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Reset Status

Mechaware API Documentation > Input

Overview

Overview

Description

The Reset Status block is an Input block that is commonly used to reset the sum of PID, PIV, and Integrator with Reset blocks. If Enable is zero, then the output is always 0.0. If Enable has a non-zero value, then the output is 1.0 if the Axis has its DISABLED bit set and 0.0 otherwise. Its value is updated as determined by the Evaluate Block.

Example

The following example shows how to use the Scope blocks at the Noise Input and PID Filter. By finding the system response from Scope0 to Scope1, this is the frequency response of the servo loop.

The Reset Status block is used in this example to reset the Integrator sum when a move is completed. This allows for more complex integrator rules, such as not allowing the integrator to work during motion, and only while the motor is settled, or vice-versa.

The following parameters are used to configure this block at load time:

Axis Number

The number of the axis which is the source of the position data. This number may be absolute or linked to the Model Number.

Enable

If Enable is 0, the output of the block is always 0. Otherwise, the block behaves as normal.
Evaluate Block

This block allows you to specify whether the block executes Every Sample, Every Other Sample (Odd or Even), or Every Fourth Sample (and specify the First, Second, Third, or Fourth) or background. This provides greater flexibility in controlling the execution of a model and to preserve performance for other areas of motion control.
User Defined Block Priority When selected, allows you to enter a Priority Code to modify Execution Ordering of this block. For more information, see Block Execution Order and User Defined Block Priority.
Priority For an explanation of how the Priority field is used by the MechaWare Model Downloader, see Block Execution Order and User Defined Block Priority.
User Data 0 Application-specific data. See User Data Storage.
User Data 1 Application-specific data. See User Data Storage.

Matlab/Simulink

Simulink Interface

The Output of the Reset Status block is based on the value of the Axis’s DISABLED bit. This block has no inputs.

The Axis Number of the axis providing the position data is determined by the Axis Number parameter. This number can be absolute or linked to the model number.

The block has two user data fields (User Data 0, User Data 1) to store application-specific data for convenient storage and retrieval. See User Data Storage for details.

The block's update schedule is determined by the Evaluate Block. The following Parameter Dialog Box can be opened by double-clicking on the block in a Simulink Model:

C++ API

STATUSBlock

Declaration

Public Method

  
class STATUSBlock: public virtual Block
{
public:
	// User accessible coefficients
};
 

Required Header: mechaware.h

Description

The Reset Status block is used to connect the inputs of a model.

Methods

Block Methods

See Also

Memory
 Torque Output
Noise Generator MemoryOut
Actual Position Memory Out User Buffer
Command Position Scope
Position Error Feedback
Memory User Buffer Reset Status
Command Acceleration Test In
Command Velocity Test Out

 
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