Practical_modern_SCADA_protocols_-_dnp3,_60870-5_and_Related_Systems

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430 Practical Modern SCADA Protocols: DNP3, 60870.5 and Related Systems
Appendix D: Practicals 431 1. Set up the PAT PC to Monitor to monitor the port. 2. Calculate the cyclic redundancy check (CRC-16) code by hitting F4. 3. Now dispatch the message from the master to the slave by hitting the F9 function key on the Modbus master. 4. The coil data bytes are packed with one bit for the status of each consecutive coil. The least significant bit of the first coil data byte conveys the status of the first coil read. If the number of coils read is not a multiple of eight, the unused data in the byte will be padded with zeros. Note that the least significant bit of the data byte in the response of the slave (03 or 0000 0011) contains the status of coil A (00011) and the next to the least significant bit indicates the status of coil B (00011). The target device’s response indicates both coils are either ON or OFF depending on whether a one (1) is considered ON or OFF in the system. 5. Confirm what you see with the PAT is the same as the protocol request message sent down the link between the Modbus master and the PAT software. Hint: Are you looking at the data in hexadecimal? Conclusion As can be seen this is a very simple protocol that is easy to setup and run. It is however rather limited in its functionality and only has the data link layer defined; hence the need for a protocol such as DNP3 which has a well structured data link and application layers (with a pseudo-transport layer as well). SESSION 2: SETTING UP A NETWORK Overview The first network based practical is for setting up a PC network and testing it at the physical and data link layer (or from a TCP/IP perspective – the network interface layer). This requires the network to be cabled up. Procedure Equipment • 6 notebook computers all with Windows 95 /98 running • A 10Base T hub (preferably an 8 port 10BaseT hub) • 6 by 10BaseT cables • NDG software installed on each PC • Windows 95/98 operating system software installed on each PC • Associated power supplies for both the 6 computers and the hub.
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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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Preview of IEC 60870-5 175 over cor
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8 Fundamentals of IEC 60870-5 8.1 T
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Fundamentals of IEC 60870-5 179 8.1
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8.1.9 IEC 60870-5-101 1995 Fundamen
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Fundamentals of IEC 60870-5 183 pro
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Fundamentals of IEC 60870-5 185 MAS
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8.4 Data link layer Fundamentals of
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8.4.2 Order of information Fundamen
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8.4.5 Unbalanced and balanced trans
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Fundamentals of IEC 60870-5 193 Sta
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Station/link initialization, balanc
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Fundamentals of IEC 60870-5 197 The
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Fundamentals of IEC 60870-5 199 To
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Function codes from secondary stati
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Fundamentals of IEC 60870-5 203 is
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The following notes apply to these
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Fundamentals of IEC 60870-5 207 Typ
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Fundamentals of IEC 60870-5 211 Whe
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Fundamentals of IEC 60870-5 215 to
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Fundamentals of IEC 60870-5 217 Mas
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Fundamentals of IEC 60870-5 219 Qua
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Fundamentals of IEC 60870-5 221 Key
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Fundamentals of IEC 60870-5 223 SVA
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Fundamentals of IEC 60870-5 225 Key
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Fundamentals of IEC 60870-5 227 DCO
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8.6.4 Qualifier information element
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Key - QOC Qualifier of command QU Q
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Fundamentals of IEC 60870-5 233 SCQ
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Fundamentals of IEC 60870-5 235 LOF
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Fundamentals of IEC 60870-5 237 FBP
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Fundamentals of IEC 60870-5 239 In
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Fundamentals of IEC 60870-5 247 Val
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Type 11 Measured, scaled value Fund
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Type 20 Packed single-point with st
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Fundamentals of IEC 60870-5 259 Pro
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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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Applications of DNP3 and SCADA prot
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Page 397 and 398: PDS 500 Data Map Applications of DN
Page 407 and 408: 16 Future developments Objectives W
Page 409 and 410: Appendix A Glossary 3GPP 10Base2 10
Page 411 and 412: Appendix A: Glossary 395 ATM Attenu
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Page 421 and 422: Manchester encoding Appendix A: Glo
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Page 429 and 430: Appendix A: Glossary 413 X.25 CCITT
Page 431 and 432: Appendix B: Implementers of DNP3 41
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Page 435 and 436: DNP3 device profile Appendix C: Sam
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Page 445: Software setup Appendix D: Practica
Page 449 and 450: Objectives • To show how a basic
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Page 453 and 454: Appendix D: Practicals 437 Click on
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Page 469 and 470: Appendix D: Practicals 453 PRACTICA
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Page 481 and 482: 2. IEC 60870-5-101 Packet Analysis
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Page 487 and 488: 3.1.1.1.7 Type 14 INFORMATION OBJEC
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Page 495 and 496: 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 495 Click on
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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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