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Resource type |
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After you have assigned a resource to a scenario, the resource name appears in the schedule setup tree (on the scenarios tab). If you click the resource name in the schedule setup tree, the following window will be displayed in the right pane of the window.
At the top of this window, the resource name, description and class are displayed. They will always be greyed out as they can only be edited from the All Items tab.
The other options on this window are used to define the type of resource. Both the Mining Sequence and the Resource Capacity options will affect the items that are displayed in the schedule setup tree for this resource.
The mining sequence option is used to determine the order in which the resource schedules source material. The mining sequence can be set to either of the following:
| • | Input Path For a resource in which an Input Path is specified for the mining sequence, you must provide a list of records to define the extraction of the source material. This list of records is called an Input Path. XPAC attempts to follow this Input Path, however due to various factors this may not be always be possible. |
| • | AutoScheduler This option will only be available if you have an XPAC AutoScheduler licence. For a resource in which the AutoScheduler is specified for the mining sequence, you must provide the schedule objectives, constraints and rules about the extraction of the source material by the resource. XPAC uses this information to determine a mining sequence that meets the specified requirements. |
In each of the above cases, the actual mining sequence that is followed by XPAC in the schedule is referred to as the Output Path.
The resource capacity defines the rate at which the material is transferred from the source to the destination. There are two methods for specifying the capacity of the resource within each schedule period. They are as follows:
| • | Production Rate The capacity of the resource is defined by an hourly production rate and the hours that are available for production. The production rate may be varied for different activities that the resource schedules and for different source material. It may also be varied over time. Resource hours are built up from their base components, namely the shift roster, roster exceptions, period delays, availability and utilisation. |
| • | Target The capacity of the resource is defined by a single quantitative target for each schedule period. The resource can schedule different activities, however their quantitative units must be the same. |
The table at the bottom of the window contains a list of all productive activities that are active for the current scenario. You can restrict each resource so that it only has access to certain activities. This is done by placing a tick against those activities that you want the resource to schedule. The activities that are not ticked will not be available to the resource. Click in the Active column to add or remove a tick for an activity.
For each activity that can be scheduled by the resource, you will also need to specify an Accumulation Field. This is a reference to a data field in the Main database and it is used to determine how long the resource will take to schedule each source record.
When you first create a resource, the Accumulation Field will be set to None. To select a data field, click on the cell and then click again to open the drop down list. Note that the Accumulation Field must be an additive field type, so only additive field types will be displayed in the drop down list. Note also that the Accumulation Field must have the same activity number as the productive activity to which it is assigned. Consequently, only data fields with that same activity number will be displayed in the drop down list.
The Production Rate or the Production Target (depending on the type of resource capacity specified) should have the same quantity units as the Accumulation Field. XPAC cannot check this as the unit fields are stored simply as descriptions, so it is up to you to validate the units for these fields.
When the Resource Capacity is set to Production Rate, an extra column appears in the activity table at the bottom of this window. This column is used to store the production rate for each activity that the given resource can schedule.
The Production Rate may be entered in a number of formats, as follows.
| • | A fixed number, eg. 550; |
| • | A reference to a data field in the Main database for the Source record, eg. M(mProd_Wst_Shv2); |
| • | A reference to a data field in the active Calendar database, eg. C(cProd_Cl_FEL); |
| • | A reference to a data field in the Main database for the Destination record, eg. D(mDest_ProdFact); or |
| • | A combination of any of the above, written as an expression, eg. 500 * C(cSeas_Fact) * M(mBlck_Fact) * D(mDest_ProdFact). |
Note that when a data field value for the Destination record is used, the data field full row code is still prefixed with an 'm'.
Since the Production Rate can be sourced from either the Main database or a Calendar database, it is not possible to provide a drop down list on these cells.
The Production Rate should have the same quantity units as the Accumulation Field. XPAC cannot check this as the unit fields are stored simply as descriptions, so it is up to you to validate the units for these fields.