Rockwell Automation 20-750-ENETR PowerFlexDual-Port EtherNet/IP Option Module - Manual (Page 41)

Rockwell Automation Publication 750COM-UM008A-EN-P - July 2012 41
Configuring the Option Module Chapter 3
When using a ControlLogix controller and the Generic Profile, configure the
Datalink parameters now as described in this section.
Host Parameters 17 - [DL To Net 01] through 32 - [DL To Net 16] configure
which parameters in the drive, option module, or any other connected peripheral
send the values to the network. The PowerFlex 20-HIM-A6 or 20-HIM-C6S
HIM, DriveExplorer software, or DriveExecutive software can be used to select
the drive or peripheral by port number and the parameter by name. As an alternate
method, the parameter value can be set manually by number using this formula:
To Net Parameter Value = (10000 * Port Number) + (Origination Parameter Number)
For example, suppose you want to use Host Parameter 17 - [DL To Net 01] to
read Parameter 2 of an optional I/O module plugged into drive Port 6. Using the
formula, the value for
Host Parameter 17 - [DL To Net 01] would be (10000 * 6)
+ (2) = 60002.
Follow these steps to enable Datalinks to read data.
1. Set the values of only the required number of contiguous drive-to-
controller Datalinks needed to read data from the drive and that are to be
included in the network I/O connection.
2. Reset the option module; see Resetting the Option Module on page 49 .
The option module is configured to send output data to the master (controller).
You must now configure the controller to recognize and transmit I/O to the
option module. See
Chapter 4 , Configuring the I/O.
Setting the Option Module to Transmit Peer-to-Peer Data
Peer-to-peer communication can be set up as a simple peer I/O configuration or a
custom peer I/O configuration.
Simple Peer I/O Configuration
The most common use of peer I/O is to take the Logic Command and Reference
from one drive and repeat it over Ethernet to one or more other drives. If scaling
of the Reference is needed to enable drives to run at different but related speeds,
use drive Parameter 609 - [TrmPct RefA Stpt]. The EtherNet/IP option module
provides a simplified configuration method for simple peer I/O.
Follow these steps to set up the master (broadcast) side of simple peer I/O.
IMPORTANT Because of the 32-bit REAL (floating point) Reference, the following method
works only if the drives transmitting and receiving are PowerFlex 750-Series
drives. Peer-to-peer communication only works between drives with a 20-750-
ENETR option module or PowerFlex 755 drives with the embedded EtherNet/IP
adapter.