Device variables

Device settings and operating status information.

Variable Description Data type

Available System Memory

Free available RAM memory in bytes.

uint64

read only

Backlight Time

Activation time in hours of the display backlight since production of the device.

unsignedInt

read only

Display Brightness

Returns and adjusts brightness level.

Even when set to 0, the backlight is still on and the Backlight Time counter increases.

Range: 0–255

int

External Timeout

Non-operational time after which the display backlight is automatically turned off. The backlight is automatically turned on when the user touches the screen.

-1 =	Switch off backlight and disable touch (switch display off). Backlight Time counter is stopped. requires BSP v1.0.324 or higher.
-2 =	Switch off backlight but not disable touch. If touch is pressed, event is not passed to applications but screen saver exit and backlight return on. Requires BSP v1.0.324 or higher.
0 =	Switch backlight on (switch display on)
1..n =	Timeout, in seconds, for switch off backlight (screen saver timer)

The timeout value is rounded to multiples of one minute (60, 120, 180, etc,).

Find the platform of your device at "HMI devices capabilities"

int

Flash Free Space

Free space left in internal Flash memory.

uint64

read only

Manufacturer Code

Internal code that identify the HMI type

unsignedInt

read only

System Font List

List of system fonts

string

read only

System Mode

Runtime operation status.

1 = booting

2 = configuration mode

3 = operating mode

4 = restart

5 = shutdown

int

System UpTime

Time the system has been powered since production of the unit (hours).

unsignedInt

read only