DNP3
1
DNP APDU Message Header Object Header Data Object Header Data DUI IO DUI Appl. Ctrl Func. Code Appl. Ctrl Func. Code Internal Indication Request Header Response Header Object Group Object Variation Qualifier Range 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 First Final Confirm Unsolicited Secuence 0X00 Confirm 0x01 Read 0x02 Write 0x03 Select 0x04 Operate 0x05 Direct operate 0x06 Direct Op. No Ack 0x07 Immediate Freeze 0x08 Immediate Freeze No Ack 0x09 Freeze and Clear 0x0A Freeze and Clear No Ack 0x0B Freeze and Time 0x0C Freeze and Time No Ack 0x0D Cold Restart 0x0E Warm Restart 0x0F Init Data to Defaults 0x10 Initialize Application 0x11 Start Application 0x12 Stop Application 0x13 Save Configuration 0x14 Enable Unsolicited Msgs 0x15 Disable Unsolicited Msgs 0x16 Assign Class 0x17 Delay Measurement 0x00 Confirm 0x81 Response 0x82 Unsolicited Response FIRST OCTET RESTART DEV TROUBLE LOCAL NEED TIME CLASS 3 CLASS 2 CLASS 1 ALL STATIONS 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 SECOND OCTET RESERVED RESERVED BAD CONFIG ALREADY EXEC BUFFER OVFL OUT OF RANGE OBJECT UNKNOWN BAD FUNCTION QUALIFIER CODE 0 8-BIT Start and Stop Indices 1 16-BIT Start and Stop Indices 2 32-BIT Start and Stop Indices 3 8-BIT Absolute Address Indentifiers 4 16-BIT Absolute Address Indentifiers 5 32-BIT Absolute Address Indentifiers 6 No Range Field 7 8-BIT Quantity 8 16-BIT Quantity 9 32-BIT Quantity 11 (0x0B) Variable Array INDEX SIZE (REQUEST ONLY- QUAL CODE=11) 0 Dataless Object, No Further Indexing 1-1 Octet Index or Indetifier Size 2-2 Octet Index or Indetifier Size 3-4 Octet Index or Indetifier Size INDEX SIZE (RESPONSE ONLY) 0 –No Index, Packed 1-1 Octet Index 2-2 Octet Index 3-4 Octet Index 4-1 Octet Index Size 5-2 Octet Index Size 6-4 Octet Index Size DNP= DISTRIBUITED NETWORK PROTOCOL APDU= APPLICATION PROTOCOL DATA UNIT APCI= APPLICATION PROTOCOL CONTROL INFORMATION DUI= DATA UNIT IDENTIFIER IO= INFORMATION OBJECT AC AC FC IIN FC
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Transcript of DNP3
DNP APDU Message Header Object Header Data Object Header Data
APCI DUI IO DUI IO
Appl.Ctrl
Func.Code
Appl.Ctrl
Func.Code
Internal Indication
Request Header Response Header
ObjectGroup
ObjectVariation
Qualifier Range
7 6 5 4 3 2 1 07 6 5 4 3 2 1 0
Firs
tF
inal
Con
firm
Uns
olic
ited
Sec
uenc
e
0X00 Confirm0x01 Read0x02 Write0x03 Select0x04 Operate0x05 Direct operate0x06 Direct Op. No Ack0x07 Immediate Freeze0x08 Immediate Freeze No Ack0x09 Freeze and Clear0x0A Freeze and Clear No Ack0x0B Freeze and Time0x0C Freeze and Time No Ack0x0D Cold Restart0x0E Warm Restart0x0F Init Data to Defaults0x10 Initialize Application0x11 Start Application0x12 Stop Application0x13 Save Configuration0x14 Enable Unsolicited Msgs0x15 Disable Unsolicited Msgs0x16 Assign Class0x17 Delay Measurement
0x00 Confirm0x81 Response0x82 Unsolicited Response
FIRST OCTET
RE
ST
AR
TD
EV
TR
OU
BLE
LOC
AL
NE
ED
TIM
E
CLA
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3
CLA
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2
CLA
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1A
LL S
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7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0SECOND OCTET
R
ES
ER
VE
D
RE
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RV
ED
B
AD
CO
NF
IG
ALR
EA
DY
EX
EC
BU
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ER
OV
FL
O
UT
OF
RA
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EO
BJE
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D F
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CT
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QUALIFIER CODE0 8-BIT Start and Stop Indices1 16-BIT Start and Stop Indices2 32-BIT Start and Stop Indices3 8-BIT Absolute Address Indentifiers4 16-BIT Absolute Address Indentifiers5 32-BIT Absolute Address Indentifiers6 No Range Field7 8-BIT Quantity8 16-BIT Quantity9 32-BIT Quantity11 (0x0B) Variable Array
INDEX SIZE(REQUEST ONLY- QUAL CODE=11)0 Dataless Object, No Further Indexing1-1 Octet Index or Indetifier Size2-2 Octet Index or Indetifier Size3-4 Octet Index or Indetifier Size
INDEX SIZE(RESPONSE ONLY)0 –No Index, Packed1-1 Octet Index2-2 Octet Index3-4 Octet Index4-1 Octet Index Size5-2 Octet Index Size6-4 Octet Index Size
DNP= DISTRIBUITED NETWORK PROTOCOL
APDU= APPLICATION PROTOCOL DATA UNIT
APCI= APPLICATION PROTOCOL CONTROL INFORMATION
DUI= DATA UNIT IDENTIFIER
IO= INFORMATION OBJECT
AC AC FC IINFC
