Reading meters using Dynamic IP addresses in GPRS connection

Hi Mikko,

can I still use GXDLMSSecureClient for the public client?

I am getting: Invalid Command

Thanks

Hi,

I downloaded the latest

Send SNRM request.7E A0 07 03 21 93 0F 01 7E

the program got stuck on Media.Receive(p)

Do you know why? Do I need to change any setttings on the json file

Thanks

I downloaded the latest Gurux.DLMS.AMI

Interface is WRAPPED (1), the connection is NB-IoT... does it make any difference? It doesn't even retry

Hi,

appsettings.json
appsettings.Development.json

I think something not working as expected?

I am only changing appsettings.Development.json (Interface 1) but the (InterfaceType)listener.Interface is 0 when calling GXDLMSSecureClient(listener.UseLogicalNameReferencing, listener.ClientAddress, listener.ServerAddress, (Authentication)listener.Authentication, listener.Password, (InterfaceType)listener.Interface);

it looks like it is only looking at appsettings.json for Interface

so it now seems to receive data from the meter but still: Invalid Command after sending AARQ:

Client 95.129.20.27:13398 is connected.
Send AARQ request
TX: 03:29:02 00 01 00 10 00 01 00 1F 60 1D A1 09 06 07 60 85 74 05 08 01 01 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 00 1E 5D FF FF
info: Gurux.DLMS.AMI.Notify.GXListenerService[0]
TX: 03:29:02 00 01 00 10 00 01 00 1F 60 1D A1 09 06 07 60 85 74 05 08 01 01 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 00 1E 5D FF FF
RX: 03:29:03 00 01 00 01 00 01 00 24 DB 08 93 15 03 00 03 00 25 03 19 30 00 00 00 00 14 44 D5 58 3B 7A 94 0C EF 3A 5F 0A 3E 81 41 4E F0 CF 6D B7
info: Gurux.DLMS.AMI.Notify.GXListenerService[0]
RX: 03:29:03 00 01 00 01 00 01 00 24 DB 08 93 15 03 00 03 00 25 03 19 30 00 00 00 00 14 44 D5 58 3B 7A 94 0C EF 3A 5F 0A 3E 81 41 4E F0 CF 6D B7
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
Request starting HTTP/1.1 POST http://localhost:64881/api/SystemError/AddSystemError application/json 90
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
Executing endpoint 'DBService.Controllers.SystemErrorController.Post (Gurux.DLMS.AMI)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[3]
Route matched with {action = "Post", controller = "SystemError"}. Executing controller action with signature Microsoft.AspNetCore.Mvc.ActionResult`1[Gurux.DLMS.AMI.Messages.Rest.AddSystemErrorResponse] Post(Gurux.DLMS.AMI.Messages.Rest.AddSystemError) on controller DBService.Controllers.SystemErrorController (Gurux.DLMS.AMI).
info: Gurux.DLMS.AMI.Startup[0]
GXSQL: INSERT INTO GXSystemError ("Generation", "Error", "Level") VALUES('2021-09-28 15:29:03', 'Invalid Command.', 0)
info: Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor[1]
Executing ObjectResult, writing value of type 'Gurux.DLMS.AMI.Messages.Rest.AddSystemErrorResponse'.
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[2]
Executed action DBService.Controllers.SystemErrorController.Post (Gurux.DLMS.AMI) in 6.844ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
Executed endpoint 'DBService.Controllers.SystemErrorController.Post (Gurux.DLMS.AMI)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
Request finished in 15.974ms 200 application/json; charset=utf-8
Disconnecting from the meter.

Thanks

update...if I add a few delays it works, at least I can get the LDN

GXDLMSObjectCollection objects = new GXDLMSObjectCollection();

Thread.Sleep(2000);

GXDLMSSecureClient client = new GXDLMSSecureClient(listener.UseLogicalNameReferencing, listener.ClientAddress, listener.ServerAddress, (Authentication)listener.Authentication, listener.Password, (InterfaceType)listener.Interface);
client.Ciphering.Security = Security.None;

Thread.Sleep(2000);

reader = new GXDLMSReader(client, media, _logger, listener.TraceLevel, 60000, 3, 0);
GXDLMSData ldn = new GXDLMSData("0.0.42.0.0.255");
ldn.SetUIDataType(2, DataType.String);

Thread.Sleep(2000);

reader.InitializeConnection();
reader.Read(ldn, 2);
Console.WriteLine("Meter connected: " + ldn.Value);

I don't understand why, maybe some timeout issues?

Thanks

Hi Mikko,

I have been told from the manufactured (Elster/Honeywell EI7) to wait for a "Compact Frame":

When are you sending AARQ request? Typically meter sends a Compact Frame (a notification packet) once connection is established with network and socket connection is successful. The server seeing the socket connection, must first receive the packet, process it and then send a downlink packet. Is it possible that you are sending a AARQ request immediately after socket connect and then processing the receiving notification packet after few milliseconds. You must first receive the packet, flush the packet and then send the AARQ.

Is there a way to do it using Gurux library?

I think this is what is happening: I am sending a AARQ request immediately after socket connect...

Many Thanks

Hi Mikko,

adding a delay after the socket connection seem to work even do is not nice.

What do I need to do on the AMI database to be able to read Half Hourly Data from the meter? I have populated a few table: Task, Object, Device, DefualtTemplate, ecc.. to be able to reach the Read method.
What do I need to have on Attribute table?

For the "compact frame" issue I am thinking if you could help us (just so the Hire US advert). What do we need to do to hire you for some help?

Thanks