Quick Start Manual

210 Rockwell Automation Publication IASIMP-QS019E-EN-P - August 2013
Appendix A Logic Program Overview
Machine Control Module Tags
The machine control data type, UDT_MachCtrl, comprises the overall machine control and status, including
the state machine. The user-defined data type consists of these components.
Machine Tags
Tag Group Function
Machine mode
Additional modes can be added to the machine. By default, the modes included are:
• OPERATOR or manual mode
• PROGRAM or auto mode
Machine commands
Broadcast machine commands that direct all of the dependent modules (for example, application
and device modules).
Current machine state Indicates the current state of the overall machine. Only one state can set at even given time.
Previous machine state
Indicates the previous machine state. Used primarily by the application and device modules to
determine Transitional State faults.
Machine state display String tag that can be used to indicate the current machine state.
Machine status Indicates miscellaneous machine status information.
Machine Mode
Machine Commands
Current Machine State
Previous Machine State
Machine State Display
Machine Status