
B–62073E–1/042. INTERFACE BETWEEN CNC AND PMC–NA OR NB
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2.3.64 Key input
Instead of pressing keys on the MDI/CRT panel to turn on or off input signals from the PMC to the NC keys on
the machine operator’s panel may be used. This is known as key input. For example, the following application
is possible: After the tool is moved to an arbitrary machining position, the position can be stored as a program
command using the playback function (option). Generally in such case, you must enter X, Y, Z, INSERT, etc.
However, pressing only one key on the machine operator’s panel can substitute for entering the keys on the
MDI/CRT panel. That is, when the switch is pressed, the PMC turns on or off key input signals for X, Y, Z, and
INSERT, giving the same result as when the keys are pressed.
The signal address tables for key inputs are shown in subsequent pages. The addresses for signals for key
inputs depend on the type of MDI/CRT panel used. The names of signals are the same as the names of keys.
The keys which are effective when the shift key is pressed are also shown. The signals corresponding to the
soft keys are as follows:
(i) 9” MDI/CRT
FUNM SK 1 OPENSK 2 SK 3 SK 4 SK 5
CRT
(ii) 14” MDI/CRT
FUNM
SK 1 SK 2 SK 3 SK 4 SK 5 SK 6 SK 7 SK 8 SK 9 SK 10 OPEN
CRT