Unable to read profile generic object of meter ER300P using method ReadRowsByRange().

By pradson , 22 May, 2019

Forums

Hi Mikko,

I am trying to read DLMS/COSEM compatible ER300P meter using Gurux C++.

I am able to read register and data objects properly but not able to read profile generics objects.
I am reading profile generic object "1.0.99.1.0.255" (15 Minutes) by method ReadRowsByRange() but I am unable to read it. It some times returns Error "Device reports Read-Write denied" and some times
"Invalid parameter".

Actually, same I am able to read using "DLMSDirector". So, Why I am facing these error using Gurux C++ lib? What is the missing in my code sample?

Kindly suggest me asap.

Kindly find below mentioned code sample and communication data and respected errors.

------------------------------------------------------------------------
Sample-1:
-------------------------------------------------------------------------
CGXDLMSProfileGeneric *obj = new CGXDLMSProfileGeneric("1.0.99.1.0.255");
CGXDateTime start(2019, 06, 22, 8, 0, 0, 0);
CGXDateTime end(2019, 06, 22, 9, 0, 0, 0);

obj->SetAccess(2, DLMS_ACCESS_MODE_READ);

if ((ret = comm.ReadRowsByRange(obj, start, end, rows)) != 0)
{
str = "Error: ";
str += CGXDLMSConverter::GetErrorMessage(ret);
str += "\r\n";
WriteValue(str);
}else{
WriteValue(rows.ToString());
}

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

------------------------------------------------------------------------
Sample-2:
-------------------------------------------------------------------------
CGXDLMSProfileGeneric *obj = new CGXDLMSProfileGeneric("1.0.99.1.0.255");

CGXDateTime start = CGXDateTime::Now();
start.AddHours(-2);

CGXDateTime end = CGXDateTime::Now();
end.AddHours(-1);

obj->SetAccess(2, DLMS_ACCESS_MODE_READ);

if ((ret = comm.ReadRowsByRange(obj, start, end, rows)) != 0)
{
str = "Error: ";
str += CGXDLMSConverter::GetErrorMessage(ret);
str += "\r\n";
WriteValue(str);
}else{
WriteValue(rows.ToString());
}

------------------------------------------------------------------
Communication string:
------------------------------------------------------------------
InitializeConnection
<- 14:23:54 00 01 00 20 00 01 00 34 60 32 A1 09 06 07 60 85 74 05 08 01 01 8A 02 07 80 8B 07 60 85 74 05 08 02 01 AC 06 80 04 6C 6E 74 31 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 40 1E 1D FF FF
-> 14:23:54 00 01 00 01 00 20 00 2B 61 29 A1 09 06 07 60 85 74 05 08 01 01 A2 03 02 01 00 A3 05 A1 03 02 01 00 BE 10 04 0E 08 00 06 5F 1F 04 00 00 10 1C 02 00 00 07
<- 14:23:58 00 01 00 20 00 01 00 40 C0 01 C1 00 07 01 00 63 01 00 FF 02 01 01 02 04 02 04 12 00 08 09 06 00 00 01 00 00 FF 0F 02 12 00 00 09 0C 07 E3 05 16 02 0C 17 36 FF FE B6 00 09 0C 07 E3 05 16 02 0D 17 39 FF FE B6 00 01 00
-> 14:24:00 00 01 00 01 00 20 01 FE C4 01 C1 00 01 04 02 17 09 0C 07 E3 05 16 FF 0C 1E FF FF 01 4A 00 06 00 00 13 82 06 00 00 17 39 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 05 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 2E 05 00 00 00 00 05 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 DF FF 02 17 09 0C 07 E3 05 16 FF 0C 2D FF FF 01 4A
00 06 00 00 13 83 06 00 00 17 47 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 05 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 2F 05 00 00 00 00 05 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 DF FF 02 17 09 0C 07 E3 05 16 FF 0D 00 FF FF 01 4A 00 06 00 00 13 7F 06 00 00 17 59 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 05 00 00 00 00 06 00 00
00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 2D 05 00 00 00 00 05 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 DF FF 02 17 09 0C 07 E3 05 16 FF 0D 0F FF FF 01 4A 00 06 00 00 13 88 06 00 00 17 B1 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 05 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 32 05 00 00 00 00 05 00
00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 00 00 06 00 00 DF FF

----------------------------------------------------
Error:
----------------------------------------------------
"Invalid parameter."

