DLMS client integration with Landis & Gyr E650

NETWORKING SOLUTIONS
1

Good Day,

I’m having trouble retrieving valid data from the meter via DLMS. I have successfully been able to communicate and extract DLMS data via MAP 110 on TCP/IP.

But when I try to retrieve it via the Teltonika Router DLMS Client, it gives me empty values and incorrect Date and time.

{
“error”: 0,
“result”: {
“Clock”: {
“LGZ58652375”: {
“2”: “01/00/1900 00:00:00 UTC+00:00”
}
},
“Identification number 1.1”: {
“LGZ58652375”: {
“2”: “”
}
}
}
}

Any advice on what the problem might be?

3

Hi there,

Thanks for reaching out! Could you please tell me what kind of connection there is between the Teltonika device and the DLMS meters? Are you using RS232, RS232 USB, RS485? What kind of Teltonika device do you have? (What’s the model of it?)

Could you also double-check the following Wiki page to ensure that you haven’t missed any crucial steps when configuring DLMS? Here’s the link: DLMS client configuration example - Teltonika Networks Wiki

Kind regards,
M.

4

Connection flow:
Landis&Gyr Meter (E650) → Communication module (CU-XE) → TCP/IP ->Teltonika (RUT956) → Teltonika DLMS Client

I get communication to the meter via the Teltonika DLMS client because it can scan the OBIS objects - But the values that are retrieved are incorrect

The connection flow below - currently working:
Landis&Gyr Meter (E650) → Communication module (CU-XE) → TCP/IP ->Teltonika (RUT956) → MAP 110 + MAP120

I can get communication to the meter via the MAP 110 + MAP120 because it can scan the OBIS objects and display the correct values and I’m able to configure the Meter.

5

Hi, thanks for the information,

What data should be received/sent? Could you clarify the data format and provide a screenshot example if possible?

I’ve also sent you a form to fill out so we could continue our conversation in private, as I’ll need a troubleshooting file from our device to investigate the logs. In the ticket ID field simply enter 14281

Regards,
M.

6

Good Day,

I have managed to retrive data from the meter but now I receive this message and then the router stops to publish data to the Server from the DLMS client.

{“Meter”:[{“timestamp”:1751619621,“data”:{“Voltage_L1_Va”:{“Meter1”:{“2”:“2431”}},“Voltage_L2_Vb”:{“Meter1”:{“2”:“2431”}},“Voltage_L3_Vc”:{“Meter1”:{“2”:“2434”}},“Current_L1_Ia”:{“Meter1”:{“2”:“0”}},“Current_L2_Ib”:{“Meter1”:{“2”:“0”}},“Current_L3_Ic”:{“Meter1”:{“2”:“0”}},“Freq_Hz”:{“Meter1”:{“2”:“5000”}},“ActivePower_3Ph_kW”:{“Meter1”:{“error”:260,“result”:“Failed to make connection with device: Not enough memory available.”}},“ReactivePower_3Ph_KVAr”:{“Meter1”:{“error”:260,“result”:“Failed to make connection with device: Not enough memory available.”}},“PowerFactor_pF”:{“Meter1”:{“error”:260,“result”:“Failed to make connection with device: Not enough memory available.”}}}}]}

Any advice?

7

Hello,

Will look into it with the R&D.

Regards,
M.

8

image
image657×157 4.26 KB

Current RAM status on the Router

9

Hello, @VictordeBeer , according to the R&D, it is not related to memory. It is usually caused by a faulty serial cable or incorrect device configuration. They’ve suggested that you should double-check/reconnect the cable if a serial connection is used.

Regards,
M.