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Unknown Baudrate

By Nintenzo , 19 August, 2026
Forums
Gurux.DLMS

Hello, I'm trying to connect to a meter I tried using GXDLMSDirector and it's connecting
but when I use the gurux library for C# and I connected using the same parameters I get this error
Opening serial port...
Port opened: COM7
Connecting to meter...
Standard: DLMS
IEC Sending:/?!

IEC received: /ISk8\2MIE5E-300

Connection failed:
System.Exception: Unknown baud rate.
at Gurux.DLMS.Reader.GXDLMSReader.InitializeOpticalHead() in C:\Users\user\source\repos\Meter\Meter\GXDLMSReader.cs:line 775
at Gurux.DLMS.Reader.GXDLMSReader.InitializeConnection() in C:\Users\user\source\repos\Meter\Meter\GXDLMSReader.cs:line 856
at Program.Main() in C:\Users\user\source\repos\Meter\Testing\Test5.cs:line 55

Disconnecting from the meter.
Release from the meter.
Connection closed.

I tried connecting a different meter using my C# code and it's connecting no problem
parameters used in both

BaudRate 300
Client address 1
Physical address 17
Logical address 1
InterfaceType HDLCWithModeE
Authentication Low
Timeout 5000
same password

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