Hi, i'm using Gurux DLMS C.
I'm receiving APDU from the meter in binary format like below. I believe its simple APDU.
Please help me understand how to parse it with gurux C library.
Thank you.

# this is sent every middle of a minute
########################################
0F # data notification
00 00 00 03 # invoke id
00 # and priority

02 02 # structure [2]
16 # enum
01 # value
01 # array
16 # 22 elements ?

Hello Gurux Community,

I have a meter that uses HDLC over DLMS/COSEM via optical or RS232 interface, working well with Gurux tools.

My backend HES sends and receives bare DLMS packets without HDLC framing or addressing. For example, a raw DLMS packet from HES looks like this:

How to prepare data to change the key after encryption. Found the C++ example in GlobalKeyTransfer(). Not sure how to convert it to C.
The expected DLMS translator output:

<MethodInvocationParameters>
<Array Qty="01" >
<Structure Qty="02" >
<Enum Value="02" />
<OctetString Value="24 bytes key" />
</Structure>
</Array>
</MethodInvocationParameters>

Thank you.

Using the API's provided, how to prepare the Profile General to look like in your example below? What need to be done before calling cl_write() to prepare array and structures.

https://www.gurux.fi/sites/default/files/issues/Profile%20Generic%20att…

Hi,

I am testing push message send using dlms C server example. I have configured the destination address and push object list. On the receiving side , python push listener client is used. How to manually activate the push message send from server side? Which function to be called to activate the push message send between the devices?

How to compile GuruxDLMSDataCollector with wirepas ? Im getting compilation error when I tried make command inside wirepas folder.

Hello,

I have a DLMS server running on a 32-bit MCU and a DLMS host also running on a 32-bit MCU, communicating via PLC. Both work correctly: I have created several objects on the server and can successfully connect, get the association view, perform read/write operations, and close the connection properly.

I am using GuruxDLMSServerExample as a example for meter. I want to test push object sending from meter to client periodically. How do I test it? Which C function is used for the creation of push object list and sending the push object? Is this push operation is supported in DLMS C library?

Hi,

I'm currently developing using the example provided here:
https://github.com/Gurux/GuruxDLMS.c/tree/master/GuruxDLMSSimpleServerE…

I've noticed that in the svr_postWrite function, the args->size parameter is always zero. As a result, the loop inside that function never executes.

Hiii

As per the dlms datagateway source , the gateway will communicate with the smart meter using serial port (HDLC) communication. Is it possible to communicate with the smart meters using TCP/IP (Wrapper) communication using ethernet?