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Need reference for HDLC data byte

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By natali , 10 May, 2019
Forums
General discussion

hi

i have a problem to understand concept of the byte that use in the below sample masagge
please help me to find reference manual for simple describe this SNRM & AARQ & AARE structure means

--> SNRM including proposed parameter (client_max_receive_pdu_size=240)
--> 0x7E, 0xA0, 0x0F, 0x21, 0x41, 0x93, 0x01, 0x37, 0x81, 0x80, 0x03, 0x06, 0x01,
0xF0, 0xEC, 0x15, 0x7E

<-- UA including negotiated parameters
<-- 0x7E, 0xA0, 0x1E, 0x41, 0x21, 0x73, 0x0D, 0x6F, 0x81, 0x80, 0x12, 0x05, 0x01,
0xF0, 0x06, 0x01, 0x80, 0x07, 0x04, 0x00, 0x00, 0x00, 0x01, 0x08, 0x04, 0x00, 0x00,
0x00, 0x01, 0xD8, 0x47, 0x7E
Comment: HDLC-Connection established succesfully

--> Read-Request (attribute "time" of IC 8 "clock")
--> 0x7E, 0xA0, 0x11, 0x21, 0x41, 0x32, 0x61, 0xEE, 0xE6, 0xE6, 0x00, 0x05, 0x01,
0x02, 0x4F, 0x08, 0xCE, 0xDA, 0x7E
<-- Read-Response (date: 2006-02-28, time: 09:55:35.00, deviation to UTC:
+60min, daylight saving time not active)
<-- 0x7E, 0xA0, 0x1D, 0x41, 0x21, 0x52, 0x4B, 0x7A, 0xE6, 0xE7, 0x00, 0x0C, 0x01,
0x00, 0x09, 0x0C, 0x07, 0xD6, 0x0

Profile picture for user Kurumi

Kurumi

7 years 4 months ago

Hi,

Hi,

All DLMS messages are defined on the DLMS standard or colored books. You should get colored books.

BR,
Mikko

natali

7 years 4 months ago

thank you

thank you
i found green book and now reading it.
it seems difficult. I try my best

Profile picture for user Kurumi

Kurumi

7 years 4 months ago

Hi,

Hi,

DLMS is a very complicated protocol. I believe that you save a lot of time if you use our open source libraries and I'm not talking days.

BR,
Mikko

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