Why does LoggerNet create a backup data file every time data collection is triggered?

Before it appends to a TOA5, TOB1, or TOACI1 data file, LoggerNet first scans the header of that file and compares the information that it contains with the information reported in the data logger table definitions. For TOA5, the following conditions can result in errors that will cause LoggerNet to refuse to append to the file:

  • The table names do not match.
  • The number of columns does not match.
  • One or more column names do not match.
  • The number of units strings does not match the number of column names.
  • The number of process strings does not match the number of column names.

There have been cases where, using the FieldNames() instruction, the data logger program specified a double quote character (") in the units string, and this character unbalanced the quote marks in the TOA5 format, which in turn threw off the TOA5 parser.

This was helpful

FAQs Home


Similar FAQs