Display and Control Elements
7–12
1070 073 825-103 (02.04) GB
7.5
Keyboard Controller
For many industrial applications it is important to determine the key status
(pressed / not pressed, key LED ON / OFF) of the front panel keyboard.
To this end, a keyboard controller scans the front panel keyboard or an exter-
nal keyboard, and transfers the key codes, switch settings, etc. to various
interfaces.
7.5.1
Scanning Front Panel Keyboard
The current status of the front panel keyboard is transferred:
D
to the PC via MF2
D
to X28, via an internal connection of 24Vout outputs
D
to the PROFIBUS Slave accounts (not used)
The codes of the application program can be further processed over the X28
connection.
Transferring Key Codes to the PC via MF2
The MF2 codes are available in the standard design in the first input byte and
are passed on from the controller to the PC (refer to the assignment table on
page 7–14).
Transferring Key Codes to the 24 V out outputs
.
Bit 1 corresponds to the low-order bit.
Pressed navigation buttons and cursor/mouse keys are bit-coded by the
controller and directly applied to the 24 Vout output.
D
Bit1: CRTL-L (corresponds to S10)
D
Bit2: CRTL-R (corresponds to S13)
D
Bit3: CRTL-U,CRTL-D (corresponds to S09 or S11 or
S12 or S14)
D
Bit4: Cursor/Mouse up or down (corresponds to S46 or S60)
Navigation keys
Left handle bar
Navigation keys
Right handle bar
S09
S10
S11
S12
S13
S14
S46
S66
Cursor keys
Please also refer to page 7–14 ”Code Assignment Table”..
Содержание CPS21_3
Страница 1: ...Antriebs und Steuerungstechnik CPS21_3 CPS21_4 Interface Conditions Industrial PC Edition 103 ...
Страница 90: ...Display and Control Elements 7 18 1070 073 825 103 02 04 GB Notes ...
Страница 100: ...Maintenance and Replacements 8 10 1070 073 825 103 02 04 GB Notes ...
Страница 102: ...Spare Parts 9 2 1070 073 825 103 02 04 GB Notes ...
Страница 106: ...Annex A 4 1070 073 825 103 02 04 GB ...