Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 733)

Program Interrupt
Chapter 29
29-3
The subprogram or paramacro program is assigned to a particular type of
interrupt by programming a P-word in the M block that enables the
interrupt (M96 in this manual). When selecting a program with a P-word,
only the numeric value of the program name is entered; the letter O is
omitted. For example, programming:
M96L0P11111;
would enable the program O11111 as a type 1 interrupt and allow it to be
executed when switch 0 sends a signal to PAL. If the program called with
the P-word does not exist, the control will generate an error when the
switch that activates the program is activated. The P-word is not
programmed in the disable M-code block (M97 in this manual).
Example 29.1
Enabling and Disabling the Interrupt Features
N1M96L0P11111; Enables program O11111 as a type 1 interrupt and
allows it to be executed when the interrupt
signal from switch 0 is received.
N2M96L1P12345; Enables program O12345 as a type 2 interrupt and
allows it to be executed when the interrupt
signal from switch 1 is received.
N3M96L3P11111; Enables program O11111 as a type 2 interrupt and
allows it to be executed when the interrupt
signal from switch 3 is received.
This is the
same program as selected for type 0 interrupts.
N4M97L3; Disables any interrupt program that is called by
switch 3.
Any signal to execute an interrupt
from switch 3 is ignored after this block is
executed unless reactivated with a M96L3 block.
N5M96L0P22222; Alters the program that is called for the
interrupt with switch 0.
The new program called
when the interrupt signal is received is O22222.
N6M97L0; Disables interrupt switch 0.
N7M97L1; Disables interrupt switch 1.
Important: All program interrupts that are enabled in a part program are
automatically disabled by the control when:
an end of program (M02 or M30) block is read
a new program is selected as active
a control reset is performed