How can I get the value of a specific bit in the boolean representation of a int

For the logix driver, simply make an OPC tag with addressing to the bit level. Put the item path you see in the Studio 5000 tag monitor directly into an Ignition OPC item path in an OPC tag, after the bracketed device name. Like so: [SomeDevice]FV5003_HOA.HOA.HMIbits[0].15

BTW: That looks like a common PlantPax AOI. You should be aware of the performance issues you may encounter with those:

{ /shameless plug }

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