| Simulink Reference | |
Delay a signal one sample period, with an external initial condition
Library
Additional Math & Discrete / Additional Discrete
Description
The Unit Delay External IC block delays its input by one sample period. This block is equivalent to the z-1 discrete-time operator. The block accepts one input and generates one output, both of which can be scalar or vector. If the input is a vector, all elements of the vector are delayed by the same sample period.
The block's output for the first sample period is equal to the signal IC.
The input u and initial condition IC data types must be the same, and are any data type.
You specify the time between samples with the Sample time parameter. A setting of -1 means the Sample time is inherited.
Data Type Support
The Unit Delay External IC block accepts signals of any data type supported by Simulink, including fixed-point data types.
Parameters and Dialog Box
-1. See Specifying Sample Time in the online documentation for more information.
Characteristics
| Direct Feedthrough |
No, of the input port Yes, of the external IC port |
| Sample Time |
Specified in the Sample time parameter |
| Scalar Expansion |
Yes |
See Also
Unit Delay, Unit Delay Enabled, Unit Delay Enabled External IC, Unit Delay Enabled Resettable, Unit Delay Enabled Resettable External IC, Unit Delay Resettable, Unit Delay Resettable External IC, Unit Delay With Preview Enabled, Unit Delay With Preview Enabled Resettable, Unit Delay With Preview Enabled Resettable External RV, Unit Delay With Preview Resettable, Unit Delay With Preview Resettable External RV
| | Unit Delay Enabled Resettable External IC | Unit Delay Resettable | |
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