Sequence Parameters Control table columns
This table describes the columns in the Sequence Parameters Control list. The Parameters Control list includes all the step tags and sequence parameters in an
Equipment Sequence
. Use the
Filter
setting to limit the types of tags and parameters that are included in the list. Select the column headers to sort the list alphabetically to group similar tags and parameters.Column | Description |
|---|---|
Name | The name of the step tag or sequencing parameter. |
Usage | The usage type of the step tag or sequencing parameter. Usage types include Step input and Step output for step tags, and Input and Output for sequencing parameters. |
Value | The current value of the step tag or sequencing parameter. Values can be edited when the External Access for the tag or parameter is set to Read/Write . Use the Tag Editor in the Logix Designer application to change the external value for a tag or parameter. Sequence Parameters control validates the value so it is within the configured Min and Max range. |
Initial Value | The initial value of the step tag or sequencing parameter. This value is assigned to the Value field when the Equipment Sequence is initialized. Initialization occurs when the Equipment Sequence is commanded to START, RESET, or both. Step tag and sequencing parameter initial values are editable. Sequence Parameters control validates the value so it is within the configured Min and Max range. |
Initialize as Valid | Indicates whether the step output tag or sequencing output parameter value is valid or invalid on initialization of the Equipment Sequence . |
Expression | Defines an expression that is evaluated to a value for step input tags and sequencing output parameters. |
Data Type | Displays the data type of the step tag or sequencing parameter. Data types for step tags and sequencing parameters include SEQ_DINT, SEQ_SINT, SEQ_INT, SEQ_REAL, SEQ_BOOL, and SEQ_STRING. |
Description | Displays the text entered to describe the tag or parameter. Description text is optional and can be blank. |
Engineering Unit | Displays the text entered to describe the engineering unit. |
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