Functions; Configuring Caps Lock; Activating Screen Darkening - Siemens SINUMERIK 840D sl Commissioning Manual

Functions

3.1

Configuring Caps Lock

The CAPSLOCK function ensures that text entered via an external keyboard is always
entered in upper case and not in lower case.
The key behavior is set using the display machine data MD9009 $MM_KEYBOARD_STATE:
● 0: CAPSLOCK off
● 1: Setting not relevant!
● 2: CAPSLOCK on (default setting)
If the display machine data is set to "CAPSLOCK" you can switch between upper and lower
case with key combination "Ctrl" and the Shift key.
If the machine data is changed, the system must be rebooted.
3.2

Activating screen darkening

If a screen with high contrast is displayed unchanged for longer than an hour, the screen
must be switched dark (screensaver) in order to protect the TFT display against so-called
"freezing" of the last displayed screen.
Activation via PLC
You can activate the screensaver via the PLC using DB19 DBX0.1. The PLC has priority
over the entry in the display machine data.
References: Function Manual Basic Functions, Chapter: Various Interface Signals
Activating via the machine data
The duration (max. 60 minutes), after which the screen is automatically darkened if no key is
pressed on the keyboard, can be specified using the display machine data
MD9006 $MM_DISPLAY_BLACK_TIME.
In this display machine data, the "Screensaver" function can be started with the following
entry:
1: < time in minutes, e.g. 1 >
60: < time in minutes, e.g., 60 >
0: Deactivating the function (standard setting)
Commissioning HMI-Embedded (IM2)
Commissioning Manual, 01/2008, 6FC5397-8CP10-1BA0
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