OPC Foundation and InduSoft

OPC Foundation The interoperability standard for industrial automation & related domainsOPC Technology & The Futurewith OPC Unified Architecture Nathan Pocock Director, Certification & Compliance nathan.pocock@opcfoundation.org

About the OPC Foundation• An independent, non-profit organization founded in 1995.• Developers of worldwide industry standards for multi-vendor interoperability and data transfer of information.• OPC specifications are defined by volunteers from over 450 members worldwide and are also available as IEC standards.• Extensive adoption from manufacturers and solution-providers in factory and process automation.• Future-thinking technology that provides platform-independent connectivity of devices, systems, networks, and enterprise computing solutions.

Evangelism & Worldwide EventsPromoting Awareness: Education:• Seminars • Developer Workshops• Trade-shows • Interoperability Workshops• Media

History: The “original problem” Before OPC With OPC HMI #A HMI #B HMI #A HMI #BModbus Profibus Modbus ProfibusProfinet DH+ OPC ClientsDH+ Profinet OPC OPC FF CIP FF CIP EGD Bacnet EGD Bacnet DNP SNMP DNP SNMP TSAA AS511 TSAA AS511 OPC Server UDC Others… OPC UDC Server Others… Modbus Profinet DH+ Bacnet Others… PLC DCS Controller PLC DCS Controller

Features Provided By OPC Features Benefits• Discover OPC Servers on the • Clients can be completely agnostic to network/PC the underlying PLC, protocol, and addressing scheme• View the tags available in the server • Easy configuration possible by simply• Tags could be grouped into a pointing + clicking hierarchy • Reading and writing to tags is much• Read one or more tags easier than memorizing a PLC address• Write to one or more tags • Optimized traffic on the wire thanks to• Subscribe to tags and receive value- a highly-efficient subscription model. change notifications – Adding more clients does not necessarily add more overhead.• Easily identify good/bad data

History: Technology evolved…• Over time, other problems needed solving and new OPC technology standards emerged: Problem Solution How to let OPC solve more problems “OPC” re-branded: Data Access More capabilities needed in Data Access OPC Data Access 1.0, 2.05a, 3.0 Need to store real-time values OPC Historical Data Access Need to standardize Alarm Notifications OPC Alarms & Conditions Need to standardize data acquisition via internet OPC XML-DA Need to allow PLC-to-PLC communications OPC Data eXchange Need to secure access to servers/tags OPC Security Need to standardize batch-process operations OPC Batch Need to standardize a simple PLC program OPC Program 7

Benefits From OPC Adoption• Vendors were no longer required to maintain extensive device protocol libraries• High-quality and affordable device-drivers (Servers) emerged• More specialized Clients emerged• Developer toolkits emerged for rapid development of custom applications that could also integrate with the OPC infrastructure• End-users could mix-and-match numerous vendor products to achieve the best overall solution

Achieving Vendor Interoperability Compliance Certification Program• Compliance program to help vendors • Certified products are tested in a develop compliant products sanctioned & independent Test Lab• Test Tools available to members • Rules of certification governed by the Compliance Working Group – open to• Interoperability workshops members• Certification program • Certification testing includes: – Compliance to OPC specifications – Interoperability with other vendor products – Robustness & recovery – Usability (interface, document etc.) – Resource efficiency (36hr load-testing)

Award of OPC Certification

History: Integration Difficulties• Each OPC Specification solved a OPC Application unique problem DA A&E Batch Security• Each OPC Specification was its XML own self-contained solution HDA DA DX• No “true” integration between OPC technologies• Development effort doubled.. Tripled.. quadrupled etc.• Development somewhat eased by DA A&E Batch Security Microsoft’s COM/DCOM platform XML HDA DA DX OPC Application

OPC Adapts to NEW Challenges Challenge Solution• Integrate existing technologies • Re-design OPC technology• Provide platform-independence implementation:• Extensibility, for newer technology – Model a framework incorporating profiles and specifications all existing specifications• Work online, remain secure: – Use standard platforms not tied to – Resist remote attacks a vendor, e.g. TCP/IP, openSSL – Protect valuable data etc. – Audit logs (who did what) – Use standard security tools for• Be compatible with OPC Classic certificates and encryption• Stay FAST • “Unified Architecture” born!• Provide MORE diagnostics.• Be easy! No more DCOM!

OPC UA: Feature Summary• Incorporates ALL of the OPC Classic specifications into one cohesive standard: DA, HDA, A&E, DX, XMLDA, Batch, Security, Program etc.• Vendors that support one technology, e.g. DA, will be able to very quickly and easily add others, e.g. A&E, HDA, Programs etc.• Provides backwards compatibility with OPC Classic via Proxy/Gateway components.• Achieves other goals for security, platform- independence, performance, and growth.• Vendor products can now quickly and easily be expanded over time to incorporate newer features and capabilities at minimal cost.• Everything you know about OPC Classic is the same in UA!

OPC UA: Extensibility 14

OPC UA: Platform Independence CE microchip TabletDesktop PC Enterprise Servers Laptop iPhone PLC/Controller

OPC UA: Security (channel)• Each UA application is uniquely identified with an x509 certificate X509 UA Server• Each UA application can be configured Trust List to trust specific apps x509• Only TRUSTED Clients can connect to your valuable Servers Client: “here’s my x509, can I connect?”• The connection can be: Server: • Insecure: for isolated networks and “I trust you, here’s my x509…” maximum performance • Encrypted with standard algorithms (RSA, Client: SHA1) offering 128, 256, 512, 1024, 2048 “I trust you too” bit ciphering etc.• Each UA message/packet is: X509 UA Client • Signed, to prevent tampering Trust List x509 • Sequenced to eliminate message-replay, injection, and detect lost messages

OPC UA Security: Authentication• Only the RIGHT people need access to your systems/data. I can prove who I am• Users can be identified via: – Anonymous (no security) – Login name and password – X509 certificate – Kerberos – Other?• Restrict user access to data I can’t see through the• You can log ALL activities encryption let alone guess credentials

Unified Architecture Summary• OPC Unified Architecture – Enables platform independence – Adds reliability and robustness – Extensible architecture allows for future growth – Communicates information, not just data – Maintains performance with reliability – Security may help achieve regulatory compliance – Backwards compatible with “OPC Classic” – No more DCOM headaches• OPC Unified Architecture & Collaboration – Enable enterprise interoperability – Better Information model integration• Backed by an “open” Certification program 18

OPC Technology Summit:Save the date! October 2012• Global summit to promote OPC education• October 16-18, 2012• Renaissance Orlando at SeaWorld, Florida, USA• Who should attend: OPC End-users, Developers and Integrators• Agenda includes: • OPC UA technology and value proposition • Supplier/developer presentations • End-user presentations (various markets) • Certification and compliance overview • Keynote: Control Systems Cyber Security expert from Department of Homeland Security• Vendor exhibit area with table-top displays• Register now at www.opcfoundation.org/events

The EndThe interoperability standard for industrial automation & related domains Questions… Nathan Pocock Director, Certification & Compliance OPC Foundation nathan.pocock@opcfoundation.org

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OPC Foundation and InduSoft

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