7 Troubleshooting
7-20
NJ/NX-series Database Connection CPU Units User’s Manual (W527)
DB Connection Disconnected Error
The DB Connection was disconnected due to an error.
Source PLC Function Module Source details DB Connection
Service
Detection
timing
When a DB
Connection
Instruction is
executed, or
when Spool data
Error attributes Level Minor fault Recovery Automatic
DB Connection Service Status
The power supply to the server is
Check the server status and start it
properly.
Check the server status and start it
properly.
The DB is stopped in the server.
The Ethernet cable connector is
Reconnect the connector and
make sure it is mated correctly.
Connect the connector securely.
The Ethernet cable is broken. Replace the Ethernet cable. None
Noise Implement noise countermeasures
if there is excessive noise.
Implement noise countermeasures
if there is excessive noise.
Attached information 1: DB Connection Name
Precautions/