ARC Informatique is a forward-thinking industrial software editor with 16 offices worldwide, in business for over 40 years. Through extensive knowledge of our user base, we have been revolutionizing industrial operations by delivering the PcVue platform, a reliable and robust SCADA dedicated to monitoring and control, built on the latest technologies.
At PcVue, we prioritize diversity of people and opinions, and give them lots of opportunities to be heard. That’s why we’re standard setters in the innovation sector. And why we’ll keep winning recognition for creativity in our field. May be even with you?
ARC Informatique is a forward-thinking industrial software editor with 16 offices worldwide, in business for over 40 years. Through extensive knowledge of our user base, we have been revolutionizing industrial operations by delivering the PcVue platform, a reliable and robust SCADA dedicated to monitoring and control, built on the latest technologies.
At PcVue, we prioritize diversity of people and opinions, and give them lots of opportunities to be heard. That’s why we’re standard setters in the innovation sector. And why we’ll keep winning recognition for creativity in our field. May be even with you?
This article explains how to deal with error messages 16720 and 16721.
Details:
French PcVue: “16720, OPC, Ecriture, %s, Erreur lors de la conversion” English PcVue: “16721, OPC,Write,%s, error while converting value”
%s is the name of the PcVue variable referenced by this message.
Explanation
Your application is trying to write OPC items with a wrong type.
Example
The Event Viewer first returns the error message 16722 or 16723 when linking a PcVue text variable with a numerical item type. It also does so after the message above when you try to write to the item.
This message should never appear in the Event Viewer, as all types supported by OPC servers are referenced in PcVue.
