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Avoid DCOM and Tunnel Across Firewalls and Networks

Avoid DCOM and Tunnel Across Firewalls and Networks. OPC DA Tunnelling PC to PC without DCOM Encryption between systems Across Firewall though single port. Presenters: Kevin Rutherford, Senior Applications Engineer Colin Winchester, VP Operations.

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Avoid DCOM and Tunnel Across Firewalls and Networks

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  1. Avoid DCOM and Tunnel Across Firewalls and Networks • OPC DA Tunnelling • PC to PC without DCOM • Encryption between systems • Across Firewall though single port Presenters: Kevin Rutherford, Senior Applications Engineer Colin Winchester, VP Operations

  2. OPC Tunneling and Data Aggregation with OPC DataHub Agenda • Overview of the OPC Data Hub • OPC Data Aggregation - Why & How? • OPC Tunneling – How? • Live Demo – Tunneling & Logging Remote Data to ODBC Database • Additional Application Examples • Questions & Answers

  3. OPC Data HubFunctionality Overview http://www.softwaretoolbox.com/opcdatahub

  4. 1 to N OPC Clients (i.e. HMI/SCADA) OPC DataHub OPC Data Aggregation What Is Aggregation? • Bringing together data from multiple sources • Data sources don’t all have to be OPC servers! Aggregating to a Single Computer Multiple & Varied Data Sources

  5. OPC Data AggregationWhy Aggregate? • Insure common, consistent update rate • Limit # of OPC connections • Bring disparate data sources together (OPC, DDE, ODBC) • Overcome OPC server limitations • Overcome OPC client limitations • Reduce network traffic • Improve system performance • Save money on OPC client & server licensing with some applications!

  6. What is Tunneling? OPC Tunneling • Moving OPC Data via simple TCP/IP port connection • Eliminating DCOM and Expanding Data Transport Choices Computer #1 Computer #2

  7. OPC TunnelingWhy Tunnel? • No DCOM! • No Remote Procedure Calls (RPC) • Handles Network Interruptions • Handles Low-bandwidth networks • Improve System Performance & Reliability • Reduce Network Traffic • Remove Firewall Issues • Connecting to Non-Windows Systems

  8. PC – 1 OPC Client COM run-time COM run-time OPC Client Security Provider Security Provider How Does OPC DA communicate between PC’s • An OPC Client connects to an OPC Server through COM • An OPC Client connecting to an OPC Server on a different machine connects through DCOM and must be authenticated. I want to connect to you Tell me your login name and password! My user name is “fred” and password is “*****” Let me check my Access Control List…. PC – 2 OPC Server Yes, you are on my list… I will grant you access! OPC Server

  9. OPC TunnelingWhy Tunnel with DataHub? • No DCOM! Or RPC – Easy to configure • Remove Firewall Issues – single port • Network Interruptions – more then DCOM • Heartbeat and reconnect settings • Low-bandwidth or Reduce Network Traffic • No polling • Single connection for multiple tunnels • Improve System Performance & Reliability • Mirrors data – both side share data • Clients connected to OPC DataHub always get an answer • Non-blocking calls

  10. OPC Tunneling Why Tunnel with DataHub? • Increase Data security (passwords & SSL) • Connecting to Non-Windows Systems • Multiple clients on same PC, • still one remote connection to remote OPC sources, managed by OPC DataHub • OPC DataHub tunnels DATA • Any data source – OPC DA, DDE, ODBC • Any data that DataHub can read.

  11. OPC Tunneling Why Tunnel with DataHub? • Other Tunnellers • Tunnel commands at the OPC protocol level and can only tunnel OPC Data! • Make connected clients wait on network timeouts • Multiple clients on same PC talking to remote OPC server = multiple connections

  12. Other Approaches • VPN • Does not solve • DCOM, Network stability, bandwidth and crossing domains • OPC XML/DA • Not secure, more over head, not for high speed, limited products, OPC UA • OPC UA • Requires all products to support it • DataHub will add this

  13. 3 Steps to Tunneling with OPC DataHub • Step 2: Connect Master to Slave • Step 1: Connect Master to OPC Server • Step 3: Connect OPC Client to Slave

  14. OPC Aggregation &Tunnelling • Live Demonstration Laptop PC Desktop PC

  15. Aggregation & TunnelingAdditional Application Examples Aggregating & Tunneling to MES/ERP Systems Aggregation Consolidates Plant Floor Data Tunneling gets it to the front office ODBC, API’s, DDE, Scripting, TCP/IP Available to tie in to MES/ERP

  16. Aggregation & TunnelingAdditional Application Examples Aggregating & Tunneling OPC, Linux, ODBC and Excel! Pull data from OPC Server Locally Tunneled data to and from remote Linux Server – or any OS ODBC Database connections to Database Server All data pulled together in DataHub, charted in Excel with drag+drop DatabaseServer OPC Server TCP/IPTunnel

  17. DataHub DataHub GEProficyiFix RSView DataHub TOP ServerInTouch to OPC Driver InTouchHMI Aggregation & TunnelingAdditional Application Examples Tunneling to Bring HMI/SCADA Data Where You Need It Aggregate data when needed Tunneling to get the data where you need it Web Interface Serves the data where & how you want it ODBC, API’s, DDE, Scripting, TCP/IP to do what you want! Factory Floor Front Office Standard TCP/IP Single Port Connections DataHub

  18. What Tools are Needed? • For all usage scenarios • No tag count limits • No limits on # of clients, # of servers used with a single DataHub • Aggregation on a Single PC – 1 DataHub License - $995 • Aggregation + Tunnelling Scenario – 2 DataHub licenses (one per PC) - $1990 • Demo site will pop-up after this presentation: • http://www.softwaretoolbox.com/opcdatahub/html/free_demo.shtml

  19. Contact Information & Other Learning Opportunities • Questions later? • krutherford@softwaretoolbox.com • cwinchester@softwaretoolbox.com • 888-665-3678 or 704-849-2773 • www.softwaretoolbox.com/opcdatahub • Other learning opportunities • www.softwaretoolbox.com/opcdatahub and click on Videos/Training • Visit www.softwaretoolbox.com/webinars

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