15a.4.2 high density i/o – Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual

Page 725

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Section 15A

Troubleshooting the Control

15A-15

Figure 15A.2

Digital I/O Diagnostics Screen

DIGITAL I/O

SETUP MODE

DEVICE NO. 02

ON =

IN A

01 02 03 04 05 06 07 08 09 10

IN B

01 02 03 04 05 06 07 08 09 10

OUT A

11 12 13 14 15 16

OUT B

11 12 13 14 15 16

The device number of the selected Digital I/O appears under the

“DIGITAL I/O” heading. This will be a decimal number from 00 to 63.

This screen displays the inputs and outputs that correspond to the terminal

numbers on the Digital I/O. These are IN A (1 through 10), IN B (1

through 10), OUT A (11 through 16) and OUT B (11 through 16).

If an input or output is “ON”, its terminal number appears in inverse video.

This is a real time display, and its response is limited only by delays in

screen updates.

If more than one Digital I/O device is on the I/O Ring, a diagnostics screen

for each of these devices can be displayed. To display a diagnostics screen

for the next digital I/O on the ring, press and hold the [SHIFT] key and

press the [DOWN-ARROW] key.

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

Menu screen.

If a High Density I/O device is selected on the Ring I/O screen and the

{DISPLY} softkey is pressed, the High Density I/O Diagnostics screen

appears. Figure 15A.3 is an example of this screen.

15A.4.2

High Density I/O

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