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Why do I get the error "Impossible to write variable" on my Magelis terminal?

Issue: 
Getting the error message "Impossible to write variable" on my Magelis terminal

Product Line:
XBTL1000, XBT

Resolution:
Check the variable address in the XBTL1000 application. The variable may not be in the PLC or you may have write selected for an input bit (1XXXX) or word (3XXXX). XBTL1000 will allow you to develop an application with write selected for an input which is not allowed.

 
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