Model 200
The downtime detection models are the logic that determines when the line is running and when downtime is occurring. It also can translate available signals from the control system into fault values and associate reasons.
Model 200 compares the value of the Input Tag to the Running Value. If the tag is equal to the Running Value, the line is considered running. If it is not equal to the Running Value, then it is considered down. If the line is determined to be down, the value of the Input Tag can be used to lookup the fault in the fault list and associate reasons.
The information from the PT:ProdRateTag property and the Prod Rate Conv Info property is stored in the Timed_Event-Details table in Production_Event.
The functionality in this model is available only if you have purchased the Efficiency Module.
Model 200 Properties
The following Model properties are set up using the Plant Applications Administrator:
|
Property |
Description |
|
Maximum Run Time (Seconds) |
optional: Type the number of seconds you want the model to run. The default is 0 (zero), which means the model will not time out. Typically, you will want to limit the run time of the model only if troubleshooting the model (for example, one of the stored procedures is in an infinite loop). |
|
Model Processing Group |
Used for multithreading. See the Multithreading topic for more information. |
|
PT:Delay Tag |
The value of this tag determines the current fault. If the value of the tag is equal to the Running Value, then the equipment is considered to be running. If the value of the tag is not equal to the Running Value, the value of the tag is used to look up the fault in the fault list. |
|
Running Value |
The value of this tag indicates that the equipment is running. All other values create downtime. |
|
PT:ProdRateTag |
Select the historian tag that indicates your production rate, such as bottles per day. |
|
Prod Rate Conv. Info |
Enter the value that will convert your production rate into minutes. For example, if you production rate is "per day", then enter "1440." |
|
Minimum Delay Time (Secs) |
The value of this tag indicates the minimum length of downtime event to log. Downtime events that last only "n" seconds are ignored. |