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process instruction

Production Planning for Process Industries (PP-PI)

Structure used to transfer data or instructions from PP-PI to process control.

Process instructions are allocated to the phases of the master recipe and the process order. They are combined in a control recipe and transferred to process control for execution. Depending on the type of information sent, there are the following types of process instructions:

• Process parameters

• Process data requests

• Process message subscriptions

• Process data calculation formulas

• Inspection data requests

• Dynamic function calls

• Sequence definitions