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Link Status Check
Tx: 7E //Start Frame
A0 //Des.Address
19 //Length
03 //Read Fn code
41 //
B2 //Instance Value
32 //Poll or final bit
39 //4bit receive sequence number ( N/R)
E6 // Des. LSAP
E6 //Source LSAP // If E6=Request, E7 = Response
00 // LLC Quality Reserved for Future.
C0 01 C1
00 0F //OBIS Class Id
00 00 28 00 00 FF //( OBIS Code -- 0.0.40.0.0.255 )
01 //Attribute Id
00
F9 79 //CRC ( FCS-16 )
7E //End Frame
Please mention the unknown pending data byte description and also share the Instance value for data transmission and receive details.
Hi, 03 is server address. 41…
Hi,
03 is server address.
41 is client address.
32 and 39 is header CRC.
00 is data index.
Read this to get more information:
https://en.wikipedia.org/wiki/High-Level_Data_Link_Control
BR,
Mikko
Link Status Check Tx: 7E /…
Link Status Check
Tx: 7E //Start Frame
A0 //Des.Address
19 //Length
03 //server address
41 //client address
B2 //Instance Value
32 //header CRC
39 //header CRC
E6 // Des. LSAP
E6 //Source LSAP // If E6=Request, E7 = Response
00 // LLC Quality Reserved for Future.
C0 01 C1
00 0F //OBIS Class Id
00 00 28 00 00 FF //( OBIS Code -- 0.0.40.0.0.255 )
01 //Attribute Id
00 //data index.
F9 79 //CRC ( FCS-16 )
7E //End Frame
but C0 01 C1 ,mention details??