Tango7
Member
I am not exactly new to PLCs but I haven't seen this one before. One of my indirectly addressed tags is showing a ?? when seen in the ladder logic, but if I monitor the tag in the Program Tags tab, it shows the actual data that I am looking for.
I have tried to overwrite the data in the ladder logic viewer, and it will not allow me to do so. The ??(double question marks) remain.
Has anybody else seen this, and what do I do to remedy the situation??
Thanks
I have tried to overwrite the data in the ladder logic viewer, and it will not allow me to do so. The ??(double question marks) remain.
Has anybody else seen this, and what do I do to remedy the situation??
Thanks