CNC 8035 - Programming manual - Fagor Automation

ADDITIONAL PREPARATORY
FUNCTIONS
7.1 Interruption of block preparation (G04)
7
The CNC reads up to 20 blocks ahead of the one it is executing, with the aim of calculating
beforehand the path to be followed.
Each block is evaluated (in its absence) at the time it is read, but if you wish to evaluate it at the
time of execution of the block you use function G04.
This function holds up the preparation of blocks and waits for the block in question to be executed
in order to start the preparation of blocks once more.
A case in point is the evaluation of the "status of block-skip inputs" which is defined in the block
header.
Example:
.
.
G04 ; Interrupts block preparation
/1 G01 X10 Z20 ; block-skip condition “/1”
.
.
Function G04 is not modal, so it should be programmed whenever you wish to interrupt block
preparation.
It should be programmed on its own and in the block previous to the one in which the evaluation
in execution is required. Function G04 can be programmed as G4.
Every time G04 is programmed, active radius and length compensation are cancelled.
For this reason, care needs to be taken when using this function, because if it is introduced between
machining blocks which work with compensation, unwanted profiles may be produced.
CNC 8035
·T· MODEL
(SOFT V16.3X)
·113·