
11.PROGRAM COMMAND B-63783EN-1/01
- 1200 -
11.7 EXTERNAL MOTION FUNCTION
General
Upon completion of positioning in each block in the program, an
external operation function signal can be output to allow the machine to
perform specific operation.
G81 IP ; (The IP_ is axis move command )
Every time positioning for the IP_ move command is completed, the
CNC sends an external operation signal to the machine. An external
operation signal is output for each positioning operation until canceled
by G80 or a group 01 G code.
- Basic procedure
1. Once positioning for a move command has been completed, the
CNC sets the external operation signal EF to 1.
2. When the EF signal is set to 1, the PMC executes drilling or
another operation. Once the operation has been completed, the
PMC sets completion signal FIN to 1.
3. The CNC resets the EF signal to 0 upon the elapse of the time
(TFIN) specified in parameter No. 3011 after the FIN signal is set
to 1.
4. When the EF signal is set to 0, the PMC resets the FIN signal to 0.
5. The CNC starts executing the next block.
The timing diagram is shown below:
G81 command
Next block
Positioning EF
Machine operation FIN
TFIN
Signal
External Operation Signal EF<F008#4>
[Classification] Output signal
[Function] Reports that the positioning of G81 has been completed in the external
motion function, and that a special external operation is required.
[Output condition] For details of the output condition and procedure, see the "basic
procedure", described previously.