Use

The main advantage of universal process instructions over process instructions of type 1 to 7 is that they support the functions of all the other process instruction types. In a PI sheet, you can, for example, display control information, use process messages to report actual process data, or use dynamic function calls to make calculations and jump to other applications.

In process instruction of type 1 to 7, you must, however, create a process instruction of the appropriate type for each of these function. For example, a process instruction of Type 1: process parameter can only display information, a process instruction of Type 2: process data request can only record entries, a process instruction of Type 4: process data calculation formula can only perform calculations, and a process instruction of Type 6: dynamic function call can only execute function calls.

You can now define all these function in only one universal process instruction of type 0.

Prerequisites

You can only use universal process instructions of type 0 to control recipes that are sent to control recipe destinations of type 4. This means that the control recipe sent to the control recipe destination of type 4 is displayed on the screen as a browser-based PI sheet .

Features

Optional Message Creation

When you use process instructions of Type 2: process data request and Type 4: process data calculation formula , you need to specify which message category was to be used to report the value entered or calculated. This means that you need to report all entered or calculated values even if they are irrelevant.

In universal process instructions, you can now specify for each process instruction whether you want the system to create a process message. The system only creates process messages if the characteristic PPPI_MESSAGE_CATEGORY is contained in the process instruction. It then reports all message characteristics, that is, even those that do not belong to the message category specified.

Using universal process instructions, you can now report any characteristic, such as results from function calls, in one process instruction of type 0.

Functions

The universal process instruction category supports the following functions:

Structure of Universal Process Instructions

To define universal process instructions correctly, the characteristics must be defined in a certain order in the process instruction. For more information, see Type 0: Structure of Universal Process Instructions .