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

Page 756

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Section 15A

Troubleshooting The Control

15A-46

Figure 15A.20

Data Scope Monitor for Communication Diagnostics

FREEZE

UN

FREEZE

CLEAR

Default AMP Loaded

E-Stop

Transmit

Serial Port: B

Data transmitted appears

in standard video.

Data received appears

in reversed video.

This is a 80-column screen.

Receive

Important: The keyboard is inactive during a PAL download; therefore,

you cannot stop or freeze data on the screen while downloading PAL.

Communication data is shown in hexadecimal form with two characters

used for each communication byte. Data is continually overwritten in the

display area. The position on the screen where the next data byte will be

written is indicated by a blinking, block cursor.

You have these softkey choices:

FREEZE -- only the data scope display is frozen; no interruption of
communication occurs. This means that while the display is in “freeze,”

communication data is lost.

UNFREEZE -- begins display of real time communication data from the
current cursor position.

CLEAR -- erases the displayed data and positions the cursor to the upper
left of the display area; no data is lost.

END OF SECTION

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