Rockwell Automation Publication 1769-UM022C-EN-P - June 2018 65
Chapter 5
Communicate Over Networks
All Compact GuardLogix® 5370 controllers support these tasks over an
EtherNet/IP network:
• Control distributed I/O for both safety and standard connections
• Send/receive messages to/from other devices on the same network or
another network
• Produce/consume (interlock) data between controllers
• Socket interface
Compact GuardLogix 5370 controllers support these tasks over a DeviceNet
network:
• Control distributed I/O only for standard connections
• Send messages to devices on the same network; the controller cannot
receive messages from other devices on the network.
All Compact GuardLogix 5370 controllers also support temporary
connections from your computer via a USB connection.
The Safety Network
The CIP Safety protocol is an end-node to end-node safety protocol that
allows routing of CIP Safety messages to and from CIP Safety devices through
bridges, switches, and routers.
To maintain high integrity when routing through standard bridges, switches, or
routers, each end node within a routable CIP Safety Control System must have
a unique reference. This unique reference is a combination of a safety network
number (SNN) and the node address of the network device.
Topic Page
The Safety Network 65
EtherNet/IP Network Communication 72
DeviceNet Network Communication 79