Minebea Intec PR5900 - Display and Operation Using VNC Client; Data Security and Data Storage; Power Failure; Warm Start

2.1.4 Display and operation using VNC client
The display and operating elements are described in the following chapters:
- Overview of front of device, see Chapter 2.1.1.
- User interface of TFT screen, see Chapter 2.1.2.1.
- Operation using the front-panel keys, see Chapter 2.1.3.1.
Setting up the VNC client, see Chapter 2.9.5.
2.2 Data security and data storage
The calibration data and parameters of the internal weighing electronics system are saved
to the EAROM (Electrically Alterable ROM) on the weighing electronics board. Additional
write protection is provided for calibration data and parameters (see Chapter 2.7.2).
The event logger is saved to the SPI ash (Serial Peripheral Interface ash) memory.
The FlashPROM contains:
- BIOS
- Firmware
- Application Program
- Alibi memory
- XML conguration les (for user management, system setup, calibration and
application data)
The backups are stored on the SD card (Secure Digital card) (see also PR 5900 installation
manual under [Hardware construction]- [Main board]- [SD card slot] ).
2.2.1 Power failure
The entire content of the working memory is stored to a NAND ash memory and remains
there permanently when the power is interrupted or the device is disconnected from the
power.
The SD card and the USB stick are buered by a battery.
If a HUB (splitter) is inserted into the USB slot and turned o, the connection between the
USB stick and battery is broken.
2.2.2 Warm start
When power is restored, all data are reloaded from the NAND ash memory to the
working memory and the device is restored to the operating status before the
interruption. Filling programs are stopped/started depending on user settings.
2.2.3 Cold start
A cold start is performed if the device nds no saved data with which the last operating
state can be restored.
A cold start can have various causes:
- The battery has not been charged properly or is faulty, and it was not possible to save
all the data when the power was disconnected.
- The device was restarted using the STOP+EXIT keys, see Chapter 2.2.3.1.
- The reset key was pressed, see Chapter 2.2.3.2
Process Controller Maxxis 5 PR 5900 2 Commissioning
Minebea Intec EN-18