Rockwell Automation 2711P Software Development Kit User Manual - Manual (Page 44)

Publication 2711P-UM005A-EN-P - March 2007
44 PanelView Plus CE-Specific Extensions to the WinCE API
• RM_PARAMETER_BACKLIGHT_STATUS
This parameter permits an application to monitor the status of
the display backlight. When the value is 0, indicating no
current flow, the application must check the brightness
setting. If LCD_BRIGHTNESS is non-zero, then the display is
ON and failed.
• RM_PARAMETER_ENABLE_BBC_EBOOT
• RM_PARAMETER_ENABLE_EBC_EBOOT
These parameters permit an application to disable or enable
E-Boots at startup. The parameters are maintained in CMOS to
permit exchanges between the OS and non-OS startup code.
• RM_PARAMETER_DISPLAY_ON_TIME
This parameter reads and writes the display on time. The
resolution is 30 minutes and the value is stored in the bezel
EEPROM.
• RM_PARAMETER_TERMINAL_ON_TIME
This parameter reads and writes the terminal on time. The
resolution is 30 minutes and the value is stored in the ATMEL
EEPROM.
• RM_PARAMETER_ CIP_SERIAL_NUMBER
This parameter reads the CIP Serial Number. Each vendor is
responsible for guaranteeing the uniqueness of the serial
number across all of its devices. The value is stored in the
MAC EEPROM and is written via the JTAG interface during
Manufacturing.
• RM_PARAMETER_PERSISTENT_REGISTRY_PRESENT
An application can delete the persistent registry by setting this
parameter to FALSE. The absence of a persistent registry
restores the system to its original state on the next boot.
Applications can poll this parameter to determine if a
persistent registry exists. When TRUE, indicates that a
persistent WinCE registry exists in the binary partition of the
Compact Flash.
• RM_PARAMETER_FACTORY_DEFAULTS
This parameter reads the state of the “default” or “safe mode”
switch. TRUE is returned if the switch was pressed and the
system was started in the “default” or “safe” state.