GuardLink 2.0 is designed to offer advanced diagnostics by way of the Allen-Bradley 432ES GuardLink EtherNet/IP On-Machine Interface or a combination of the Dual GuardLink Relay and EtherNet/IP Interface. GuardLink 2.0 protocol also enables safety-rated control device status reporting and automatic diagnostic reporting to an HMI using CIP Safety over EtherNet/IP. The 432ES GuardLink EtherNet/IP interface is designed to connect up to 96 safety devices via three independent safety channels. The interface can cascade power to additional interfaces and can keep track of timing and frequency of events to improve maintenance and create process efficiencies. The 432ES supports linear, star and Device Level Ring topologies while meeting the highest safety ratings up to SIL 3, Cat 4 PLe.
Rockwell Automation / www.rockwellautomation.com