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Defining a golden CIP

Description

By defining a golden CIP per CIP process type you can set a reference for analysis. All processes will be compared to this selected golden CIP and a score can be computed. Golden CIP is not mandatory but can be benefical for the analysis of CIP processes. A golden CIP can be defined by selecting a process in the process table and clicking the star icon.

Procedure

  1. Navigate to a CIP dashboard on a specific asset
  2. Select "All" or a specific CIP process (if available) and click on the star icon.

Change of golden CIP

If a golden CIP has been selected and changed afterwards all calculations need to be recalculated. This recalculation is done automatically but can take some time.

Score Calculation

A score value describes how far the actual value differs from the target value given by the golden cip. The value is always between 0 and 100. With 100 being an exact match and 0 meaning that the actual value is further than 1 target value from the target value away. The calculation is based on the following scores:

  1. Overall Score
    The overall score is the average of the time score and the part scores.

  2. Time Score
    To create the time score the duration of the cip is compared with the duration of the golden cip.

  3. Part Scores
    The trend of the cip is compared to the trend of the golden cip. The comparison is based on the sinner's circle and consists of the following four components:

    1. Temperature
    2. Concentration
    3. flow rate For the comparison trend values with a resolution of one minute are used.

  4. Additional Scores
    For each additional parameter a single additional score is being calculated. This is done by calculating a single value for the whole cip sequence. This value is than compared with value from the golden CIP.

When sequence scoring is used a single score is calculated for the whole time frame. For the time score the sequence time is compared, for trends the whole trend is compared at once. When step scoring is used the sequence is divided into multiple steps. And each step is score individually and from these scores the final score will then be calculated, with each step having the same importance. The benefit of this method is that each step in the cip is only compared to the corresponding step in the golden cip. This leads to a higher accuracy in the score calculation.