Phase Logic Configuration

In DeltaV Batch, the phase logic is a state transition diagram made up of embedded composites that contain the logic that governs the transition between the states of a phase. The state transition logic is written using Sequential Function Charts (SFCs).

The phase logic incorporates the use of phase logic parameters.

Following are the general steps for creating the phase logic for one of the active states (marked by a composite block) in the phase's state transition diagram:

1. Open the phase class in Control Studio.
2. Drill down into the active state's composite block.

   This can be done in several ways: Select the composite block in the left pane; double-click the state in the diagram; or right-click  the state in the diagram and select Drill Down from the context menu.

3. Use steps (and associated actions), transitions, and terminations to create the SFC.
4. Continue until all logic is defined for each active state.

Once defined, download the phase.