What causes Unity error "Due to alignment constraint, you have to decrease or increase topological address index of 1"? | Schneider Electric Canada

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What causes Unity error "Due to alignment constraint, you have to decrease or increase topological address index of 1"?

In Unity Pro/Control Expert, 32 bit datatypes must be mapped to an even address boundary when using the M340 & M580 PLCs.
For example, variables of REAL or DINT datatypes must be mapped to %MW2, not %MW1.

Released for:Schneider Electric Canada

Published on:2014-02-26Last Modified on:2022-09-16

Range:

EcoStruxure Control Expert (Unity Pro)

Modicon M340

Range:

EcoStruxure Control Expert (Unity Pro)

Modicon M340