Key Matrix Of The Keyboard Units - HEIDENHAIN iTNC 530 Service Manual

22.8 Key Matrix of the Keyboard Units

BF 120
X1 pin
X2 pin
b
X1:
X2:
SK =
22 – 382
Note
The keys pressed are also recorded in the log. The SK1 key is entered as soft key 0, the SK2
key as soft key 1 and so on.
The soft keys are numbered serially from left to right.
a
9
a
13
key RL12
X
SK1
SK2
X
SK3
SK4
SK5
SK6
X
SK7
SK8
a. Connector on the keyboard unit
b. Key on visual display unit
Connection for ribbon cable display unit => keyboard unit (plug-type connector)
Connection for cable keyboard unit => MC (D-Sub 37-pin)
Soft key (SK1..SK8 from left to right)
8 7 6
14 15 16
RL13 RL14 RL15
X
X
X
X
X
X
X
X
X
1 2 3
20 21 22
SL0 SL1 SL2
X
X
X
X
X
X
X
X
X
X
HEIDENHAIN Service Manual iTNC 530
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23
SL3
X
X