Allen-Bradley 1756-L63XT, User Manual

Page: 169 / 212

Rockwell Automation Publication 1756-UM001O-EN-P - October 2014 169
Chapter
11
Using the PhaseManager Tool
PhaseManager Overview The PhaseManager™ tool lets you add equipment phases to your controller. An
equipment phase helps you lay out your code in sections that are easier to write,
find, follow, and change.
Topic Page
PhaseManager Overview 169
Minimum System Requirements 171
State Model Overview 171
PhaseManager Tool versus Other State Models 174
Equipment Phase Instructions 174
Table 40 - PhaseManager Terminology
Term Description
Equipment phase • As with a program, an equipment phase is run in a task and is given a set of routines and
tags.
• Unlike a program, an equipment phase runs by a state model and lets you do one activity.
State model • A state model divides the operating cycle of your equipment into a series of states. Each
state is an instance in the operation of the equipment, the actions, or conditions of the
equipment at a given time.
• The state model of an equipment phase resembles that of the S88 and Pack ML state
models.
State machine An equipment phase includes an embedded state machine that does the following:
• Calls the routine that is associated with an active state
• Manages the transitions between states with minimal coding
• Makes sure that the equipment goes from state to state along an allowable path
PHASE tag When you add an equipment phase, the application creates a tag for the equipment phase.
The tag uses the PHASE data type.