Rockwell Automation 1794-Lxxxx PhaseManager - Manual (Page 31)

Publication LOGIX-UM001B-EN-P - April 2010 31
Guidelines Chapter 3
Equipment Code Guidelines One advantage of an equipment phase is that it lets you separate the
procedures (recipes) for how to make the product from the control of the
equipment that makes the product. This makes it much easier to execute
different procedures for different products using the same equipment.
Equipment Phase
Directs the actions of the
equipment (what to do and
when)
• produce product
• stop producing product
• add water to a tank
• wait for the operator to do
Equipment Program
Does the actions for a specific
group of devices (does it)
• jog axis
• run pump
• open valve
• calculate control variable
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
To start the equipment, the equipment
phase gives the equipment program a start
command, a set point, and so forth.
The equipment program sends back
information such as current state, total, and
so forth.
The equipment program controls the
equipment.