7 Troubleshooting
7-5
NJ/NX-series Database Connection CPU Units User’s Manual (W527)
7
7-1-2 Errors Related to the DB Connection Service
Shows the status of the DB Connection Service.
Run BOOL Running Flag TRUE while the DB Connection Service is
running.
FALSE while the DB Connection Service is not
Test BOOL Test Mode TRUE while the DB Connection Service is
running in Test Mode.
FALSE while the DB Connection Service is not
Idle BOOL Idle TRUE while the DB Connection Service is idle.
FALSE while the DB Connection Service is not
Error BOOL Error Flag TRUE when the DB Connection Service has an
error.
FALSE when the DB Connection Service has
Shutdown BOOL Shutdown TRUE when the DB Connection Service has
been shut down.
FALSE when the DB Connection Service has
7-1-2 Errors Related to the DB Connection Service
Classifications
There are the following two sources of errors in the DB Connection Service.
Classification Event source Source details
System log Access log
User-defined
Instruction Yes No No
Event Levels
This section describes the operation of the DB Connection Service for each event level.
All NJ/NX-series Controller control operations stop for errors in this event level.
Partial fault All control operations for one of the function modules in the NJ/NX-series
Controller stop for errors in this event level. If a partial fault level error occurs in
the DB Connection Service, all functions of the DB Connection Service stop.
Minor fault Some of the control operations for one of the function modules in the
NJ/NX-series Controller stop for errors in this event level.
Observation Errors in the observation level do not affect NJ/NX-series Controller control
operations. Observations are reported in order to prevent them from developing
into errors at the minor fault level or higher.
Information Events that are classified as information provide information that do not indicate