How to interface the meter(client) and server(script) using TCP ?

By ERAIYARUL K , 16 February, 2024
Forums
Gurux.Net

Hi All,
Now the meter act as client . I need to host server and communicate with meter , when the meter is connected. How to handshake,read and write with device?.Can u help me?

ERAIYARUL K

2 years 7 months ago

Hi
Thanks for reply
I complete the below process to connect with client meter and server
1)create the server:
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as server_socket:
server_socket.bind((HOST, PORT))
2)listen the meter(client)
conn, addr = server_socket.accept()
executor.submit(handle_connection, conn, addr)
3)calling the function and create a client object ,trace and invocationCounter
client = GXDLMSSecureClient(True)
media = conn
reader = GXDLMSReader(client,media,trace,invocationcounter)
reader.initializeConnection()
here i got issue to handshake,read and write with client meter .Media object is issue for me and i can't able to send and receive the data from media object. Can u help me with sample code in python ?

Kurumi

2 years 7 months ago

Hi,

At first, you need to check that your meter uses auto-connect as I described earlier.
You need to create GXNet media component and use it like this:

media = GXNet(NetworkType.TCP, None, 4000)
media.server = True
client = GXDLMSSecureClient(True)
reader = GXDLMSReader(client,media,trace,invocationcounter)

BR,
Mikko