Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 205)

Running a Program
Chapter 7
7-17
Graphics are available on the active program graphics screen, see page
8-24 for details.
All of the above modes of execution begin program execution when you
press the
<CYCLE START> button.
If you see this to the left of the block: It means that the control:
* is executing a part program block
@ has completed the execution of a block
The @ symbol is usually only seen in single block mode or in cases where
it is necessary to indicate what block automatic execution begins after.
You can interrupt axis inhibit, dry run, and automatic operation by using
any of the operations listed below. You can resume execution at the
interrupted location by pressing the
<CYCLE START> button.
(1) Pressing
<CYCLE STOP>
When you press the <CYCLE STOP> button, motion of the grinding wheel
decelerates and stops, and the control stops automatic operation. If you
press the
<CYCLE STOP> button during a dwell, the control interrupts the
dwell and stores any remaining time/revolutions for the dwell for later
execution.
ATTENTION: Once axis reciprocation begins, it continues
through program block execution until stopped by a G80, an
end of program (M02, M30, M99), a change to manual mode or
an emergency stop. This means pressing
<CYCLE STOP> does
not necessarily stop the reciprocating axis.
(2) Execution of an M00 or M01 in a Part Program
M00 ---- the control stops automatic operation after it executes the
remaining commands in the M00 block.
M01 ---- if the OPTIONAL STOP condition is set to ON, the control stops
automatic operation after it executes the remaining commands in the M01
block. If the OPTIONAL STOP condition is set to OFF, the M01 is
ignored and the control continues executing the part program as normal.
The optional stop condition may be turned off or on using the Front Panel
feature, or through a switch installed by your system installer.