
230 Rockwell Automation Publication IASIMP-QS034A-EN-P - October 2012
Appendix A Logic Program Overview
Machine/Application/Device Module Relationship
The machine module monitors the current state of the overall machine and based on the state and/or requests
from the HMI terminal, broadcasts commands to both the application and device modules. The individual
modules perform a predefined task based on the command. Some of the commands may be ignored depending
on the module type.
Machine Module
Application
Modules
Device
Modules
Machine
Commands
Application
Status
Device
Commands
Device
Status
HMI Application
Controller Logic
Machine Faceplate
Device Faceplates
PanelView Plus Terminal
Operator
Commands
Machine Status
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