Thanks & Regards,
Pradson

Hi,

The reason usually for this is that ReadRowsByRange is not implemented very well for the meter.
Some meters expect that start and end time minutes and seconds are zero. Sometimes time zone must not use. Can you read profile generic with any app? If you can, I can find the correct parameters for you.
If you can't you should contact your meter vendor and ask this from them

BR,
Mikko

Hi Mikko,

Many thanks for your prompt help.

Actually I am able to read this meter using Gurux DLMSDirector application. I mentioned this already. And if I am able to read using DLMSDirector app, then Gurux c++ lib should have worked.

I have one doubt, whenever I read meter using DLMSDirector app by ReadRowsByRange() method and if I pass "to date-Time" greater than the upcoming sample value, then DLMSDirector app tells "Access Error : Device reports Read-Write denied".

For example:
If the range is: (08:00 to 09:15) and meter time is 09:01 or 09:14, then app reports the same error.

Kindly suggest me.

One more question:
I want to read the last value of the profile generic objects ( "1.0.99.1.0.255"(15 Minutes) , "1.0.99.2.0.255" (daily) etc...) by single query. Could it possible for this meter? Kindly suggest me this also.

Thanks & Regards,
Pradson

Hi Mikko,

I am able to read ER300P meter with method "ReadRowsByRange" using DLMSDirector app, but unable to read using Gurux C++.

Kindly suggest me asap...

Regards,
Pradson

Hi Mikko,

I am waiting for your response.

Regards,
Pradson

Hi Mikko,

The DLMSDirector application is working to read ER300P meter but I am facing problem in Gurux C++.
Kindly suggest me what will be the correct arguments for ReadRowsByRange() methods to read that meter?

Regards,
Pradson

Hi Mikko,

The UpdateValue() function inside ReadRowsByRange() is returning 258 error.
Kindly check below mentioned function.

CGXCommunication::ReadRowsByRange()
{
...
ret = m_Parser->ReadRowsByRange(pObject, start, end, data); // ret =0 (Success)
ret = ReadDataBlock(data, reply); // ret =0 (Success)
ret = m_Parser->UpdateValue(*pObject, 2, reply.GetValue()); // ret = 258 (Error)
...
}

Regards,
Pradson

Hi Pradson,

I'm sorry for the slow reply. This was a little busy week. I believe that you are right. Some meters return an error if the end time is too high. This is a meter issue, but meter manufacturers usually don't care.

I believe that star and end time must both be saved to the profile generic buffer. I propose that you set end time seconds and minutes to zero. Try if that helps.

BR,
Mikko

Hi Mikko,

Thanks for your reply.

Actually, I want to read the last value of profile generics objects. How will I achieve this? Is any other method apart from "ReadRowsByRange()" and "ReadByEntry()" methods? Because these methods are not working. Can I make such function using Gurux C++?

Mikko, as suggested by you.
How will I save the Start and end time in the profile generic buffer?
Could you explain me with the help of a example?

For ex:
profile generic object is this:
CGXDLMSProfileGeneric *obj = new CGXDLMSProfileGeneric("1.0.99.1.0.255");

and
start and end date-time is:
CGXDateTime start(2019, 5, 30, 10, 0, 0, 0);
CGXDateTime end(2019, 5, 30, 11, 0, 30, 0);

Kindly suggest me asap.

Regards,
Pradson

Hi Pradson,

Implementation of read by range and entry is different between devices. Some devices implement them well, some poorly.

Is read by entry working at all with your meter?

Is this working with your meter?

CGXDateTime start(2019, 5, 30,10, 0, 0, 0);
CGXDateTime end(2019, 5, 30,11, 0, 0, 0);
m_Parser->ReadRowsByRange(obj, start, end, data);

BR,
Mikko

Hi Mikko,

Neither read by entry is working nor ReadRowsByRange with my meter.
So please suggest me what should I do?

I have to read last entry of profile generic object.

Regards,
Pradson

Hi,

I just realize that you don't read capture objects before you read buffer.

Read attribute 2 of profile generic befo you call ReadRowsByRange. That is the reason why UpdateValue returns error.

BR,
Mikko

BR,

Mikko

Hi Mikko,

Yes, it is working.
Thanks a lot.

Regards,
Pradson

Unable to read profile generic object of meter ER300P using method ReadRowsByRange().

Forum Rules