These appear in the read errors list on the dashboard (see Read Errors).
|
Message
|
Cause
|
What to Do
|
|
Cannot connect to 192.168.1.20. followed by a reason
|
The PLC or server cannot be reached. Every tag on that controller shows it. Applies to any controller type.
|
Check the device is on the same network, the IP address and port are right, and the controller is switched on. Try raising the Connection Timeout.
|
|
Not found in the 'TagName' column.
|
Database: the tag's name is not in the Tag Name Column of the table.
|
Check the tag name is spelt exactly as it is logged.
|
|
Invalid column name 'X'.
|
Database: a column name is misspelt.
|
Check the Tag Name, Tag Name Column, Tag Value Column and Timestamp against the table.
|
|
Invalid object name 'X'.
|
Database: the table or view cannot be found.
|
Check the Database Table Name, and include its schema, for example Logging.DataLog.
|
|
'FLOAT' does not match what column 'Value' holds.
|
Database: the data type does not match the value held.
|
|
|
Both the tag name column and the tag value column have to be set.
|
Database: only one of the two columns is filled in.
|
Fill in both, or leave both empty.
|
|
'X' has no rows.
|
Database: the table or view is empty.
|
Check the table is being written to.
| |