CNC 8055 / CNC 8055i
Page 33 of 106
NEW FEATURES
(SOFT M: 9.0X)
8 Tool change
8.1 Stop block preparation when executing a new T
When having a subroutine associated with the "T" function, the tool
change is carried out as follows:
1. It executes the associated subroutine.
2. It executes the "T" function. Function M06 is not used.
3. The CNC assumes the change.
Block preparation is not interrupted during the tool change. If a
programming error is detected during block preparation, the execution
of the "T" function might not be completed. This means that the tool
change may have concluded correctly but the requested tool has not
been assumed by the CNC.
To avoid this situation, it is possible to stop block preparation during
the execution of the "T" function. bit 1 of g.m.p. "TOOLTYPE"
determines whether to interrupt block preparation or not.
TOOLTYPE (P167) This parameter has 16 bits counted from left to right. Each bit has a
function or work mode associated with it. By default, all bits are set to
"0". Setting a bit to "1" activates the corresponding function.
8.2 New treatment of CYCLE STOP during the execution of a T
When the tool change subroutine has been defined so it is executed
as a single block and the stop signal has been disabled, the following
occurs: When pressing [CYCLE STOP] while the subroutine is being
executed, the CNC stores it and it stops right when the stop signal is
enabled. In this situation, it does not finish the subroutine and it does
not consider the T as done, which could cause irregularities at the tool
magazine.
From this version on, a new behavior may be defined. The stop signal
is always executed after the T has been fully executed regardless of
whether the stop signal has been disabled or not in the subroutine.
It should be borne in mind that the DSTOP instruction disables both
the [CYCLE STOP] key and the signal coming from the PLC. Both may
be re-enabled with the ESTOP instruction.
Bit 3 of g.m.p. "TOOLTYPE" determines when not to ignore the stop
signal.
0 Block preparation is not interrupted.
1 Block preparation is interrupted.
Bit Meaning
1 Stop block preparation when executing a new "T".
2 Round corner when changing the tool offset.
3 The STOP signal is always executed after the "T" function.
4-16 Not being used.
0 When there is a subroutine associated with the "T" function, the
stop signal is considered (not ignored) in the following cases.
• If the stop signal has been disabled, when it is re-enabled.
• If the stop signal has not been disabled, when pressing the
[CYCLE STOP] key.
1 The stop is always executed after the execution of the T.
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