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QNX based DCS Unique Value Proposition

QNX based DCS Unique Value Proposition. Igor V. Lapko ( lapko@rts.ua). Which code is more reliable ?. Ask the question ! What is the code length ? How long/thoroughly it was tested ? Is it vulnerable from outside ?. Code A. Code B. Traditional OS Architecture.

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QNX based DCS Unique Value Proposition

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  1. QNX based DCSUnique Value Proposition Igor V. Lapko (lapko@rts.ua)

  2. Which code is more reliable? • Ask the question ! • What is the code length? • How long/thoroughly it was tested? • Is it vulnerable from outside? CodeA Code B

  3. Traditional OS Architecture Protection among kernel components is absent !

  4. QNX OS Architecture Tiny microkernel, refined for 20+ years Hardware protected address spaces! QNX – it is 99.999% of availability (or 5 minutes of downtime annually !)

  5. Real Time All delays are specified and are in hundreds of nanoseconds range

  6. Why QNX? • QNX was intentionally developed for real time and mission critical applications rather than it was adopted for it • Advanced and reliable scheduling. Bullet proof preemptive multitasking. Priority inheriting . All abovementioned enables the coexistence of control functions with HMI and DBMS functions at the same CPU core. • True microkernel. PerfectMMU. • Ability to restart every software component without system rebooting enables software watchdog functions. • Fault protected file system. Multiple redundant network connections. • POSIX-compatible. Very predictable, reliable and robust. No viruses.

  7. S3™ Software Architecture QNX based DCS, generalized node architecture Multimedia HMI OPC Server WEB Server SQL Database (MySQL,Empress) IEC-61131 Engine(S3) QNX microkernel Distributed I/O Drivers Local I/O Drivers Gateway

  8. HMI OPC SQL QNX SL WEB I/O I/O I/O Software Architecture PAC features SCADA Workstation • Extended programming capabilities • Extended communication options • Extended database options • Extended HMI Operator Panel PAC

  9. Communications • Availability of PAC’s data in any networks • Fieldbus adapters (PROFIBUS DP/FMS/FDL, CAN, LON, ASI, INTERBUS) from many vendors (Allen Bradley, Comsy, Echelon, Engenuity Systems, Inova Computers, PEP, Phoenix Contact, Siemens, Softing, SST, TMG i-tec, VISTA Electronics , etc) • Full TCP/IP support and concomitant protocols (FTP, HTTP, ODBC, SNMP и т. п.) • Communication with MS Windows SCADAs viaOPC

  10. DBMS • It is possible to store data directly in PAC now • ERP/MES integration via ODBC/JDBC and replication; • Popular DBMS support (MySQL, PostgreSQL Empress)

  11. HMI and WEB HMI • PAC itself can provide full featured HMI now. • It can realize complex graphical objects including animation and Flash objects • Even Apache server runs at PAC providing full featured WEB HMI

  12. S3 Software Architecture DCS architecture Redundant fault tolerant network S3™ S3™ S3™ Watch dog HMI OPC SQL QNX QNX QNX SL WEB I/O I/O I/O

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