Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User 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)

TYPE

FORWRD

REVRSE

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)

TYPE

FORWRD

REVRSE

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