15a.4.6 operator panel keyboard diagnostics screen – Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual
Page 736

Section 15A
Troubleshooting The Control
15A-26
If an Operator Panel Keyboard (OPERATOR PANEL) device is selected
on the Ring I/O screen and the {DISPLY} softkey is pressed, the Operator
Panel Keyboard (OPERATOR PANEL) Diagnostics screen appears.
Figure 15A.9 is an example of this screen.
Figure 15A.9
OPERATOR PANEL Diagnostics Screen
OPERATOR PANEL
SETUP MODE
DEVICE NO.
NUMBER
0
1011000
X
The device numbers of all operator panel devices that are on the I/O Ring
will appear under the “OPERATOR PANEL” heading. These may be any
decimal numbers from 0 to 3.
To the right of the device number is a number that represents the binary
output from each of the operator panel keys. This number changes as the
operator panel keys are depressed. The symbol of the key that is depressed
will be displayed to the right of this number.
To verify key actuation, place a volt meter or oscilloscope probes between
test points TP1 (GND) and TP2 (KEY_ON) located on the keyboard
interface module. A logic high or +5V dc measured between TP1 and TP2
indicates a key actuation.
15A.4.6
Operator Panel Keyboard
Diagnostics Screen
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