Mitsubishi Electric MELDAS C6 Interface Manual page 293

B con-
Signal name
tact
—
KEY OUT 1
[Function]
When this signal is used, key data can be entered on the user PLC side instead of the CNC
keyboard.
[Operation]
Key data processing
(CNC)
(1) Key data is set to file registers R8 and R112 at the head of user PLC main program.
(2) The user PLC refers to the key data, and performs required processing.
(3) The user PLC sets the key data which meets the keyboard currently in use to register R112.
(4) The controller processes the effective key data after the main program of user PLC has been
processed, referring to the settings of R8 and R112.
(Note 1) For details of key data and processing timing, refer to the Instruction Manual for "PLC
programming" ("key operation using user PLC").
[Related signals]
(1) KEY IN 1 (R8)
6. EXPLANATION OF INTERFACE SIGNALS
6.4 PLC Output Signals (Data Type: R***)
Signal
abbreviation
1
4
6-4-3
1st system 2nd system
R112 —
KEY IN 1
R8
2
For monitor
3
R112
KEY OUT 1
3rd system
—
User
PLC