Practical_modern_SCADA_protocols_-_dnp3,_60870-5_and_Related_Systems

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226 Practical Modern SCADA Protocols: DNP3, 60870.5 and Related Systems 8.6.2 Command information elements The following information elements from Table 8.15 are presented in this sub-section. Symbol SCO DCO RCO Description Single command Double command Regulating step command Table 8.15 Extract C Command information elements SCO Single command This is a command to operate a single output. Bits 2 to 7 are the Qualifier of Command sub-field. This is used for other commands also. 7 6 5 4 3 2 1 0 QOC SCS QOC 7 6 5 4 3 2 S/E QU Key – Command SCS Single command state BS1[0] = Command OFF = Command ON Key – QOC Qualifier of command QU Qualifier UI5[2..6] = No additional definition = Short pulse duration = Long duration pulse = Persistent output = Reserved for further standard definitions = Reserved for selection of other predefined functions = Reserved for special use (private range) S/E Select/Execute BS1[7] = Execute = Select An important feature of this command is that it has two forms depending on bit 7, the select and the execute form. The select form is used when select before execute operation is required. This is also known as two-phase command operation.
Fundamentals of IEC 60870-5 227 DCO Double command The double command state is used when two physical outputs are used to command operation. This is used to provide higher security against false operation due to equipment failure or transmission error. The qualifier of command sub-field is the same as for the single command. 7 6 5 4 3 2 1 0 QOC DCS QOC 7 6 5 4 3 2 S/E QU Key – Command DCS Double command state BS2[0..1] = Not permitted = Command OFF = Command ON = Not permitted RCO Regulating step command 7 6 5 4 3 2 1 0 QOC RCS QOC 7 6 5 4 3 2 S/E QU Key – Command RCS Single command state BS2[0..1] = Not permitted = Next step LOWER = Next step HIGHER = Not permitted
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Practical Modern SCADA Protocols: D
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Practical Modern SCADA Protocols: D
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Contents Preface ..................
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Contents vii 12.6 Frame reception .
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Preface ix Chapter 3: Open SCADA pr
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1 Introduction Objectives When you
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Introduction 3 Figure 1.2 PC to IED
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Introduction 5 The interconnection
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Introduction 7 a number of sub-path
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Introduction 9 The Internet protoco
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Introduction 11 Outside the utiliti
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Fundamentals of SCADA communication
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Key features of SCADA software incl
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2.2.2 Control processor unit (or CP
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2.5.2 Multi-point architecture (Mul
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2.6 Communication philosophies Fund
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Pin 8 - Data carrier detect (DCD) F
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2.7.6 Synchronous communications 2.
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The two most common modes of operat
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2.8.3 Error control/flow control Fu
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3 Open SCADA protocols DNP3 and IEC
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3.2.2 DNP 3.0 and IEC 60870 protoco
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4.2 Interoperability and open stand
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Preview of DNP3 69 The DNP3 User Gr
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Preview of DNP3 71 The capability t
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5 Fundamentals of distributed netwo
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Fundamentals of distributed network
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5.3.6 Full-duplex procedures Fundam
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The message sequences are shown in
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These rules are illustrated in the
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Freeze functions are typically used
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6 Advanced considerations of distri
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Advanced considerations of distribu
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6.2 Interoperability between DNP3 d
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6.3.2 Data classes and events Advan
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Recommendations: 6.3.9 Multiple obj
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6.3.15 Time-tagged binary input eve
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Preview of IEC 60870-5 171 7.2 Stan
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Preview of IEC 60870-5 173 Under IE
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Page 197 and 198: 8.1.9 IEC 60870-5-101 1995 Fundamen
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Page 203 and 204: 8.4 Data link layer Fundamentals of
Page 205 and 206: 8.4.2 Order of information Fundamen
Page 207 and 208: 8.4.5 Unbalanced and balanced trans
Page 209 and 210: Fundamentals of IEC 60870-5 193 Sta
Page 211 and 212: Station/link initialization, balanc
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Page 217 and 218: Function codes from secondary stati
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Page 221 and 222: The following notes apply to these
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Page 235 and 236: Fundamentals of IEC 60870-5 219 Qua
Page 237 and 238: Fundamentals of IEC 60870-5 221 Key
Page 239 and 240: Fundamentals of IEC 60870-5 223 SVA
Page 241: Fundamentals of IEC 60870-5 225 Key
Page 245 and 246: 8.6.4 Qualifier information element
Page 247 and 248: Key - QOC Qualifier of command QU Q
Page 249 and 250: Fundamentals of IEC 60870-5 233 SCQ
Page 251 and 252: Fundamentals of IEC 60870-5 235 LOF
Page 253 and 254: Fundamentals of IEC 60870-5 237 FBP
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Page 265 and 266: Type 11 Measured, scaled value Fund
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Page 273 and 274: Type 20 Packed single-point with st
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Fundamentals of IEC 60870-5 277 Typ
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Fundamentals of IEC 60870-5 285 Val
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9.1.1 Station initialization Advanc
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9.1.2 Data acquisition Advanced con
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Advanced considerations of IEC 6087
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In Figure 9.4 the following time sy
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Basic application functions: 9.2.3
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10 Differences between DNP3 and IEC
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Data objects: Differences between D
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10.2 Which one will win? Difference
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Intelligent electronic devices (IED
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11.2.5 Communications Intelligent e
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Ethernet and TCP/IP networks 317 tr
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Ethernet and TCP/IP networks 319 Th
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Ethernet and TCP/IP networks 321 Fi
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12.2.5 10Broad36 12.2.6 1Base5 Ethe
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Ethernet and TCP/IP networks 325 si
