Storage ElementsΒΆ
Lithium Battery
AC500 Processor Modules are supplied without a Lithium battery. It therefore must be ordered separately. The TA541 Lithium Battery is used to save SRAM contents of Processor Modules (PM595-xxxx-F only) and back-up the real-time clock in case of power failures. Although the Processor Modules can work without a battery, its use is still recommended in order to avoid process data being lost in case of power failures (PM595-xxxx-F only).
The Processor Module monitors the battery status. If the Processor Module signals a low battery state (via diagnostic system and LED), the battery has to be replaced immediately.
The technical data, handling instructions and the insertion/replacement of the battery is described in detail in chapter TA541 Lithium Battery TA541 - Lithium Battery.
Note
The Processor Module PM595-4ETH-M-XC is maintenance-free. The Lithium Battery TA541 in this Processor Module type is used only for back-up the Real-time clock (RTC) in case of no power supply. If the RTC is not used, there is no need to install a TA541 Lithium Battery.
SD Memory Card
AC500 Processor Modules are supplied without a SD Memory Card. It therefore must be ordered separately. The SD Memory Card can be used
- to read and write user files
- perform firmware updates for AC500 Processor Modules, display and connected Communication Modules
AC500 Processor Modules can be operated with and without SD Memory Cards. The Processor Module uses a standard file system. This allows standard card readers to read and write the MC502 SD Memory Cards.
Note
Only genuine MC502 SD Memory Card is supported by PM595 Processor Modules.
The technical data, handling instructions and the insertion/replacement of the SD Memory Card is described in detail in chapter SD Memory Card MC502 MC502 - SD Memory Card.