Before commenting read Forum rules
Don't comment the topic if you have a new question.
You can create a new topic selecting correct category from Gurux Forum and then create a new topic selecting "New Topic" from the top left.
Forums
I have a meter that I use it's gprs modem to read data. but when I read parameters , it send some Irrelevant packets with different source and target address. is there a way to ignore this packets ?
in below example, last packet is of this kind.
Send AARQ request.
TX: 00010001000100386036A1090607608574050801018A0207808B0760857405080201AC0A80083030303030303030BE10040E01000000065F1F0400001E5DFFFF
RX: 00010001000100446142A109060760857405080101A203020100A305A10302010088020780890760857405080201AA0A80083030303030303030BE10040E0800065F1F040000101801000007
Read object type Register index: 3
TX: 000100010001000DC001C100030100200700FF0300
RX: 000100010001000AC401010002020F001623
Read object type Register index: 2
TX: 000100010001000DC001C100030100200700FF0200
RX: 0001000100010007C4010100120000
Read object type Register index: 3
TX: 000100010001000DC001C100030100340700FF0300
RX: 000100010001000AC401010002020F001623
Read object type Register index: 2
TX: 000100010001000DC001C100030100340700FF0200
RX: 0001000100010007C4010100120000
Read object type Register index: 3
TX: 000100010001000DC001C100030100480700FF0300
RX: 000100010001000AC401010002020F001623
Read object type Register index: 2
TX: 000100010001000DC001C100030100480700FF0200
RX: 0001000100010007C40101001200D2
Read object type Register index: 3
TX: 000100010001000DC001C1000301001F0700FF0300
RX: 000100010001000AC401010002020FFE1621
Read object type Register index: 2
TX: 000100010001000DC001C1000301001F0700FF0200
RX: 0001000100010007C4010100120000
Read object type Register index: 3
TX: 000100010001000DC001C100030100330700FF0300
RX: 000100010001000AC401010002020FFE1621
Read object type Register index: 2
TX: 000100010001000DC001C100030100330700FF0200
RX: 0001000100100015DD100000000030333939333330303036313612001F
Hi,
Hi,
That is done automatically. If the source and target address are different than what the client is using data is skipped. This is happening all the time when there are several meters in the RS-485 bus.
BR,
Mikko
But why I receive the last
But why I receive the last packet?
Hi,
Hi,
It's shown on the trace, but GXDLMSClient.GetData should skip it. What programming language you are using? I can verify it.
BR,
Mikko
We are using c#. It does not
We are using c#. It does not ignore and after that packet I get this error :
Insufficient memory to continue the execution of the program
Hi,
Hi,
I'll test this right away.
BR,
Mikko
Thank you. Please consider
Thank you. Please consider the error I get after.
Hi,
Hi,
I checked this and it works like expected. Received data is handled. The problem is that the meter sends invalid data. The message is broken and it's causing the problem.
You should inform the meter manufacturer of this.
I'll talk should messages like this just ignored so they don't break the communication.
BR,
Mikko
Thank you very much. I'll
Thank you very much. I'll inform the manufacturer.
I talked with meter
I talked with meter manufacturer and they say, It's a keep a live packet and can be recognized with "DD". Despite the matter that keep alive should not be send middle of reading, do you think it's dlms standard?
Hi,
Hi,
I'm sorry to say, but 0xDD is not keep-alive. It's GeneralCiphering where data is encrypted. This is defined in the DLMS standard.
BR,
Mikko
Thanks
Thanks