Force Data
    All data that is contained in an I/O tag can be forced while the project is safety-unlocked and no safety signature exists.
 However, forces must be removed, not just disabled, on all safety tags before the safety project can be safety-locked or a safety signature can be generated. You cannot force safety tags while the project is safety-locked or when a safety signature exists.
     TIP: 
    You can install and remove forces on standard tags regardless of the safety-locked or safety-unlocked state.
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