Sepasoft MES Module Suite
Operations Segment
An Operations Segment is defined as a task that is performed during manufacturing. It is always derived from a Process Segment, which means that the property values and resource definitions for material, personnel and equipment are copied over from a Process Segment to its linked Operations Segment.
Linking Operation Segments within an Operations Definition
Operations Segments may be linked to an Operations Definition using the Segment Dependency Property object of the Operations Segment. The dependency object can be used to provide links between all segments within an Operations Definition. The MES Object Editor can be used to create the links for you on the Operations Segment, not the Operations Definition. Links can also be created through scripting.
Inherits properties, methods, events from AbstractMESObject
Object Creation
Operations Segments can be created using the MES Object Editor component and also with scripting functions. When updating a Process or Operations Segment using the MES Object Editor component, the user will be asked if they want to update the dependencies of any derived Operations Segments. If they answer yes, the changes will be pushed to all Process Segments or Operations Segments that were derived from the modified Process Segment.
The following scripting functions can be used to create or return this object.
Python |
#Load the process segment to base the operations segment on psName = 'Unload Nuts' ps = system.mes.loadMESObject(psName, 'ProcessSegment') #Derive a new operation segment from the process segment os = system.mes.deriveMESObject(ps, 'OperationsSegment', True) #Set where it was derived from os.setPropertyValue('DerivedFromRefType', 'ProcessSegment') os.setPropertyValue('DerivedFromRefUUID', ps.getUUID()) #Set the name os.setPropertyValue('Name', psName) #Create a new operations definition od = system.mes.createMESObject('OperationsDefinition') #Set the name using the same name as the operations segment od.setPropertyValue('Name', psName) #Create a new segment dependency complex property in the operations definition that points to the operations segment depProp = od.createComplexProperty('SegmentDependency', ps.getName()) depProp.setSegmentRefType('OperationsSegment') depProp.setSegmentRefUUID(os.getUUID()) #Create a new begin trigger complex property in the operation segment begTrig = os.createComplexProperty('TriggerSegBegin', 'DefaultBeginTrigger') begTrig.setPrecedingRefType('OperationsDefinition') begTrig.setPrecedingRefUUID(od.getUUID()) begTrig.setMode('At Operation Begin') begTrig.setDefault(True) #Save the objects as a group objList = system.mes.object.list.createList() objList.add(od) objList.add(os) system.mes.saveMESObjects(objList) |
Object Properties
These properties are accessible through the MES Object Editor and with the provided object functions, but not directly as obj.properties. Property values can be accessed and changed for an object by using the getPropertyValue() and setPropertyValue() method.
| Name | R/W | Description |
EndOperationWhenComplete | Read/Write | If this property is set to True, then the operations automatically ends when segment is complete |
SegmentRecipeName | Read/Write | This is a drop down list of available recipes which can be set to be used on segment start |
 |
The "EndOperationWhenComplete" property will prompt an Operations Response to end when a Response Segment (based on an Operations Segment with this flag set to true) ends. This will impact other segments under the Operations Response by immediately ending them. Please consider all possible Response Segments that may be running during an Operations Response when configuring this property. |
Inherits AbstractMESObject core properties
Complex Properties
An operations segment uses complex property objects to hold information about the resources associated with a task as well as OEE production settings. These complex properties can be added to the process segment using the MES Object Editor component or through scripting with the AbstractMESObject.createComplexProperty() function.
- AbstractMESObject.createComplexProperty()
| Property Object | Scripting | Description | ||
|---|---|---|---|---|
| Material Resource Property | Material | Any material lots that may be consumed or created during an operation derived from the process segment are defined here. There is no requirement to create material complex properties e.g. a maintenance process segment, and there is no restriction on how many input, output or consumable materials are defined for a process segment. | ||
| Equipment Resource Property | Equipment | A process segment requires one and only one Equipment complex property to be defined. this sets up production control on where this process segment can be executed. If you want to create a process segment that can occur on any piece of equipment e.g. 'Clean Equipment', set the equipment reference to an equipment class that contains all equipment. | ||
| Supplemental Equipment Resource Property | SupplementalEquipment | Mobile equipment that can be moved around such as bins, containers, die sets etc. cannot be defined in the production model as fixed equipment as defined by ISA-95. The MES Object Editor and scripting functions can be used instead to create Supplemental Equipment. Any supplemental equpiment that may be used by an operation can be defined here. | ||
| Personnel Resource Property | Personnel | Personnel complex properties allow to you add production control to a process segment by defining who can execute this process segment. This complex property is optional and can be left blank. | ||
| ProductionSettings | Production settings contain rate information that is used by the OEE module to calculate operational performance.
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| Trigger Segment Begin Property | TriggerSegmentBegin | This property holds information about what will trigger the start of an operation segment. | ||
| Trigger Segment End Property | TriggerSegmentEnd | This property holds information about what will cause an operation segment to end. |
Functions
This object provides the following functions:
- getEquipment()
- getEquipmentLink()
- getEquipmentProperty()
- getPrimaryBeginTrigger()
- getPrimaryEndTrigger()
- getProductionSettingsProperty(equipmentPath)
Sepasoft MES Module Suite