DLMS on Python - Error

Linux distro :- Ubuntu 16.04
USB 2 serial port converter :- PL2303.

That would be great!

Thanks for the support.

We are trying to write our own script to also see the response (which should start with a 7E) and will post the results as soon as we have something.

same problem. This is my log.

Authentication: Authentication.NONE
ClientAddress: 0x10
ServerAddress: 0x1
TX: 11:07:15 7E A0 07 03 21 93 0F 01 7E
RX: 11:07:30 81 80 14 05 02 02 00 06 02 02 00 07 04 00 00 00 01 08 04 00 00 00 01 6F EF 7E
DisconnectRequest

I tried in raspberry pi also. It gives me same error.

But when i send this command '7E A0 07 03 21 93 0F 01 7E' using serial tool (H-term) I get response.

7E A0 20 21 03 73 73 98 81 80 14 05 02 02 00 06 02 02 00 07 04 00 00 00 01 08 04 00 00 00 01 6F EF 7E

Sure.

Here is the image of the packet.

This same converter works well when we use an off-the-shelf serial software like hterm. It also works fine when we send the hex data from our own python code.

Hello,

Where are we going wrong?

We are sending the commands like this:

neel@neel-HP-Notebook:~/Documents/git-repo/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python$ python3 main.py
GuruxDlmsSample reads data from the DLMS/COSEM device.
GuruxDlmsSample -h [Meter IP Address] -p [Meter Port No] -c 16 -s 1 -r SN
-h host name or IP address.
-p port number or name (Example: 1000).
-S serial port.
-i IEC is a start protocol.
-a Authentication (None, Low, High).
-P Password for authentication.
-c Client address. (Default: 16)
-s Server address. (Default: 1)
-n Server address as serial number.
-r [sn, sn] Short name or Logican Name (default) referencing is used.
-w WRAPPER profile is used. HDLC is default.
-t [Error, Warning, Info, Verbose] Trace messages.
-g "0.0.1.0.0.255:1; 0.0.1.0.0.255:2" Get selected object(s) with given attribute index.
Example:
Read LG device using TCP/IP connection.
GuruxDlmsSample -r SN -c 16 -s 1 -h [Meter IP Address] -p [Meter Port No]
Read LG device using serial port connection.
GuruxDlmsSample -r SN -c 16 -s 1 -sp COM1 -i
Read Indian device using serial port connection.
GuruxDlmsSample -S COM1 -c 16 -s 1 -a Low -P [password]
------------------------------------------------------
Available serial ports:
['/dev/ttyS31', '/dev/ttyS30', '/dev/ttyS29', '/dev/ttyS28', '/dev/ttyS27', '/dev/ttyS26', '/dev/ttyS25', '/dev/ttyS24', '/dev/ttyS23', '/dev/ttyS22', '/dev/ttyS21', '/dev/ttyS20', '/dev/ttyS19', '/dev/ttyS18', '/dev/ttyS17', '/dev/ttyS16', '/dev/ttyS15', '/dev/ttyS14', '/dev/ttyS13', '/dev/ttyS12', '/dev/ttyS11', '/dev/ttyS10', '/dev/ttyS9', '/dev/ttyS8', '/dev/ttyS7', '/dev/ttyS6', '/dev/ttyS5', '/dev/ttyS4', '/dev/ttyS3', '/dev/ttyS2', '/dev/ttyS1', '/dev/ttyS0', '/dev/ttyUSB0']
neel@neel-HP-Notebook:~/Documents/git-repo/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python$ python3 main.py -S /dev/ttyUSB0
Authentication: Authentication.NONE
ClientAddress: 0x10
ServerAddress: 0x1
RX: 14:32:06 87 5E 80 14 05 02 02 00 06 02 02 00 07 04 00 00 00 01 08 04 00 00 00 01 6F EF 7E
DisconnectRequest
^Z
[1]+ Stopped python3 main.py -S /dev/ttyUSB0
neel@neel-HP-Notebook:~/Documents/git-repo/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python$ python3 main.py -S /dev/ttyUSB0 -t Verbose
Authentication: Authentication.NONE
ClientAddress: 0x10
ServerAddress: 0x1
TX: 14:32:36 7E A0 07 03 21 93 0F 01 7E
RX: 14:32:51 2E 80 14 05 02 02 00 06 02 02 00 07 04 00 00 00 01 08 04 00 00 00 01 6F EF 7E
DisconnectRequest

Hi Kurumi,

Yes, we are able to communicate with the meter using the DLMS Director.

Can you suggest what we are missing in the Python Script though?

We are looking at reading close to a 100 different values from the meters but the DLMSDirector only provides 15-20 parameters. We want to understand how to receive the remaining ones and what to do to receive them.

Ambimat.