Allen-Bradley PowerFlex 20-COMM-D, User Manual

Page: 28 / 149

3-8 Configuring the Adapter
The I/O configuration determines the type of data sent to the drive. Logic
Command/Status, Reference/Feedback, and Datalinks may be enabled
or disabled. A “1” enables the I/O. A “0” disables it.
1. Set the bits in Parameter 13 - [DPI I/O Config] :
Figure 3.7 I/O Configuration Screen on an LCD HIM
Bit 0 is the right-most bit. In Figure 3.7 , it is highlighted and equals
“1.”
2. Set a Master-Slave or Peer-to-Peer hierarchy. Refer to the Selecting
Master-Slave or Peer-to-Peer section in this chapter.
3. If you enabled Logic Command/Reference, configure the parameters
in the drive to accept the logic and Reference from the adapter. For
example, set
Parameter 90 - [Speed Ref A Sel] in a PowerFlex 70
or 700 drive to “DPI Port 5” so that the drive uses the Reference
from the adapter. Also, verify that the mask parameters (for example,
Parameter 276 - [Logic Mask] ) in the drive are configured to
receive the desired logic from the adapter.
4. If you enabled one or more Datalinks, configure parameters in the
drive to determine the source and destination of data in the
Datalink(s). Also, ensure that the DeviceNet adapter is the only
adapter using the enabled Datalink(s).
5. Reset the adapter. Refer to the Resetting the Adapter section in this
chapter.
A hierarchy determines the type of device with which the adapter
exchanges data. In a Master-Slave hierarchy, an adapter exchanges data
with a scanner. In a Peer-to-Peer hierarchy, an adapter can exchange data
with one or more DeviceNet adapter(s) connected to PowerFlex drives
that have similar data structures.
Setting the I/O Configuration
Bit Description
0 Logic Command/Reference (Default)
1 Datalink A
2 Datalink B
3 Datalink C
4 Datalink D
5 - 15 Not Used
Port 5 Device
20-COMM-D
Parameter #: 13
DPI I/O Config
x x x x x x x x x x x 0 0 0 0
1
Cmd/Ref b00
Selecting Master-Slave or Peer-to-Peer