Hello,

I try to read profile generic on SL7000 using ANSI C.
I read using "com_read" for "1.1.98.128.4.255", and attributeOrdinal value is 2. the return code is: 258 Invalid parameter

here it's the code:
cosem_init(&profile1.base, DLMS_OBJECT_TYPE_PROFILE_GENERIC, "1.1.98.128.4.255");
ret = com_read(&profile1.base, 2);

when I capture the packet from the meter to the controller, and decode using XML translator, it says:

Hello,
I used GuruxDLMS.c running on ESP32 microcontroller, to read data from SL7000 meter.
I have success to read meter clock & serial number, for testing I read it every one second.
after run for several minutes, the microcontroller is crash. when I monitor the Free Heap, it show the heap used several bytes after we call "com_read" function, so the available heap decreased every we call it, and causes system reset when it reach the lower point.

Hello, I am trying to read from HXE energy meter using optical probe. From the documentation, the meter works with Protocol mode E. Is there a python Library i can use to get this done, and also do i need any information before i can read from it?
Currently when I send '/?!\r\n', I get '/HXE5\2HXE12' as reply from the meter. what do i need to do next?

Thanks

Hi all,

I'm using an italian standard meter and our meters don't need system title during get/set request:

(example:
7E A0 36 02 21 03 32 6C C0 E6 E6 00 DB 08 00 00 00 00 00 00 00 00 1E 30 80 00 00 55 0E 89 E1 E4 0C A5 EB BB 00 5C AF D9 A5 F3 B8 B1 E1 7D AF E0 23 37 B9 85 10 71 2C 7E ,
08 00 00 00 00 00 00 00 00 is my system title (08 is the lenght) and if I delete this and set 00 as substitute, I can decrypt this frame correctly.)

There is a method to not add system title?

Thanks

Dear Mr. Mikko,

Hi,
I am trying to parse HLS data from COSEM Meter to obtain Invocation Counter. The problem is I do not understand where to look for it. Some simple reponse examples from my meter:

before Decrypt or Authentication: CF 2A 10 00 00 00 96 ...... position 3
before Decrypt: CC 81 E0 30 00 00 0F ......... position 4
before Decrypt: CC 1A 30 00 00 00 BF.......... position 3
before Decrypt: CC 82 01 F8 30 00 00 00 C0........ position 5

Dear Forum Members,

I am trying to read from Holley DTSD545. There is an example the below link
How to know
"Register object\ L1 Voltage Inst. value"
"Register object\ L2 Voltage Inst. value"

- 1E AF 49 Current Register Address
- FE 0F D4 Voltage Register Address

Is there any dictionary or mapping to find "Holley DTSD545" object registry.

HI,

I am trying to read L&T ER300P meter using Java DLMS statck. I have following queries. Please help me out.

1. Meter is showing all Cumulative kwh, kvah TODwise. But I couldn't read it as instantaneous parameter, using this OBIS code 1.0.1.8.1.255 I get this error "Access Error : Device reports a undefined object".

Please help me to read cumulative TODwise energies.

Dear Sir,
As mentioned in Green book that the below are input and output of GCM

Input to GCM Block is
For Authenticated Encryption

1. Plain Text
2. Encryption Key
3. Authentcated Key
4. Nounce(IV || System Title)

Output:
1. Ciphered Text
2. Authentication Tag

What is Input and Ouput of GMAC?

I am using LN_WITH_CIPHERING application association using the HIGH_SECURITY_GMAC authentication mechanism.
In 4 Pass method ,I am able to get PASS-1 and PASS-2 but not able to generate
PaSS-3 GMAC(SC||AK||SToC)

I am reading parameters from L&T ER300P meter. I see following parameters on Meter display like

1. Reset Period MD1
2. Reset Period MD2
3. Maximum of previous MD1
4. Maximum of previous MD2

I want to know from which profile I can read these data? Whether these data available in Billing Profile?