Rockwell Automation 193/592-EC1/EC3/EC5 E3 and E3 Plus Solid-State Overload Relay - Quick Reference - Manual (Page 17)

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Publication 193-QR003B-EN-P - October 2009
DeviceNet Node Commissioning
Overview
E3 Overload Relays are shipped with a default software node address (MAC ID) setting of 63
and the data rate set to Autobaud. Each device on a DeviceNet network must have a unique
node address which can be set to a value from 0…63.
Keep in mind, most DeviceNet systems use address 0 for the master device (scanner) and
node address 63 should be left vacant for introduction of new slave devices. The node
address and data rate for series B or later, E3 Overload Relays can be changed using software
or by setting the hardware switches that reside on the front of each unit. While both methods
yield the same result, it is good practice to choose one method and deploy it throughout the
system.
IMPORTANT
The following recommendations are intended to ensure a trouble-free
startup and operation:
1. Use the node commissioning tool in RSNetWorx or the
DeviceNet configuration terminal (cat. no. 193-DNCT) when
modifying the E3 node address. Do not use the General tab found
in the product window in RSNetWorx. The node commissioning
tool ensures the device goes through a hard reset and requires
the user to upload the most current parameter information from
the device prior to making configuration changes.
2. Ensure you have the most current configuration information
prior to saving an RSNetWorx configuration file.
3. If you intend to employ the ADR function of the DeviceNet
scanner, ensure the device configuration is as you intend it
BEFORE saving it to memory.
4. Be aware the Restore Device Defaults button in RSNetWorx will
reset the E3 Overload Relay node address setting to 63. For
Series B or later devices, the hardware node address switches take
precedence over the software node address setting.