Darken Screen - Siemens SINUMERIK 840D sl Commissioning Manual

General settings

6.6 Darken screen

MD9110_$MM_ACESS_HMI_EXIT
= 1
6.6 Darken screen
Defining the time until the screen is darkened
The duration (in minutes), after which the screen is automatically darkened if no keyboard
key is pressed, can be specified using the display machine data
MD9006 $MM_DISPLAY_SWITCH_OFF_INTERVAL.
NOTICE
Influence of screen darkening on the service life
To extend its service life, the recommended duration for darkening a screen is 60 minutes.
If you significantly reduce the duration, i.e. the screen is switched dark too often, this tends
to shorten the screen service life.
Interface signal
The screen is darkened by setting an interface signal.
DB 19 byte
DBB0
The following applies when actively darkening the screen using the interface signal:
● It is no longer possible to light up the screen again from the keyboard.
● The first keystroke on the operator panel already triggers an operator action.
Note
In order to prevent accidental operator actions via the interface signal when the screen is
darkened, we recommend disabling the keyboard at the same time.
6.7 Inserting a user-specific run up screen
OEM-specific run up screen
You can replace the Siemens run up screen by your own run up screen.
56
Access level 1 (manufacturer), default value
Signals to the operator panel front (PLC → HMI)
Bit 1
Darken screen
Access level of the "EXIT" softkey
Bit 0
Brighten screen
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
SINUMERIK Operate (IM9)