How to Select a Match String from the WebHMI in EasyBuilder

When using EasyBuilder, you can display the drop-down menu on the WebHMI using the Math Tool and the ListBox() and Choose() functions.

In this example:

• Create a List of Match String Choices:
  • Use the function ListBox("COGNEX","IN-SIGHT2800","EDGELEARNING!")
• Read the List Box choice:
  • Type B0 into Cell C0. This will give you the Index Number of the ListBox() function
• Use the List Box Index to and the Choose() function to Output the Chosen String:
  • Choose(C0,"COGNEX","IN-SIGHT2800","EDGELEARNING!")
• Read_1.ReadText:
  • Bring the text string from ViDi EL Read into the Math Tool
• Compare the ViDi Read EL String with the Customer Selected Match String
  • Use the function Exact(D0,B2)
• Output whether the Match String and the Read String Match
  • Use the function Choose(B4,"Bad String","Good String")

Here is a graphical representation of this example.