Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 180)

Running a Program
Chapter 7
7-4
In single block mode, the control executes the part program block by
block. Each time you press the
<CYCLE START>
button, the control
executes one block of commands in the part program when in single block
mode.
Figure 7.1
Single Block
SINGLE
BLOCK
CYCLE
START
Cutting tool
When <CYCLE START> is pressed, one
block of commands is executed
To activate the single block function, press the
<SINGLE BLOCK>
button.
The light inside the button lights up when active.
If you press the
<SINGLE BLOCK>
button while the control is running a part
program in the automatic or MDI mode, the control activates the single
block function after it completes the commands in the block that is
currently being executed.
The <SINGLE BLOCK> button is a toggle switch. If you press it again while
the single block function is active, the function is canceled and the light
inside the button turns off. You can execute the remaining program blocks
normally by pressing the
<CYCLE START>
button.
7.1.4
Single Block