SIMATIC IPC Flash Mass Storages

1. SIMATIC IPCFlash Mass Storages Technical Information 04/2012

2. SIMATIC IPC Flash Mass Storages SIMATIC IPC Flash Mass Storages • Overview • CompactFlash • Solid-State Drive • Diagnostics

3. Flash memory technology as mass storage Overview • Advantages of flash mass storage compared with hard disks • High MTBF / high degree of system availability no moving parts subject to wear • Extremely robust • against vibration/shock • due to a wider range of temperature • Less power consumption i.e. less power consumption and dissipation for the entire unit • No noise generation • Use • From a software point of view, it behaves like a standard hard disk i.e. fast accessing without additional drivers • The number of read cycles is nearly unlimited • The number of write cycles determines the lifetime • In spite of optimization (algorithms) the write cycles of flash-based mass-storages are limited due to the physical characteristics of the flash cells  The operating system and application must be evaluated regarding the number of write cycles CompactFlash Solid-State Drive Diagnostics

4. Intelligent data management of flash memory media Overview • Error management algorithms • bad block management, error code correction (ECC), management of spare blocks  Increased data security and reliability • "Wear Leveling" • distributes the write processes to all of the storage cells so that every storage cell is written to equally, i.e. this ensures that it is not always the same storage cells or blocks that are written to • To guarantee the overall performance, it is recommended that you do not fully utilize the memory area  Increase of the number of write/delete cycles of the flash mass storage • Write Endurance • plenty of data what can be written on the mass storage • CF: indicated in "Write / Erase cycles", i.e. in write cycles • SSD: indicated in"Terabyte Word", i.e. in written data • Power-Loss-Protection • finishing of the write cycle when power off doesn‘t damage the mass storage(user data could be lost) CompactFlash Solid-State Drive Diagnostics The number of write cycles of the mass storage far exceeds the number of write cycles of an individual flash storage cell thanks to the intelligent data management of the flash controller

5. Flash technologies: MLC vs. SLC Overview CompactFlash Solid-State Drive Diagnostics Today SLC technology fullfills the highest quality standard

6. Comparison of flash memory media used with SIMATIC IPC Overview CompactFlash Solid-State Drive Diagnostics o standard / + good / ++ very good / +++ excellent ▲ recommended► use depends on the complexity of the customer project▼combination typically not recommended 1) further differentiation: see capture "Solid-State Drive"

7. SIMATIC IPC Flash Mass Storages SIMATIC IPC Flash Mass Storages • Overview • CompactFlash • Solid-State Drive • Diagnostics

8. SIMATIC IPC CompactFlash Overview • Optimized properties for automation • Industrial quality level • Securing bootability ("Fixed Disc" mode) • Securing the real-time behavior, e.g. of WinAC RTX, RMOS • Wide temperature range Increased operational reliability due to increase of system reserves • Type-tested industrial properties • System-tested for SIMATIC IPC • Diagnostics capability Feature generally not offered by the competition • Long-term availability of the CF cards for SIMATIC IPC regardless of discontinuations or component changes on the market CompactFlash Solid-State Drive Diagnostics Securing the technical properties and the SIMATIC quality standard necessary for an automation solution

9. Technical features SIMATIC IPC CompactFlash Overview CompactFlash Solid-State Drive Diagnostics

10. SIMATIC IPC Flash Mass Storages SIMATIC IPC Flash Mass Storages • Overview • CompactFlash • Solid-State Drive • Diagnostics

11. Solid-State Drive (SSD) Solid-State Drives (SSD) represent a rugged alternative to conventional hard disks • Ruggedness • Significantly higher shock and vibration resistance • Greater allowable operating temperature range • Performance • high read/write performance (also compared to CompactFlash) • Two classes of SSD for industrial applications are offered, which considerably differ in the write endurance • in the present generation of the mass storages used in Simatic IPC the SSD differs in the flash technology (MLC, SLC) 2) • the selection depends on the user application • required capacity • what data quantity will change how often • required read-/write-performance  see also: "Comparison of flash memory media used with SIMATIC IPC" Overview CompactFlash Solid-State Drive Diagnostics • 1) Releases and boundary conditions for the respective SIMATIC IPC products: see respective service & support notices • 2) perhaps other differentiation criteria in the future The elimination of mechanical wearing parts (as found on hard disks), increases the lifespan and simultaneously increases the system availability and performance

12. Technical features of the Solid-State Drive for SIMATIC IPC Overview CompactFlash Solid-State Drive Diagnostics 1) size defined in the releases of the respective IPC2) MobileMark* 2007 Workload 3) according JESD218

13. SIMATIC IPC Flash Mass Storages SIMATIC IPC Flash Mass Storages • Overview • CompactFlash • Solid-State Drive • Diagnostics

14. Diagnostic functions for flash mass storage in SIMATIC IPC Overview • Permanent monitoring for early detection of impending defects • Monitoring of the diagnostic bit using diagnostic software • SIMATIC IPC DiagBase and • SIMATIC IPC DiagMonitor • Similar to the S.M.A.R.T. functionality for hard disks(Self-Monitoring, Analysis and Reporting Technology) • When the diagnostic bit is set, it is recommended that themass storage is replaced CompactFlash Solid-State Drive Diagnostics In this way, an unscheduled machine downtime can be prevented through preventive maintenance

15. Thank you for your attention! SIMATIC IPC Flash Mass Storages Peter Berger SIMATIC IPC I IA AS Gleiwitzer str. 555 90475 Nuernberg