Problem with DLMS protocol: I can't get any object.

AliBahar said:

Hi.
I am beginner in dlms protocol. i want to communicate with HXF300 electrical meter. I perform application association successfully but i have problem in getting objects:

I have sent the following hex frame for reading clock:
// 7e a0 19 03 21 32 6f d8 e6 e6 00 c0 01 81 00 08 00 00 01 00 00 ff 02 00 65 d7 7e
meter responds with:
// 7e a0 11 21 03 52 b1 f8 e6 e7 00 c4 01 01 01 0b a1 04 7e

and I have sent the following hex frame for reading L1 voltage:
// 7e a0 19 03 21 76 4f dc e6 e6 00 c0 01 c1 00 03 01 01 1f 07 00 ff 02 00 09 e6 7e
meter responds with:
// 7e a0 11 21 03 96 99 78 e6 e7 00 c4 01 01 01 04 56 fc 7e

I dont know what error happens.
can you tell me what is the meaning of "01 01 0b" in 1st response. and "01 01 04" in 2nd one.

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