Selecting master-slave or peer-to-peer hierarchy, Setting a master-slave hierarchy – 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
Chapter 3
Configuring the Adapter
2.
Reset the adapter by power cycling the drive or by using the HIM’s Reset
Device function located in the drive’s DIAGNOSTIC folder.
Selecting Master-Slave or
Peer-to-Peer Hierarchy
This procedure is only required if Datalinks are used to write or read data of the
drive or its connected peripherals. A hierarchy determines the type of device with
which the adapter exchanges data. In a Master-Slave hierarchy, the adapter
exchanges data with a master, such as a scanner or bridge. In a Peer-to-Peer
hierarchy, the adapter exchanges data with embedded EtherNet/IP adapters in
other PowerFlex 755 drives.
For both Master-Slave and Peer-to-Peer hierarchies, the devices exchanging data
must be on the same IP subnet. See ‘IP Addresses’ in the
for information
about IP subnets.
Setting a Master-Slave Hierarchy
Enable Datalinks To Write Data
The controller output image (controller outputs-to-drive) can have 0 to 16
additional 32-bit parameters (Datalinks). They are configured using Parameters
01 - [DL From Net 01]
through 16 - [DL From Net 16]. The number of
Datalinks actively used is controlled by the connection size in the controller. See
the respective controller example sections in
for more information on
setting the connection size.
When using a ControlLogix controller and the Generic Profile, configure the
Datalink parameters now as described in this section.
Parameters 01 - [DL From Net 01]
through 16 - [DL From Net 16] control
which parameters in the drive, embedded adapter, or any other connected
TIP
Auto detection of baud rate and duplex works properly only if the
device (usually a switch) on the other end of the cable is also set to
automatically detect the baud rate/duplex. If one device has the baud
rate/duplex hard-coded, the other device must be hard-coded to the
same settings.
IMPORTANT
Always use the Datalink parameters in consecutive numerical order, starting
with the first parameter. For example, use Parameters 01, 02, and 03 to
configure three Datalinks to write data. Otherwise, the network I/O connection
will be larger than necessary, which needlessly increases controller response
time and memory usage.
TIP
When using a ControlLogix controller and an RSLogix 5000 drive Add-on
Profile, version 16.00 or later, there is no need to configure Datalink
parameters at this time. They will be assigned when configuring the RSLogix
5000 drive Add-on Profile (see