Try creating a tag with an address way above what are being used i.e. DDT400 (assuming none in that range are being used
& see if that gives you a reading.
also, check the compiler section as there are areas allocated to certain uses i.e. globals, internal use. compiler (for automatically assigning PLC variables on the fly used for temps as local variables during compile)
Make sure your DDT200 is well inside the range for global variables.
& see if that gives you a reading.
also, check the compiler section as there are areas allocated to certain uses i.e. globals, internal use. compiler (for automatically assigning PLC variables on the fly used for temps as local variables during compile)
Make sure your DDT200 is well inside the range for global variables.
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