiring connection. On the left is the pin connection for PLC and on the right is the pin connection for the machine. Refer to the link for image: https://drive.google.com/file/d/1F-bYL3U6Dn6FjIz66dZHRoA6CRKANw_x/view?usp=sharing I had also tried to troubleshoot using the state monitor and circuit trace. In the circuit trace, there is no packet send to the machine even i had written the program to execute the function. In state monitor, here is the signal from the module: Refer to the link for image: https://drive.google.com/file/d/1KcmlEw3isEKzcjQjpFOJDfOQGRVCJ6sZ/view?usp=sharing in the error information tab, I saw that the SD Wait SIGNAL is turn on. Refer to the link for image: https://drive.google.com/file/d/1V2uC3LbQtrgD_7Jb4yy_xofQX_cbj9Eq/view?usp=sharing In the Predefined Protocol Function tab, I found that the execution status is "Sending" but its actually not sending. Refer to the link for image: https://drive.google.com/file/d/1dtnq6w-IjvxWruk-i2JnLxQ4rCtRIk8D/view?usp=sharing For the programming, refer to the link for image: https://drive.google.com/file/d/1D1CZdRrrngmCPBMQfYYHIUT3q8jsNiu2/view?usp=sharing Can anyone give me some idea on where thing goes wrong? Thank you.

Hi all, Recently I am having a project using the QJ71C24N-R2 serial communication module to communicate with another machine using RS-232. In this project, I will need to send command to the machine and receive data from the machine. I had come across the predefined protocol support function in GX-Works2. Just want to know if I had configure the protocol inside the predefined protocol support function, does this means that the module will keep send the command that I had configured without the need of writing ladder program?    

Do you know what is the difference between non-procedural protocol and pre-defined protocol?

Do you have any example or reference I can have a look?