Use specifications in the Operations Capability Object

In the Operation Capability Object (OCO), you can use the Specifications tab to browse and select the globally configured specifications from the MES database.

In the OCO, when you enable the Specifications tab in the object editor via the Enable Specifications check box in the General tab, it allows you to map the specification properties such as value, minimum value, and maximum value with object attributes.

When you execute the specifications commands in the OCO, the specifications that have been mapped as attributes in the galaxy are made available for the OCO at the run time. The mapped specification values are retrieved from the database for the OCO’s currently running job or a future job.

When you execute the Load Running Job Specs command in the OCO, the specifications for the currently running job on the parent entity of an OCO are loaded. In case of the Load Job Specs command, the OCO uses the values of work order, operation, and sequence number for a job that might be run in future to setup the specifications for later use on that job.

The step number is used to enable loading of the specifications for a single step, if a number greater than 0 is in the attribute or the number -1 causes the OCO to retrieve the specifications for all steps for an operation on a job.

Inside the OCO, two sets of attributes are created for every specification. The shop floor user can change specification properties after loading them from the database and before uploading them to external input or output sources. The attributes are as follows:

• The Working attributes, which are used to let a shop floor user change the setpoints value within the maximum and minimum limit values specified.

• The Target attributes, which are used to represent the values currently loaded into a device like a PLC on the shop floor.