I want to interface EVM430F6779 electric meter to serial terminal.
I have already interfaced with the GUI using rs232 to my computer and i am getting the desired results
I then did some research on DL/T645 and i am able to communicate with meter for getting phase1, phase2 and phase3 readings through serial terminal.
STEP1: I open GUI and wait for the signal to turn green
STEP2: I colse GUI and open serial terminal, configure COM and baudrate and then i send the code for phase1,phase2 and phase3 readings
The problem i am facing is i am not able to communicate directly by opening the serial terminal. First i have to open GUI and once the signal is green i close GUI, open serial terminal and then communicate for meter readings.
If i bypass STEP1 and directly go to STEP2 i dont get any response from the meter. I guess there is some password set in the meter for enabling the communication and when i open GUI the password is sent by GUI and communication is triggered.
Do we really have any password? if yes please let me know the initial command that should be given to trigger communication.
If there is no password then how should i bypass step1?
My goal is to open serial terminal and start communication with the meter without any dependency of GUI.
Please solve my above problems. Thanks in advance.