Example ladder logic program information, Functions of the example programs, Logic command/status words – Rockwell Automation 20-750-DNET PowerFlex DeviceNet Option Module User Manual
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Rockwell Automation Publication 750COM-UM002B-EN-P - October 2012
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Using the I/O
Chapter 5
Datalinks. Set DeviceLogix parameter 53 - [DLX Operation] to ‘DisableLogic’
to disable the logic (the parameter value will then change to ‘LogicDisabld’).
Example Ladder Logic
Program Information
The example ladder logic programs in the sections of this chapter are intended for
and operate PowerFlex 750-Series drives.
Functions of the Example Programs
The example programs enable you to do the following:
•
Receive Logic Status information from the drive.
•
Send a Logic Command to control the drive (for example, start, stop).
•
Send a Reference to the drive and receive Feedback from the drive.
•
Send/receive Datalink data to/from the drive.
Logic Command/Status Words
These examples use the Logic Command word and Logic Status word for
PowerFlex 750-Series drives. See
PowerFlex 750-Series Drives to view details.
TIP
A COP (Copy) instruction or a UDDT is needed—for REAL parameters, speed
Reference, and speed Feedback only—to copy the DINT data into a REAL word
for input data conversion. For output data conversion, a COP (Copy) instruction
or UDDT is needed—for REAL parameters, speed Reference, and speed
Feedback only—to copy the REAL data into a DINT word. To determine
whether a parameter is a 32-bit integer (DINT) or a REAL data type, see the
Data Type column in the chapter containing parameters in the PowerFlex 750-
Series AC Drives Programming Manual, publication
.