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Addressing 1 and 2 byte

By JavierDiaz , 18 April, 2025
Forums
Gurux.DLMS

Hi,

I use the settings:

Max payload size - 125

Packet SNRM with address size 1:

7E A0 1F 02 21 61 93 FF 13 81 80 12 05 01 7D 06 01 7D 07 04 00 00 00 01 08 04 00 00 00 01 89 E1 7E

Packet SNRM with address size 2:

7E A0 1F 02 21 61 93 FF 13 81 80 12 05 01 7D 06 01 7D 07 04 00 00 00 01 08 04 00 00 00 01 89 E1 7E

As far as I understand, the address with a size of 1 should be different, but here the packets are the same.

I use GXDLMSClient.GetServerAddress(logicalAddress, physicalAddress, addressSize) and see, that it return same value for size 1 and size 2.

Is this address formation correct?

Thanks.

Profile picture for user Kurumi

Kurumi

1 year 4 months ago

Hi, This is correct. When…

Hi,

This is correct. When the logical address is used, the GetServerAddress uses two bytes, or four if it doesn't fit for two. For that reason, the generated frames are the same.

BR,
Mikko

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