Create a sequencing parameter using the New Parameter or Tag dialog

Sequencing input parameters define the set of parameters that must be provided to an
Equipment Sequence
 program to coordinate manufacturing a product. The sequencing output parameters record process variables set during execution.
To create a sequencing parameter using the New Parameter or Tag dialog box:
  1. Right-click on
    Parameters and Local Tags
     in the
    Equipment Sequence
    .
  2. Select
    New Parameter
    .
  3. In the
    Name
    field, enter the name of the sequencing parameter.
  4. (optional) In the
    Description
    field, enter a description of the sequencing parameter.
  5. In the
    Usage
    list, select one of the following:
    • Input Parameter
    • Output Parameter
  6. Select dots in the
    Data Type
     list to access the
    Select Data Type
     dialog box and select one of the sequencing parameter data types.
    Sequencing parameters only allow these system provided data types:
    SEQ_DINT
    ,
    SEQ_SINT
    ,
    SEQ_INT
    ,
    SEQ_REAL
    ,
    SEQ_BOOL
    , and
    SEQ_STRING
    .
  7. (optional) In the
    Parameter Connection
     list, choose a single connection for the sequencing parameter.
  8. In the
    Scope
    list, the
    Equipment Sequence
     you are creating the new parameter in is shown by default. The sequencing parameter is created in this
    Equipment Sequence
    .
  9. In the
    External Access
     list, choose whether the sequencing parameter will have
    Read/Write
    ,
    Read Only
    , or no (
    None
    ) access from external applications such as HMIs.
    TIP:
    It is recommended to have input parameters use
    Read/Write
     access, and output parameters use
    Read Only
     access. Often, inputs are assigned by an operator and outputs need to maintain the integrity of the value assigned to it by the sequence.
  10. In OPC UA Access, select the level of access (Read Only, Read/Write, or None) that external OPC UA clients have to tags.
  11. Verify the
    Sequencing
    check box is selected. This is the default.
  12. Select the
    Create
     down arrow for create options. Select:
    • Create and Close
       to close the dialog box after creating a tag (default).
    • Create and Open New
       to save the tag created and open another empty
      New Tag
       dialog box.
    • Create and Keep Open
       to save the tag created and keep the dialog box open with the values still showing.
  13. To configure or change the following sequencing parameter attributes, go to the Tag Editor:
    • Sequencing flag
    • Data Type
    • Description
    • External Access
    • Connections
      For each sequencing parameter, the Description and Connections may be configured for the Value, Valid, and Initial Value attributes.
  14. To configure or change the following sequencing parameter attributes, go to the Sequence Tag Editor:
    • Value
    • Initial Value
    • Expression (only available on sequencing output parameters)
    • Description
      TIP:
      These boxes in the
      New Parameter and Tag
       dialog box are not configurable, because they do not apply to sequencing parameters:
      • Base Tag
      • Alias
      • Style
      Constant
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