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Ethernet and TCP/IP networks 327 As
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12.8.4 Length Ethernet and TCP/IP n
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Ethernet and TCP/IP networks 331 To
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12.11.8 Fast Ethernet Ethernet and
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12.12 TCP/IP Ethernet and TCP/IP ne
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Ethernet and TCP/IP networks 337
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Ethernet and TCP/IP networks 339 Fi
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Here follows a brief description of
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Unicast addresses Ethernet and TCP/
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The three common fields are: Ethern
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Ethernet and TCP/IP networks 347 Th
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13 Fieldbus and SCADA communication
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Fieldbus and SCADA communications s
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• Programmable logic controllers
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Three such ‘services’ are readi
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Figure 13.9 High speed Ethernet and
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14.2 UCA development UCA protocol 3
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14.3.1 Uniform communications infra
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UCA protocol 367 14.3.4 Uniform app
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14.3.5 Uniform data model UCA proto
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Figure 14.6 Device object model ove
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UCA protocol 373 An excellent refer
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Applications of DNP3 and SCADA prot
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PDS 500 Data Map Applications of DN
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16 Future developments Objectives W
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Appendix A Glossary 3GPP 10Base2 10
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Appendix A: Glossary 395 ATM Attenu
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Appendix A: Glossary 397 Capacitanc
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Appendix A: Glossary 399 Decibel (d
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Appendix A: Glossary 401 ESS Etherl
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Appendix A: Glossary 403 I/O addres
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Manchester encoding Appendix A: Glo
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Appendix A: Glossary 407 Packet PAD
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Appendix A: Glossary 409 RFI Ring R
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Appendix A: Glossary 411 TDMA TDR T
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Appendix A: Glossary 413 X.25 CCITT
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Appendix B: Implementers of DNP3 41
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Appendix B: Implementers of DNP3 41
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DNP3 device profile Appendix C: Sam
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Appendix C: Sample device profile d
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Software setup Appendix D: Practica
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Appendix D: Practicals 431 1. Set u
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Objectives • To show how a basic
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Implementation/setting up TCP/IP Cl
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Appendix D: Practicals 437 Click on
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Appendix D: Practicals 441 Now rese
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Appendix D: Practicals 443 Practica
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Appendix D: Practicals 445 This sho
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Appendix D: Practicals 447 Once you
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IMPORTANT NOTICE: Appendix D: Pract
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Appendix D: Practicals 451 (This is
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Appendix D: Practicals 453 PRACTICA
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Click on the Diags button and the f
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Appendix D: Practicals 457 The scre
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Appendix D: Practicals 459 Assume t
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Appendix D: Practicals 461 Problem
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Network Loading Assumptions Item Da
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2. IEC 60870-5-101 Packet Analysis
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3.1.1.1.1 Appendix D: Practicals 46
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Appendix D: Practicals 469 Valid Ca
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3.1.1.1.7 Type 14 INFORMATION OBJEC
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Appendix D: Practicals 473 3.1.1.1.
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Appendix D: Practicals 475 QDS Qual
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Appendix D: Practicals 477 7 6 5 4
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3.1.1.1.11 Communication 1 Appendix
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Communication 1 Answer Appendix D:
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CITECT PRACTICAL For Citect Version
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Appendix D: Practicals 485 Next cli
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Appendix D: Practicals 487 (3) Defi
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Appendix D: Practicals 489
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Appendix D: Practicals 491 (4) Crea
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Appendix D: Practicals 493 Use the
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Appendix D: Practicals 497 When fin
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Appendix D: Practicals 499 What is
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Communication 2 05640DC405001A00637
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05640DC405001A006378C6C601010200003
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Appendix D: Practicals 505 What are
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Appendix D: Practicals 507 01 01 01
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Appendix D: Practicals 509 E2 81 00
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Appendix D: Practicals 511 At fist
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Appendix D: Practicals 513 Then rem
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Appendix D: Practicals 515 The next
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Packet Interpretation Practical App
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056408C40300A200EA80C5C5171E4405641
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Appendix D: Practicals 521 Communic
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05640DC405001A006378C6C601010200003
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Appendix D: Practicals 525 What is
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01 01 01 01 01 01 01 crc:BB crc:C3
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Appendix D: Practicals 529 Read Dat
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Index 531 Carrier sense with multip
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Index 533 support for protocol, 310
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Index 535 process related, 220 bina
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Index 537 signal quality detector,
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