Definition of Default Values

Use

If a planned or target value is available for an input value, you can enter the planned or target value as a default value in the process instruction.

The system displays the default value together with the allowed values in the PI sheet when you call the possible entries for the input value. Unlike the other values, the default value is already selected.

If you enter a value for a process instruction with several input values, the default values of the other input values are copied to the fields.

Features

You enter a default value in the process instruction as follows:

As a constant value if it has already been specified in the process order
As a variable if it is only available in the PI sheet

Constant default value

To define a constant default value in the process instruction, you assign the following characteristic before the input value:

Characteristic

Meaning

Value

Message characteristic that has been defined as an input value

Constant default value

According to characteristic definition,

also automatically (see below)

To assign a characteristic value, you can use the following options:

You can enter the required default value manually.
If the value has been entered elsewhere in the process order, you can transfer it to the process instruction by automatic value assignment when you create the control recipe. However, you can only use this option, if the settings required for automatic value assignment are made for the message characteristic in Customizing; see Process Instructions: Automatic Characteristic Value Assignment .

Example Example

Message category PI_PROD is allocated to a process data request. The following characteristics have been maintained in the process instruction for the input value Product quantity .

End of the example.

Number	Characteristics	Value
0070	PPPI_INPUT_REQUEST	Product quantity:
0080	PPPI_MATERIAL_PRODUCED
0090	PPPI_REQUESTED_VALUE	PPPI_MATERIAL_PRODUCED
0100	PPPI_UNIT_OF_MEASURE

Characteristic PPPI_MATERIAL_PRODUCED is defined as an input value in number 0090. In number 0080, this characteristic is used to define a constant default value for the input value. Since the planned order quantity is automatically assigned as the characteristic value, the planned value is proposed in the PI sheet.

Variable as a Default Value

Using a variable, you can copy the default value of a preceding process instruction of the same process order.

To define a variable as a default value in the process instruction, you assign the following characteristic before the input value:

Characteristic	Meaning	Value
PPPI_DEFAULT_VARIABLE	Variable as default value	Variable name

For more detailed information, see Using Text Symbols in Process Instructions .