Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual - Manual (Page 2)

2 Rockwell Automation Publication 20COMM-UM015 B-EN-P - June 2013
Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety
Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from
your local Rockwell Automation sales office or online at
http://www.rockwellautomation.com/literature ) describes
some important differences between solid state equipment and hard-wired electromechanical devices. Because of this
difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying
this equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting
from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables
and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility
or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc. is prohibited.
Throughout this manual, when necessary we use notes to make you aware of safety considerations.
Important: Identifies information that is critical for successful application and understanding of the product.
Allen-Bradley, Rockwell Software, and TechConnect are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
WARNING: Identifies information about practices or circumstances that can
cause an explosion in a hazardous environment, which may lead to personal
injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can
lead to personal injury or death, property damage, or economic loss. Attentions
help you identify a hazard, avoid a hazard, and recognize the consequences.
Shock Hazard labels may be located on or inside the equipment (e.g.,
drive or motor) to alert people that dangerous voltage may be present.
Burn Hazard labels may be located on or inside the equipment (e.g.,
drive or motor) to alert people that surfaces may be at dangerous
temperatures.