Introduction

This section describes the specifics of the LL984 Editor referring to modifying LL984 segment properties.

For standard features please refer to Accessing Sections.

Protection

The Protection property is not available at the moment.

Localization

You can only attach LL984 segments to a functional module and not LL984 networks. The networks of a segment are implicitly attached to the functional module of their segment.

You can attach an LL984 segment to a functional module either in the Localization tab of its properties dialog or in the Project Browser via drag-and-drop from the Structural View to the Functional View.

You can detach an LL984 segment from a functional module either in the Localization tab of its properties dialog or by selecting Detach from the segment´s context menu.

Condition

You can modify the Condition of an LL984 segment in the Condition tab of its properties dialog.

When you configure a boolean variable in this tab, the state of this variable is checked at the beginning of the LL984 segment's code execution.

When the variable´s state is 0, the segment and all its networks are not executed.

When the variable´s state is 1 or when no condition variable is defined for the segment, it depends on the condition variables of the networks whether the networks are executed or not.

Remote I/O

You can synchronize the Remote I/Os of an LL984 segment in the Remote I/O tab of its properties dialog.

Here you can configure which Remote Quantum drop is read before and which one is written after execution of the LL984 segment.

Drops which are not yet configured are displayed in red inside the list box.

Not configured drops can be selected here, but when they are not configured before next Build, the build will not be successful and a diagnostic message will be displayed.

NOTE: This property is only available for Quantum projects.

Comment

You can enter a comment to an LL984 segment in the Comment tab of its properties dialog.

The maximum size of a comment is 1024 characters.

The LL984 Subroutine Segment

You can only have 1 LL984 segment under the SR sections node of the MAST task.

The properties dialog of this LL984 subroutine segment only provides the General and the Comments tabs.

The Is called check book in the General tab is greyed and not checked.

This is done because in LL984, subroutines can be called via a memory word and so you only know at run time whether a subroutine is called or not.

You can not define a condition variable for the LL984 subroutine segment.