Manage specifications

Using the OCO specifications attributes and commands, you can configure specifications that have been created in the MES database using MES Client and then execute the specifications. However, you cannot create specifications using the OCO.

The specification attributes and commands are on the Specifications tab in the Object Editor. For this tab to appear in the Object Editor, the Enable Specifications option on the General tab must be selected.

You can map the specification properties such as specification value, minimum value, or maximum value with object attributes. When you execute the specifications commands available for an object at run time, the mapped specification values are retrieved from the database for the corresponding object attributes at run time.

You can map run-time attributes of a specification with external input or output sources to execute upload and download commands. The following two sets of attributes are created for every specification:

• Working attributes, which allow you to change properties of a specification, such as SpecValue, MinValue, or MaxValue. You can change specification properties after loading them from the database and before uploading them to external input or output sources.

• Target attributes, which allow you to map specification properties with external input or output sources while extending them with an InputOutput.Reference or InputSource attribute (only for SpecValueActual, the only uploadable attribute).

For information about the attributes available at run time, see Specification attributes available at run time.