Bosch Rexroth IndraControl VDP 16.1, Project Planning Manual

Page: 52 / 90

6-8
Display and Operating Components VDP 16.1, VDP 40.1 and VDP 60.1
DOK-SUPPL*-VDP16/40/60-PR02-EN-P
The following key codes are output:
Key combinations of the keys
VDP 16.1BK and VDP 40.1BI Corresponding key of a standard
keyboard
M-Keys, left
to
L1
L8
CTRL + ALT + SHIFT LINKS + X
ASCII-Block X: 1 ... 8 (nicht NUM-Block)
M-Keys, right
to
R1
R8
CTRL + ALT + SHIFT X
ASCII-Block X: 1 ... 8 (nicht NUM-Block)
Fig. 6-9: Key combinations of the keys VDP 16.1BK and VDP 40.1BI
M-Keys may not be subject to a repeating operation (Key Controller ->
Conti. Jogging of axes].
The states of the M-Keys can be transferred to a soft control via the serial
interface COM3. The soft control has to send a request telegram and
receives as response a keyboard telegram containing all key states.
The request telegram has to consist of one byte with value 0xB2.
The keyboard telegram is send not later than 10 ms after the reception of
the request telegram.
Pressed M-Keys have the value "0"; if the keys
are not pressed, they have the value "1". The keyboard telegram has the
following structure:
Byte 3 Byte 2 Byte 1 Byte 0
CRC Status M-Keys right
(Bit 0 = R1 to
Bit 7 = R8)
M-Keys left
(Bit 0 = L1 to
Bit 7 = L8)
Fig. 6-10: Keyboard telegram
Requesting M-Keys via PS/2
Request M-Keys via COM3