...
...
...
...
...
...
...
...
...
...
Page Content
| Table of Contents | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Library
| Anchor | ||||
|---|---|---|---|---|
|
RT-Events Math Operations
Block
| Anchor | ||||
|---|---|---|---|---|
|
...
Description
| Anchor | ||||
|---|---|---|---|---|
|
...
Reset (or restart) the cycle
Defining Trigger Type
| Anchor | ||||
|---|---|---|---|---|
|
The Insert block counts the pulses each time an edge of the selected type occurs. By selecting a rising trigger, high pulses will be inserted in the input. By selection a falling trigger, low pulses will be inserted in the input.
Defining an offset
| Anchor | ||||
|---|---|---|---|---|
|
The Insert block allows the user to choose where the pulses should be inserted in the input signal. The offset parameter determines an offset in pulses from the beginning of the cycle where the pulse are inserted.Reseting
Resetting the cycle
| Anchor | ||||
|---|---|---|---|---|
|
The Insert block determines where the pulses should be inserted relative to the first pulse of a cycle. The external reset signal can reset the internal counter that determine the beggining of a cycle. Each time an specified edge occur on the trigger input signal, the counter is reset to zero. The reset can be performed on rising edge, falling edge, or either.
Limitations
| Anchor | ||||
|---|---|---|---|---|
|
One of the limitations of this block occurs when the frequency of the input signal increases rapidly and the next rising edge of the input signal occurs before the new pulse was inserted. In this case, the input signal and the new pulse are combined with a logical AND.
...
In the extreme case where the time of the events of the new pulses exceeds the time of the falling edge of the next input pulse, the events are skipped.
Example:
...
Mask
| Anchor | ||||
|---|---|---|---|---|
|
...
Parameters
| Anchor | ||||
|---|---|---|---|---|
|
Trigger type | Determine the kind of edges used to count pulses (raising or falling). |
Number of pulses to insert | The number of pulses to insert at each cycle. |
Number of pulses by cycle | The number of pulses from the input signal, to complete a cycle. |
Offset | Relative offset to the beginning of the cycle where the pulses are inserted. |
Pulse width | Pulse width in percent of the input signal period. |
Delay | Pulse delay in percent of the input signal period relative to the end of the pulse. |
External Reset | Edge type used to reset the cycle (none, rising, falling, either). |
Maximum Number of events | The maximum number of events or transitions that can occur during a single step. Over this number, events are skipped. |
Input
| Anchor | ||||
|---|---|---|---|---|
|
Input (RTE Boolean) | RTE Boolean signal (pulse waveform) to modify |
External Reset (Double) | RTE Boolean signal use to reset a cycle |
Output
| Anchor | ||||
|---|---|---|---|---|
|
Output (RTE Boolean) | Modified RTE Boolean signal |
Characteristics
| Anchor | ||||
|---|---|---|---|---|
|
Direct Feedthrough | Yes |
Sample time | Inherited and fixed discrete. |
Work offline | Yes |
Dimensionalized | Yes |
Example
| Anchor | ||||
|---|---|---|---|---|
|
The rte_encoder.mdl model demonstrates how to use RT-Events blocks to simulate an incremental encoder connected to a rotating object. This example also shows how to use blocks of the library to insert fault, to filter noise and to measure some characterics of RTE Boolean signal. In this example the RTE Insert block is used to insert fault in the generated pulse of the encoder.
Related Items
| Anchor | ||||
|---|---|---|---|---|
|