Rockwell Automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter - Manual (Page 33)

Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013 33
Configuring the Adapter Chapter 3
If the adapter’s ENET2 network port will be used to connect another drive
in a linear or DLR network topology, set the value of
Device parameter
20 [Net Rate Cfg 2] to the appropriate data rate.
2. Reset the adapter; see Resetting the Adapter on page 36 .
Using Master-Slave Hierarchy 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.
Configuring a Master-Slave Hierarchy
The controller I/O image can have anywhere from zero to eight (four In and four
Out) additional 16-bit parameters called Datalinks. They are configured using
Host parameters C161 [Opt Data In 1] through C164 [Opt Data In 4], and
C165 [Opt Data Out 1]
through C168 [Opt Data Out 4]. The number of
Datalinks actively used is controlled by the connection size in the controller and
the in/out parameters. See the respective controller example sections in
Configuring the I/O on page 39 for more information on setting the connection
size.
When using a ControlLogix or CompactLogix controller and the Generic
Profile, or a MicroLogix 1100/1400 controller, configure the Datalink
parameters now as described in this section.
Enabling Datalinks To Write Data
Host parameters C165 [Opt Data Out 1] through C168 [Opt Data Out 4]
control which parameters in the drive send values to the network. To configure
these parameters, set them to the drive parameter number you want to correlate
them to.
The following steps are required to enable Datalinks to write data:
TIP When using a ControlLogix or CompactLogix controller and a drive Add-On
Profile for RSLogix 5000 (version 17 or greater) or Logix Designer (version 21 or
greater) software, there is no need to configure Datalink parameters at this
time. They will be assigned when configuring the drive Add-On Profile (see
Adding the Drive/Adapter to the I/O Configuration on page 42 ).
IMPORTANT Always use the Datalink parameters in consecutive numerical order, starting
with the first parameter. For example, use Host parameters C165, C166, and
C167 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.