Rockwell Automation 20-750-CNETC PowerFlex Coaxial ControlNet Option Module User Manual
Page 27
Rockwell Automation Publication 750COM-UM003B-EN-P - November 2012
27
Configuring the Option Module
Chapter 3
When using a ControlLogix controller and the Generic Profile—or a PLC-5 or
SLC 500 controller, configure the Datalink parameters now as described in this
section.
Host Parameters 01 - [DL From Net 01] through 16 - [DL From Net 16]
configure which parameters in the drive, option module, or any other connected
peripheral receive the values from the network. You can use the PowerFlex 20-
HIM-A6 or 20-HIM-C6S HIM, or another drive configuration tool such as
Connected Components Workbench, DriveExplorer, or DriveExecutive software
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:
From Net Parameter Value = (10000 * port number) + (Destination Parameter Number)
For example, suppose you want to use
Host Parameter 01 - [DL From Net 01] to
write to Parameter 03 of an optional encoder module plugged into drive Port 5.
Using the formula, the value for
Host Parameter 01 - [DL From Net 01] would
be (10000 * 5) + (3) = 50003.
Follow these steps to enable Datalinks to write data.
1.
Set the values of only the required number of contiguous controller-to-
drive Datalinks needed to write data to 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 31
.
3.
Since the Logic Command and Reference is always used in the option
module, configure the parameters in the drive to accept the Logic
Command and Reference from the option module.
When using the controller for speed reference via the option module, set
two fields in drive Parameter 545 - [Speed Ref A Sel].
a. Set the Port field for the drive (for example, 0 - PowerFlex 755).
b. Set the Parameter field to point to the port in which the option module
is installed (for this example, Port 4 Reference).
Also, verify that the mask parameters in the drive (for example,
Parameter 324 - [Logic Mask]) are configured to receive the desired
logic from the option module. See the drive documentation for details.
IMPORTANT
Always use the Datalink parameters in consecutive numerical order, starting
with the first parameter. For example, use Host 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 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
Add the Drive/Option Module to the I/O Configuration on
).