You have clicked on the "?" button for search help. To search the site, enter your search terms in the box labeled "search the site" and hit Enter.

Some tips for better search results...

• Precede each search term with a "+", as follows:
  • +Modbus +TCP
  Otherwise, any post with either term will match.
• Use double quotes around phrases, as follows:
  • +"Allen Bradley" +ethernet
  Otherwise, posts containing these words in separate locations will match.
• To exclude a word, precede it with a "-", as follows:
  • +Modbus -Plus
  This will return only posts containing "Modbus" but NOT containing "Plus".
• Note that common words (and, that, etc.) and words shorter than 2 characters are automatically excluded from searches.