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Configuring Attributes

Whenever a check is to be compared against a specification that is dependent upon the asset, that check needs to reference an attribute. 'Check' and Calculation' check types can have an attribute associated to them, Trigger types cannot.

Attributes

Adding an Attribute​

Attributes can be added and edited by clicking the

button on the left. Attributes are organized in a hierarchy based on their assignment within a parent attribute. To create a new attribute, first select its intended parent attribute from the attribute tree on the left. Click the icon, which clears the form for the addition of a new attribute. If no parent attribute is assigned, it will reside at the top level.

Each attribute requires a name. Attribute names do not need to be unique. In fact, identical names should be used such as 'Dryer Temperature' for comparison of similar attributes across assets. However, attribute name and asset combinations must be unique. The form provides additional fields to add a description or Enable/Disable the attribute. Click the Save button after creating or editing an attribute.

Attributes

To delete an attribute, select it in the tree and click the

button.

Configuring an Attribute​

To configure attribute settings, such as data source or tolerances, select the attribute in the table and click

. If you have security privileges, the fields can be edited from this popup. Otherwise, the Attribute Detail Editor will be in a view only mode.

Data Source Editor​

If an attribute value can be pulled directly from an asset, configure the Data Source settings. To add a new data source, click the

button.
Use the Asset Selector to associate the asset with this data source and Tag Browser to select the tag. Scale Factor and Ignore zero values parameters are specific to tag collector values, scaling the PLC value and preventing the storage of zero values if not required. Use the Enabled checkbox to enable or disable a data source.

Attributes

Attribute Specifications​

One or more specifications (or tolerances) can be added to an attribute. A tolerance can be applied to all items by leaving the Asset, Item and Item Set fields blank. Otherwise, the Asset and Item selectors can be used to set tolerances by individual item, asset or item set. To add a new tolerance, click the

button on the left of the Tolerance tab.

When a check is to be taken, it will first check if a tolerance exists for the current item. If no tolerance is found, it will check if the current item belongs to an item set that has a tolerance. If no item set tolerance has been configured, it will use the tolerance defined for all items.

Attributes

  • LEL - Lower Entry Limit Defines the minimum value that can be entered.
  • LSL - Lower Spec Limit Defines the lower Pass / Fail condition. Failing values will be highlighted red.
  • LCL - Lower Control Limit Defines the lower limit condition. Values below the LCL will be considered as passing but will be highlighted orange.
  • Target Defines the expected ideal value
  • UCL - Upper Control Limit Defines the upper limit condition. Values exceeding the UCL will be considered as passing but will be highlighted orange.
  • USL - Upper Spec Limit Defines the upper Pass / Fail condition. Failing values will be highlighted red.
  • UEL - Upper Entry Limit Defines the maximum value that can be entered.
note

Tolerance parameter values must make logical sense or will be highlighted in red as a warning. For instance, the Upper Entry Limit cannot be smaller than the Lower Entry Limit.