Signals To Operator Panel (Db19) - Siemens SINUMERIK 840D sl Function Manual

Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
DB10
DBX109.7 NCK battery alarm
Signal state 0 The battery voltage is above the lower limit value (normal condition).
Special cases, er‐ The NCK batteries should only be replaced while the NC is switched on to avoid data loss because
rors, ... of no memory backup.
Additional references ● Diagnostics Manual
● Equipment Manual NCU
19.1.4

Signals to Operator Panel (DB19)

DB19
DBX0.0 Screen bright
Edge evaluation: No
Signal state 1 or edge The screen blanking is disabled.
change 0 → 1
Signal state 0 or edge The screen blanking remains in effect.
change 1 → 0
Corresponding to ... DB19 DBX0.1 (darken screen)
DB19
DBX0.1 Darken screen
Edge evaluation: No
Signal state 1 or edge The screen is darkened by the PLC user program.
change 0 → 1 The automatic screen brightening/darkening is therefore ineffective:
i.e. the screen does not brighten up automatically on actuating the keyboard.
Signal state 0 or edge The screen is controlled by the PLC user program "bright".
change 1 → 0 In this signal state, the screen brightening/darkening setting can be derived by the control via the
keyboard automatically.
The screen is darkened if no key is pressed for a period defined via the following machine data on
the keyboard:
MD9006 $MM_DISPLAY_BLACK_TIME (time to darken the screen)
The screen is brightened the next time a key on the operator panel front is pressed.
Application exam‐ Screen saver
ple(s)
Special cases, Notice:
errors, ....
The keyboard of the operator panel front continues to be effective if the interface signal:
DB19 DBX0.1 (darken screen) = 1
We therefore recommend that this is disabled using the interface signal:
DB19 DBX0.2 (key disable)
Corresponding to ... DB19 DBX0.2 (key disable)
MD9006 $MM_DISPLAY_BLACK_TIME (time to darken the screen)
1556
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions