Error History; Error History Table - Omron NE1A-SCPU01 - 07-2009 Operation Manual

Error History

12-4 Error History

12-4-1 Error History Table

Error History Table
EtherNet/IP Error History Table
IMPORTANT Check EtherNet/IP errors in the EtherNet/IP Error History Tab Page.
Error History Saving Area
Reading and Clearing the Error History Table
The error history records errors that the NE1A-series Controller detects in the
total operating time of the Controller.
The error history can be read from the Network Configurator.
When an error is detected in a Pre-Ver. 1.0 NE1A-series Controller, the error
is recorded in the error history table in the RAM of the Controller. The error
history contains one record per error and can hold up to 20 records. If the
error history table already contains 20 records, the oldest record is deleted
and the new error data is stored.
When an error is detected in a NE1A-series Controller with unit version 1.0 or
later (including Controllers that support EtherNet/IP), the error is recorded in
the error history table in the RAM of the Controller. The error history contains
one record per error and can hold up to 100 records. If the error history table
already contains 100 records, the oldest record is deleted and the new error
data is stored.
The following information is stored in the error history table:
• Status information when an error occurs
• The time when an error occurs (total operating time of the NE1A-series
Controller)
• The node address where the error occurred or the error response value
(when an explicit message is sent)
In addition to the error history table described above, the Controller has an
EtherNet/IP error history table that holds up to 64 error records. If an error is
recorded when the table already holds 64 error records, the oldest record is
deleted and the newest record is stored.
The description of an error is recorded as an error history in the NE1A-series
Controller's RAM, and if the error is critical, it is also saved in the nonvolatile
memory. The error history recorded in nonvolatile memory is retained even
when the power supply of the Controller is not supplied or restarted. The error
history in the nonvolatile memory is copied to the RAM at the start of the Con-
troller's power cycle.
The error history in RAM is read when reading the error history from the Net-
work Configurator. When clearing the error history, however, the error history
in both the RAM and nonvolatile memory are cleared.
The error history can be displayed in realtime using the Error History Display
function of the Network Configurator. The error history data can also be saved
on the computer.
Note (1) The total operating time of the NE1A-series Controller is recorded as the
accumulated time in 6-minutes increments while the power supply for the
internal circuit is ON. The total operating time is cleared using a Control-
Section 12-4
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