How do I configure the KPI: Overall Equipment Effectiveness?

Start in the Admin app, and select the machine you need. From the KPI panel on the machine page, click on the menu option ‘Configuration’ for Overall Equipment Effectiveness. You will then be taken to the configuration page. Here you need to select appropriate sensors to provide suitable input data for each part of the formula:

OEE = Availability x Performance (= Actual production / Possible production) x Quality

1. Availability. In this panel you select the 'Machine status sensor' to provide data on the current status of your machine. Is it actively running or not? This virtual or physical sensor needs to provide the following values: "0" for "OFF", "1" when the machine is operating normally, "2" if the machine is in failure.

The toggle button below, enables production to be counted during machine downtime. In normal circumstances this setting can remain off. Only turn it on if you usually run production through a machine despite the status sensor providing an 'off' or 'failure' status. This setting can increase the actual machine production and rejection counts for the OEE calculation, but not the amount of maximum machine production. In extreme cases this could cause the actual machine production to exceed the maximum machine production, resulting in a performance exceeding 100%.

But it is also important to consider that if this setting is off, quality defects which occurred when the machine was running, are not submitted via the Operations app whilst the machine is in downtime. If this is done, they will not be considered in the OEE calculation.

For analytical purposes, it is useful to relate a Downtime configuration to this OEE configuration. This has no impact on the OEE calculation itself.

2. Performance For the Performance metric, information needs to be provided about the theoretical and actual performance.

For the Maximum machine rate, this sensor needs to supply data indicating the maximum possible rate at that moment. In food machinery for example this will change depending on the product type which the machine is producing at that moment. You can choose for a rate sensor or a fixed value. In case of the rate sensor you need to setup the time rate as well (second, minute or hour).

For the actual machine rate, this sensor needs to supply data indicating the actual number of products being produced at that moment. You can choose for a rate sensor or a (total) count sensor. In case of the rate sensor you need to setup the time rate as well (second, minute or hour).

3. Quality For the quality metric, a bad rate sensor needs to supply data indicating the number of incorrect products being produced.

4. The thresholds and targets panel allows you to set up cautionary and emergency thresholds. You will then receive a daily notification if the KPI value for the previous 24 hours falls below a target. It works in a very similar way to the threshold function in the sensor settings. The target value is your desired OEE target value.

Once this is done, you have to click save, upon which your KPI will become active.