15a.4.7 hpg diagnostics – Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual

Page 737

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Section 15A

Troubleshooting the Control

15A-27

If a Hand Pulse Generator (HPG) device is selected on the Ring I/O screen

and the {DISPLY} softkey is pressed, the HPG Diagnostics screen appears.

Figure 15A.10 is an example of this screen.

Figure 15A.10

HPG Diagnostics Screen

HPG

SETUP MODE

DEVICE NO.

NUMBER

0

011011

1

111111

2

000000

The device numbers of all HPG devices that are on the I/O Ring will

appear under the “HPG” heading. These may be any decimal numbers

from 00 to 07.

To the right of each device number is a number for each of the HPG’s.

This is the pulse count value of the pulse counter that counts from 0 to 63

and then rolls over. Even though the number of pulse counts displayed for

each HPG is limited to 64, the total pulse count of each HPG, which is

stored internally by the system software, is unlimited.

Since this is a real time display, its response is limited only by delays in

screen updates.

Only HPG devices connected to the I/O Ring are displayed on this screen.

Pressing the exit softkey (up arrow) at any time displays the Ring I/O

Menu screen.

15A.4.7

HPG Diagnostics

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