Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 192)

Running a Program
Chapter 7
7-4
In single block mode, the control executes the part program block by
block. The control executes one block of commands in the part program
when in single block mode each time you press the
<CYCLE START> button.
Figure 7.1
Single Block
SINGLE
BLOCK CYCLE
START
When you press <CYCLE START> one
block of commands is executed
Grinding wheel
12007-I
To activate the single block function, press the <SINGLE BLOCK> button.
The light inside the button lights up when active.
ATTENTION: Single block execution is not possible during
reciprocation.
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 currently executing
block.
The <SINGLE BLOCK> button is a toggle switch. If you press it again while
the single block function is active, the control cancels the function and the
light inside the button turns off. The remaining program blocks can be
executed normally by pressing the
<CYCLE START> button.
7.1.4
Single Block