ABB AC500 Introduction Manual page 114

Recommendation: For the planning of your plant we recommend to use symbolic names according to
your plant.
Assign a name to each variable. For the 8 DC (as outputs) of the DC505-FBP module:
For the 16 DI + 16 DC (as inputs) of the DC532 module:
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Introduction to AC500 1-112
AC500 / Issued: 07.2006