The document discusses wireless data communications for SCADA systems. It outlines key benefits like advanced features, data reliability without errors, and data security immune to intrusion. It also discusses communication network options, versatile interfaces, communication-oriented RTUs, store-and-forward links, backup links for reliability, wide area data networks, reporting in wireless SCADA systems, and combined PLC and I/O with RTUs. Security trends and a combined set of solutions to address physical, firewall, and communications security are also covered.

1. Wireless Data Communications for SCADA Systems Presented by: Dan Ehrenreich Motorola Inc . BCWWA Conference Whistler, April 2008

2. Advanced SCADA Features Networking (Communication Anywhere to Anywhere) Data Reliability (No Communication Errors) Data Security (Immune to Intrusion) Communication Network

5. A Communication Oriented RTU 2/3 RTU Local Control of Remote Sites Reporting By Event Node Linking two Media Protocol Converter for PLC Links Store and Forward Repeater F1-F1 Time Synchronization

6. A Communication Oriented RTU 3/3 Polling via radio Report by Event PLC RTU Local Process Network Comm. ++ +++ - +

7. “Store and Forward” Links S&F FIU All radio links may use the same frequency ! S&F Repeater RTU RTU RTU SCADA HMI

8. Backup Links Enhance Reliability IP Gateway Damaged Wire-line Backup Radio RF SCADA Control Center Line RF RTU Radio RTU RTU RTU RF

9. Wide Area SCADA-Data Network ToolBox Primary Water SCADA Secondary MCC Ethernet Ethernet IP Gateway Line Based network S&F Repeater RTU and Comm. Node RTU for Pumping Station RTU for Reservoir IP S&F Repeater

10. Complex SCADA System Main ToolBox Primary MCC Secondary MCC Remote Ethernet Local Ethernet IP Gateway Line Based IP RTU & Data Comm. Node Remote ToolBox Wireline Comm. RTU & Data Comm. S&F RTU & Data Comm. Node (SLIP) Wireline Comm. RTU & Data Comm. Node RTU & Data Comm. Node Prime Link Backup Link Prime Link Prime Link Printer Backup Link TS

12. Multiple Address System Network Site 2 SCADA Site 1 Remote Programming F2 F1 F2 F1 Using the 7-Layer protocol sites may be configured for single frequency F 3 F3 F3 F3 F3 RTU RTU RTU RTU F1 F2

13. Wireless IP Connection with SCADA Master Control Center Programming ToolBox IP Network Ethernet Wireless IP Infrastructure IP Gateway IP Con. IP Con. RTU IP Con. IP Con. Programming STS IP Con. RTU 900 MHz – 5.7 GHz RTU

14. Wireless GSM/GPRS Network Site 4 Site 1 Site 2 Site 3 SCADA Micro Wave Back Bone Voice Voice Voice RTU RTU RTU RTU

15. Combined PLC and I/Os with RTU Wireless Network Customer Site RTU With radio STS ToolBox I/O Control Installed PLC or IED I/O Control PLC or IED with Native protocol

16. SCADA Security Incident Trends Source: Eric Byres * Projected 20* 22* Something Big Changes Here

19. Cost Saving Analysis 2/2