FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
B–62764EN/01
234
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.
Concerning this operation, refer to the manual supplied by the machine
tool builder.
G81 IP_ ; ( IP_ Axis move command )
IPIP
Every time positioning for the IP_ move command is completed, the CNC
sends a external operation function signal to the machine. An external
operation signal is output for each positioning operation until canceled by
G80 or a group 01 G code.
No external operation signals are output during execution of a block that
contains neither X nor Y.
G81 can also be used for a drilling canned cycle (II–14.1.4). Whether G81
is to be used for an external motion function or for a drilling canned cycle
is psecified with EXC, bit 1 of parameter No.5101.
14.8
EXTERNAL MOTION
FUNCTION
(G81)
Format
Explanations
Restrictions
D A block without X or Y
axis
D Relationship with canned
cycle G81

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