Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual - Manual (Page 65)

Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013 65
Configuring the I/O Chapter 4
When using Datalinks, up to 8 [Data In xx] parameters and/or up to 8
[Data Out xx] parameters must be assigned to point to the appropriate
device parameters for your application.
7. After setting the information in the device’s New Module screen, click OK.
The Module Properties screen appears.
8. Click the Connection tab.
9. In the ‘Requested Packet Interval (RPI)’ box, set the value to 5.0 ms or
greater.
This value determines the maximum interval that a controller should use
to move data to and from the adapter. To conserve bandwidth, use
higher values for communicating with low priority devices. For this
example, leave the ‘Inhibit Module’ and ‘Major Fault …’ boxes
unchecked.
10. Click OK.
The new node (‘My_PowerFlex_70_EC_Drive’ in this example) now
appears under the bridge (‘My_EtherNet_IP_Bridge’ in this example) in
the I/O Configuration folder. If you double-click the Controller Tags,
you will see that module-defined data types and tags have been
automatically created (
Figure 11 ). After you save and download the
configuration, these tags allow you to access the Input and Output data
of the drive via the controller’s ladder logic.
For this example, all Datalinks (A, B, C, and D) are enabled. The Input
Size is set to 12 words and the Output Size is set to 10 words. Also, the
following adapter I/O parameters are set to the following values.
11. Reset the adapter (see Resetting the Adapter on page 43 ) or power cycle
the device.
Adapter Parameter No. Setting
25 - [DPI I/O Cfg] xxxx xxxx xxx1 1111
37 - [M-S Input] xxxx xxxx xxx1 1111
38 - [M-S Output] xxxx xxxx xxx1 1111