Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual page 295

Alternatively, you can assign SIMOTION to an I/O channel during the terminal configuration
(e.g. by selecting "DI (SIMOTION)", see Section Configuration of the D4x5-2 I/Os (terminal
X122/X132) (Page 284)).
TO axis
The symbolic assignment of I/Os is also supported by the TO axis (e.g. for a HW limit switch).
Substitute values for I/O variables
Substitute values cannot be specified for input variables of the BOOL data type. If you do
require substitute values however, proceed as follows:
1. Assign a digital input (e.g. SINAMICS_Integrated.Control_Unit.DI_0 [DI 0, X122.1]) to an
input variable of the BOOL type (e.g. sensor).
2. Create a global variable (e.g. all_inputs) (at least data type WORD, e.g.
SINAMICS_Integrated.Control_Unit.DI_0_15).
3. Configure the substitute value.
The appropriate bit of the substitute value must then contain the substitute value for the
BOOL variable.
In the same way, you can assign a substitute value to a BICO parameter.
For various SINAMICS drive objects, higher-level types are available for the assignment of
substitute values.
Figure 7-65 Configuration of substitute values
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
7.13 Configuration of the technology objects and I/O variables
Commissioning (software)
295