Siemens SIMOTION D4 5-2 Series Commissioning And Hardware Installation Manual page 256

Commissioning (software)
6.12 Configuring drive-related I/Os (with symbolic assignment)
Procedure
The configuration of the I/Os is divided into two basic steps:
1. Configuration of the I/O terminals (Page 257). The functionality of an I/O channel is
2. Configuration of the technology objects and I/O variables. (Page 262)
channels are offered for selection.
Example:
For the TO measuringInput, only symbolic assignments of the type MI (measuring input)
The required message frames and the interconnection are then set automatically by the
engineering system.
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configured (e.g. configuration of a DI/DO as digital output).
The access of technology objects and I/O variables to I/Os is configured.
The configuration is performed symbolically, whereby only "function-compatible" I/O
are offered for selection.
Commissioning and Hardware Installation Manual, 02/2012
SIMOTION D4x5-2