Diagnostic timestamp – Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules User Manual

Page 69

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Rockwell Automation Publication 1756-UM058G-EN-P - November 2012

69

Diagnostic Module Features

Chapter 4

2.

Do one of the following in the Enable Diag. Latching column:

To enable diagnostic latching for a specific point, check the
corresponding checkbox.

To disable diagnostic latching for a specific point, clear the
corresponding checkbox.

3.

Click OK.

Latched diagnostic features can be cleared by using these methods:

Reset Diagnostic Latch service

Software reset during online monitoring

Cycling power to the module’s

Follow these steps to a reset a latched fault through RSLogix 5000 software
during online monitoring.

1.

On the Modules Properties screen, click the Diagnostics tab.

2.

Click Reset next to the point for which to reset a latched fault.

3.

Click OK.

Diagnostic Timestamp

Diagnostic I/O modules can timestamp the time when a fault occurs or when it
clears. This feature provides greater accuracy and flexibility in running
applications. Modules use the ControlLogix system clock from a local controller
to generate timestamps.

To use diagnostic timestamps, you must choose the appropriate communication
format during initial configuration. For more information, see

To configure

features specific to fast modules, see Chapter 5. on page 134

.

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