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When using the sample ladder I get an M0/M1 file reference error in my SLC processor if the MVI46 or 3150 is not in Slot 1.

Article Number: 72 | Rating: 5/5 from 1 votes | Last Updated: Thu, Jun 19, 2014 at 8:12 PM

The M0 and M1 files are slot referenced. The second digit in the address represents the slot number.

If the MVI46 or 3150 module is in slot 1 (next to the processor), then the file reference is M0:1.XXXX and M1:1.XXXX
If the module is in slot 5, then the file reference would be MO:G>5.xxxx and m1:5.xxxx

The same slot reference applies to input and output files (i and o references)

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