Example ladder logic program information, Functions of the example programs, Logic command/status words – Rockwell Automation 20G PowerFlex 755 Drive Embedded EtherNet/IP Adapter User Manual
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Rockwell Automation Publication 750COM-UM001E-EN-P - October 2013
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Using the I/O
Chapter 5
drive, the drive does not allow a reset to defaults, configuration download, or
anything else that could change the makeup of the I/O connection in a running
system. The I/O connection with the controller must first be disabled to allow
changes to the respective Datalinks.
Depending on the controller being used, the I/O connection can be disabled by
doing the following:
•
Inhibiting the module in RSLogix 5000 software
•
Putting the controller in Program mode
•
Placing the scanner in idle mode
•
Disconnecting the drive from the network
DeviceLogix Datalinks are also locked while the DeviceLogix program is
running. The DeviceLogix program must first be disabled to allow changes to the
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
When using the drive Add-on Profile, the controller tags for Reference and
Feedback to Datalinks are automatically and properly formatted.
If a Generic Profile is used, 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,
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