Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 720)

Section 15A
Troubleshooting The Control
15A-10
The {SYMBOL COMENT} softkey is only displayed if your system has
had the PAL logic program downloaded with symbol comments. This
softkey allows you to view or hide the comments that have been assigned
to each logic symbol by the your system integrator. When symbol
comments are displayed, each branch of a logic rung occupies nine lines on
the display.
When Symbol comments are displayed, only two branches, of the possible
seven, can be seen on the screen at one time. Use the {ADJUST VIEW}
softkey to see the remianing branches ( see the next section )
(softkey level4)
SEARCH
TYPE
FORWRD
SEARCH
REVRSE
SEARCH
ADJUST
VIEW
SYMBOL
COMENT
One PAL rung can contain up to seven branches, each branch using three
lines of the display. This can result in a PAL rung that is three lines more
than the 19--line display of the 9/Series monitor will allow. Use the
{ADJUST VIEW} softkey to move the display up or down to allow you to
quickly show the three lines that are not displayed at the end of a seven
branch rung. The display toggles between showing the three lower and
three upper lines of the displayed ladder rung each time the {ADJUST
VIEW} softkey is pressed.
If you are displaying the symbol comments (see previous section) the
{ADJUST VIEW} softkey will move the display down a up to three times
to allow you to view all seven branches of every rung. Pushing this softkey
when you are displaying the last branch of the rung will return the display
to the first branch of the rung.
(softkey level4)
SEARCH
TYPE
FORWRD
SEARCH
REVRSE
SEARCH
ADJUST
VIEW
SYMBOL
COMENT
Rungs with timers can be configured to display either their preset values,
or their current value in PAL. You can not display both the preset, and the
current value at the same time. When you choose to display current value
or preset for a timer, you are choosing the display format of all timer rungs.
All timer rungs either display their preset, or their current value.
Display Time
Pressing the {DISPLY TIME} softkey will display the current value of the
timer as it executes in PAL. The timers value is shown just below the
timer element and changes as the timer is running.
15A.2.3
Displaying Symbol
Comments
15A.2.4
Adjusting View
15A.2.5
Timer Displays