3 Error Tables
3-2
NJ-series Troubleshooting Manual (W503)
3-1 Errors by Source
This section provides tables of errors (events) by source. Within each source, errors are given by func-
tional classifications. Events that are not errors are also given in the tables.
The contents of the error tables are described below.
Note This symbol appears only for events for which the user can change the event level.
The section provides tables of the events that can occur in the PLC Function Module. They are divided
into the following functional classifications.
• Self-diagnosis
• Unit configuration
• Tasks
• Controller operation
• FINS communications
• Instructions
• Instruction events are supported by CPU Units with unit version 1.02 or later.
• To create instruction events, you must select Use for Event Log Settings
−
Instruction Error
Output on the Controller Setup. With the default setting, instructions events are not output.
Sysmac Studio version 1.03 or higher is required to use the Event Log Settings.
3-1-1 Interpreting Error Descriptions
Item Description
Event code The event code of the error in the NJ-series Controller is given. The codes are
given in eight hexadecimal digits.
Event name The name of the error is given
Meaning A short description of the error is given.
Assumed cause The assumed cause of the error is given
Level The level of influence on control is given. The abbreviations have the following
meanings.
Maj: Major fault level
Prt: Partial fault level
Min: Minor fault level
Obs: Observation
Info: Information
The symbols have the following meanings.
S: Event levels that are defined by the system.
U: Event levels that can be changed by the user. (See note.)
Reference The name and catalog number of the manual that provides details on the event
are given.
3-1-2 Errors in the PLC Function Module
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