82
GA 09.035/6.02 - 07/2011 - © Oerlikon Leybold Vacuum
Computer interface
Note:
The relay status is a hexadecimal number. It may be combined by the
logical operator OR. Example: 24 = Switching functions relays 3 and 6
on.
6.3.35
TKB
Test keyboard. Test the keyboard.
S: TKB<CR>[<LF>]
R: <ACK><CR><LF>
S: <ENQ>
R: aaaa<CR><LF>
The control character <ENQ> starts the test. The Multi-Channel Controller
polls the keyboard and sends a message to the computer.
Note:
The keyboard status is a binary number. It may be combined by the log-
ical operator OR. Example: 0011 = DOWN and UP pressed at the same
time.
Parameters
Significance
a
Test status
0 = Off
1 = On
bb
Relay status
00 = All relays off
01 = Switching function 1 relay on
02 = Switching function 2 relay on
04 = Switching function 3 relay on
08 = Switching function 4 relay on
10 = Switching function 5 relay on
20 = Switching function 6 relay on
40 = Error signal relay on
7F = All relays on
Parameters
Significance
aaaa
Keyboard status
0000 = No button pressed
1000 = CH pressed
0100 = PARA pressed
0010 = DOWN pressed
0001 = UP pressed
