BOM Pre-Check#

Overview#

The BOM Pre-Check feature compares the component data received from Fuji's BOMLIST event with the material BOM stored in MES. This ensures consistency and accuracy before production begins.

How It Works#

Data Preparation Step#

The BOMLIST event is sent by Fuji when the PGCHANGEII event receives an acknowledge.

The Automation Controller will parse this event and store a list of Reference Designators with the corresponding Product in persistent storage using a key composed of equipment details:

BOMLIST_{Equipment Line Name}_{Equipment Machine Name}_{Equipment Module Number}_{Equipment Lane Number}_{Equipment Program Name}.

    PlacementLists: '[
    {
        "ReferenceDesignator": "C1",
        "ComponentNames": [
        "SMT_Component_1"
        ]
    },
    {
        "ReferenceDesignator": "C2",
        "ComponentNames": [
        "SMT_Component_1"
        ]
    },
    {
        "ReferenceDesignator": "C5",
        "ComponentNames": [
        "SMT_Component_2"
        ]
    },
    {
        "ReferenceDesignator": "C3",
        "ComponentNames": [
        "SMT_Component_1"
        ]
    },
    {
        "ReferenceDesignator": "C4",
        "ComponentNames": [
        "SMT_Component_1"
        ]
    }
    ]'

Validation Step#

When a PCBCHECKIN event is received:

• The stored BOMLIST data is retrieved.
• It is sent as input to the service ValidatePlacementList for comparison against the current BOM material in MES.

For more information about ValidatePlacementList check here.

Persistency Handling#

After the first successful validation of the BOM, a key named BomValidated_<Resource Name> will be stored in persistency with the value true. This allows subsequent requests to bypass validation until a new recipe is downloaded to the equipment.

If you need to trigger a new validation on the next board request event, you can send a message bus message to the Area configured for the OIB Controller. Use the action group SMT.IoT.Utilities.ResetPreBomValidation and include the ResourceName in the message body.

UseReference("", "Cmf.Foundation.Common.Exceptions");
UseReference("Cmf.Foundation.BusinessObjects.dll", "Cmf.Foundation.BusinessObjects");
UseReference("Cmf.Foundation.BusinessOrchestration.dll", "");
UseReference("", "Cmf.Foundation.Common.Exceptions");
UseReference("", "Cmf.Foundation.Common");
UseReference("Cmf.Navigo.BusinessObjects.dll", "Cmf.Navigo.BusinessObjects");

var serviceProvider = (IServiceProvider)Input["ServiceProvider"];
IArea area = serviceProvider.GetService<IArea>();
area.Name = "SMT_Production Line";
area.Load();

var instance = area.GetAutomationControllerInstance();
if (instance == null)
{
    throw new Exception("Area not connected to any IoT instance");
}
else
{
    var args = new
    {
        ResourceName = "SMT_Pick_Place_1"
    };

    instance.Publish("SMT.IoT.Utilities.ResetPreBomValidation", args.ToJsonString());
}