Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual - Manual (Page 193)

Rockwell Automation Publication 193-UM002I-EN-P - December 2011 193
Chapter
10
Logic Controller Communication Examples
Introduction The E3 Overload Relay communicates its diagnostic information through a
DeviceNet network using I/O Messaging or Explicit Messaging. The E3
Overload Relay will control its output relays via a DeviceNet network through
the use of I/O Messaging. This chapter will show an example of I/O Messaging
and four examples of Explicit Messaging including the Parameter Object, the
Control Supervisory Object, the Overload Object, and the E3 Status Object.
The examples will use a CompactLogix L32E via a 1769-SDN DeviceNet
scanner module named DNET. The applications shown are example-specific.
Some changes by the user may be necessary to apply the concepts of these
examples to a specific application.
Figure 2: Network Example
I/O Messaging For this example, a CompactLogix L32E will energize OUT A on an E3 Plus
Overload Relay using DeviceNet I/O Messaging. The E3 Plus 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
E3 Plus, and store this information to the following memory locations within the
CompactLogix L32E as shown: