Feeders, Loads and Eaters

Feeders

Feeders are objects that generate loads in your scene. You can add feeders in two different ways:

  • In the Field Equipment catalog, expand the subnode Miscellaneous, select the object Feeder and drag it to the Model view.

    As a result, the feeder is shown as a small yellow square in the Model view and is added to the Solution Explorer view as a new subnode of the Feeder node in the selected Section. You can resize and re-orientate this square and move it within the Model view.

  • Right-click a conveyor that is available as an assembly in you scene. Execute the command Insert Feeder from the contextual menu.

    As a result, the feeder is shown at the beginning of the conveyor as a yellow triangle.

Properties of Feeders

The properties described in the following sections apply to feeders that were added from the Field Equipment catalog. Feeders that are subnodes of a conveyor do not provide all the properties.

Select a feeder in the Model view or in the Solution Explorer view and display the associated parameters in the Properties view on the right-hand side of the EcoStruxure Machine Expert Twin screen. The properties of a feeder consist of different sections providing the parameters described in this chapter. These parameters also define the loads that are generated by the feeder.

Identification Section

Parameter

Description

Type

Indicates the type of the feeder as defined in the catalog.

Category

Indicates the category of the feeder.

Name

Indicates the default name of the feeder.

Click the field to edit the name and adapt it to your requirements.

Association Section

Parameter

Description

Section

Indicates the section in which the selected feeder is placed.

To shift the feeder to another section, open the Section list and select Section<n>.

Result: In the Solution Explorer view, the belt or conveyor is displayed as a subnode of Section<n> > Feeder.

Control Panel

By default, feeders are not assigned to a control panel.

To assign the selected feeder to controls, open the list and select a control panel.

Automatic Feeding Section

Parameter

Description

Feed By

Select Feed By > Timer and configure a time Interval for generating loads.

Select Feed By > Gap and configure a Gap (in mm) defining the distance a load must have been moved away from the feeder before a new load is generated.

Started

Select the check box to start generating loads according to the configuration.

Interval

When you selected Feed By > Timer, configure a feeding interval by configuring the following parameters:

  • Mean (µ): Enter a mean value defining that every x unit a new load is created by the timer.

  • Std. Deviation (σ): Enter a deviation of x units that is allowed for generating loads.

  • Base: Select a time unit for the interval: Second, Millisecond, Minute, Hour

NOTE: To modify these parameters, ensure that the check box Started is not selected.

Gap

When you selected Feed By > Gap, configure a distance (in mm) a load must have been moved away from the feeder before a new load is generated.

Max Loads

Enter a maximum number of loads to be generated.

Auto Start

Select the check box to start the feeder automatically, for example, depending on a motor configured with the parameter Motor Dependency.

Pause

Select the check box to pause generating loads.

Motor Dependency

With the Auto Start check box selected, select a motor from the list: When the selected motor is running, the feeder starts generating loads.

NOTE: To modify this parameter, ensure that the check box Started is not selected.

Barcodes Section

Parameter

Description

Automatic Generate

By default, the loads generated by the feeder are not equipped with a barcode. To add a barcode to each load, select this check box.

Next Barcode

If the Automatic Generate check box is selected, each load is assigned a barcode, starting from 1.

You have the following options:

  • Enter a figure, for example, 100, to start from this figure assigning barcodes to the new loads.

  • Enter a string, for example, box, that will be used as a prefix for each barcode number, starting with box1, for example.

Load Section

Parameter

Description

Type

From the list, select a type of load that suits your needs, for example, Package or Euro Pallet.

Mode

From the list, define the size of the load:

  • Fixed

    Loads that are created have the same size. Further parameters are displayed to specify the loads to be created. They depend on the selected Type of load. For a Package, for example, the following parameters are available: Length, Width, Height, Density Mode, Density, Rigid, Center Of Mass, Color.

  • Random

    Loads of random size are created. Further parameters are displayed allowing you to configure a range for the size of the load with the parameters Min. Dimension and Max. Dimension.

  • RandomLength

    Loads of random lengths are created. Further parameters are displayed allowing you to configure a range for the length of the load with the parameters Length (Min.) and Length (Max.).

PLC Output Section

Load management can be controlled by controller outputs:

Parameter

Description

Feed

Configure a Boolean controller output signal that starts the feeding process of this feeder upon a rising edge.

Delete all loads

Configure a Boolean controller output signal that initiates deleting the loads that were created by this feeder from the Model view upon a rising edge.

Functionable Section

Parameter

Description

Enabled

By default, the check box is selected and the feeder is enabled.

To disable the feeder, deselect this check box.

Scripts Section

Parameter

Description

Events

Select one of the following Events:

  • Deselect

  • DoubleClick

  • Reset

  • Select

Click the Source > ... button of the event to open a Script view where you can enter the programming code to execute when the selected event is detected. The Script view provides the same functions as described in the EcoStruxure Machine Expert Twin Getting Started User Guide.

Statistics Section

Parameter

Description

Observe

Select this check box to add the selected feeder to the Statistics view: It displays the number of loads generated by this feeder in the scene.

Visualization Section

Parameter

Description

Visible

Deselect this check box to hide the feeder in the scene.

Eaters

Eaters are objects that remove loads from the scene. You can add an eater by selecting the Eater object from the Miscellaneous section of the Field Equipment catalog and dragging it to the Model view.

In addition to the properties already described for the feeder or other assemblies, it provides the following specific Properties:

PLC Input Section

Parameter

Description

Eated

Configure a Boolean input signal sending the status information that a load has been eaten upon a rising edge.

PLC Output Section

Parameter

Description

Enabled

Configure a Boolean controller output signal that enables the eater upon a rising edge.

Statistics Section

Parameter

Description

Observe

Select this check box to add the selected eater to the Statistics view: It displays the number of loads that have been removed by this eater from the scene.