Rockwell Automation Guardmaster 440R-ENETR, User Manual

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Rockwell Automation Publication 440R-UM009C-EN-P - July 2019 7
Chapter
1
Product Overview
About the Interface
The Guardmaster EtherNet/IP network interface is catalog number
440R-ENETR (referred to as ‘ENETR interface’ throughout this manual). The
ENETR interface provides connectivity to EtherNet/IP networks from the
Guardmaster safety relays (GSR).
This user manual describes the Series B version of the ENETR interface, which
was released in mid-year 2018.
Two significant differences between the Series A and B interface include:
• Webpage was discontinued to meet Internet security requirements.
• A faster optical bus was added to accommodate the DG relay and
GuardLink® designs.
The ENETR interface communicates to the GSR safety relays over two optical
buses that are on the side of the housing. EtherNet/IP connectivity is provided
through two RJ45 connectors for 2-port pass-through support of daisy chain or
ring, and the existing star and tree network topologies.
Figure 1 on page 9 shows the key features of the ENETR interface and the
locations of the two optical buses. Opto bus 3 communicates with the DG safety
relay. Opto bus 2 communicates with the DI, DIS, EM, EMD, GLP, GLT, and SI
safety relays.
Power Up a System
Each time the interface is powered up, the adapter compares the number of I/O
modules present on its backplane to the chassis size value from nonvolatile
memory. The adapter does not allow I/O connections until the number of I/O
modules present equals the chassis size value minus one for the adapter itself.
On powerup, the interface assigns an address to every Guardmaster safety relay
(up to six) in the backplane. The addressing starts from left to right with the
Guardmaster safety relay to the immediate right of the interface taking the first
address of 1.