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9 Troubleshooting
NX-series Digital I/O Unit User’s Manual (W521)
9-3 Checking for Errors and Troubleshooting on the Sysmac Studio
9
9-3-1 Checking for Errors from the Sysmac Studio
9-3 Checking for Errors and Trouble-
shooting on the Sysmac Studio
Error management on the NX Series is based on the methods used for the NJ-series Controllers.
This allows you to use the Sysmac Studio to check the meanings of errors and troubleshooting proce-
dures.
When an error occurs, you can place the Sysmac Studio online to the Controller or the Communications
Coupler Unit to check current Controller errors and the log of past Controller errors.
Refer to the user’s manual for the connected Communications Coupler Unit for details on how to check
errors.
Open the Sysmac Studio's Controller Error Tab Page to check the current error's level, source,
source details, event name, event codes, details, attached information 1 to 4, and correction.
Errors in the observation level are not displayed.
Number of Current Errors
The following table gives the number of errors that are reported simultaneously as current
errors in each Unit.
If the number of errors exceeds the maximum number of reportable current errors, errors are
reported with a priority given to the oldest and highest-level errors. Errors that exceed the limit
on simultaneous error notifications are not reported.
Errors that are not reported are still reflected in the error status.
9-3-1 Checking for Errors from the Sysmac Studio
Current Errors
Unit Number of simultaneous error notifications
Digital I/O Unit Since current errors are managed in the Communications Coupler
Unit, the number of current errors is limited by the number of
errors for the Communications Coupler Unit.
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