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Originally published on Geo SCADA Knowledge Base by sbeadle1 | June 10, 2021 04:13 AM
📖 Home Back Currently Logic can not read/write 64 bit integers ie VT_UI8 and VT_I8. The largest granule file tag is an example of this (#HIS.Raw.Largest File). When viewed as a variable in FBD/ST these values will return zero. A workaround for this is to have an OPC point reference the tag ie "#HIS.Raw.Largest File". The Current Value of this point can then be used in a logic program if required. This example returns the file size in bytes (32 bytes per record). Go: Home Back
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