
B-63782EN/01 NC FUNCTIONS 11.MISCELLANEOUS FUNCTIONS
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Mxx
Myy
Next block
Code si
nal
Strobe si
nal MF
PMC side operation
Completion signal FIN
Fig. 11.4 (b) Timing chart of the usual system
A high-speed interface can also be used for multiple M commands
issued for one block. This interface provides separate completion
signals for each M code. They are called MFIN (the same name as for
the single M command per block function), MFIN2, MFIN3, MFIN4,
and MFIN5, respectively. The signal transfer sequence for multiple M
codes per block is the same as that for a single M code per block.
NOTE
1 Either the conventional system or the high-speed
system can be selected for communication of strobe
signal and completion signal (selected by parameter
No.2004#0(MHI)).
2 In the conventional system, only one completion
signal is available for all functions of M/S/T/B.
However, in the high- speed system, one completion
signal is available for each of M/S/T/B functions.
3 This function is not used for the FFIN and FIN signals
which are the completion signals for spindle stop
command signal SSP and reserve spindle rotation
command signal SSV for canned cycles. These
signals are transferred using the normal method.
4 This function is not used for the FIN signal which is
the completion signal for the external operation signal
EF sent by G81 to specify an external operation
command. These signals are transferred using the
normal method.