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What is the cause of a FDH-C1C0H error with the Magelis HMI running Vijeo Designer V6.2?

Issue
What is the cause of a FDH-C1C0H error with the Magelis HMI running Vijeo Designer V6.2?

Product Line
EcoStruxure Control Expert (Unity Pro), Vijeo Designer

Environment
Magelis HMI (or Simulated HMI from Vijeo Designer), EcoStruxure Control Expert / Unity Pro PLC (or Simulated PLC)

Cause
The FDH-C1C0H error usually occurs when the variable link with the EcoStruxure Control Expert / Unity Pro application (.XVM Variable Export or .STU project) file is outdated.
The Device Addresses associated to the variables are assigned to the PLC's application just before a download. Each time the application is changed, a unique set of Device Addresses are generated at the time of code generation.

Resolution
To resolve this you need to make sure the EcoStruxure Control Expert / Unity Pro application is online Equal with the PLC.  If not, build the latest changes and complete a download to the controller. Export the variables to an XVM file (or save the project as an STU file). This will generate the latest set of Device Addresses associated with the current variables.

In the Vijeo Designer, update the link and redownload the project to the HMI (or simulate the HMI).
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