Rockwell Automation 193-EC4 EC4 Current Monitoring Relay User Manual - Manual (Page 96)

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 97
Chapter
9
Logic Controller Application Example with
Explicit Messaging
Introduction This example demonstrates discrete control of the EC4 Current Monitoring
Relay’s output relay and the use of the explicit messaging function for transferring
parameter data to a CompactLogix L32E via a 1769-SDN DeviceNet scanner
module named DNET. The selections shown are example-specific. Some changes
by the user may be necessary to apply the concepts of this example to a specific
application.
Figure 32 - Network Example
I/O Mapping For this example, a CompactLogix L32E will energize OUT A on an EC4
Current Monitoring Relay using DeviceNet I/O Messaging. The EC4 is
configured as Node 6 on the DeviceNet network. Its Output Assembly is
configured to use Output Assembly 103, and its Input Assembly is configured to
use Input Assembly 100 as shown:
The 1769-SDN was configured to scan I/O from various devices, including the
EC4, and store this information to the following memory locations within the
CompactLogix L32E as shown: