User manual

26 Publication 1756-RM093F-EN-P - January 2010

Chapter 2 GuardLogix Controller System

Communication Bridges

These communication interface modules are available to facilitate

communication over Ethernet/IP, DeviceNet, and ControlNet networks

via the CIP Safety protocol.

EtherNet/IP Network

Peer-to-peer safety communication between GuardLogix controllers is

possible via the EtherNet/IP network through the use of 1756-ENBT,

1756-EN2T, or 1768-ENBT bridge modules. An EtherNet/IP bridge

module lets the GuardLogix controller control and exchange safety

data with CIP Safety I/O modules on an EtherNet/IP network.

Peer-to-peer Communication via 1756-ENBT Modules and the EtherNet/IP Network

GuardLogix System Communication Modules

1756 • 1756-ENBT, 1756-EN2T, or 1756-EN2F EtherNet/IP bridge

module

• 1734-AENT POINT I/O Ethernet Adapter

• 1756-DNB DeviceNet bridge module

• 1756-CN2 ControlNet bridge module

• 1756-CN2R Redundant ControlNet bridge module

1768 • 1768-ENBT

• 1734-AENT POINT I/O Ethernet Adapter

• 1768-CNB

• 1768-CNBR

IMPORTANT

Due to the design of the CIP Safety control system, CIP safety

bridge devices, like those listed in the table, are not required to

be SIL 3-certified.

1768-PB3

1768-L43S

1768-ENBT

1769-ECR

1756-L62S

1756-LSP

1756-DNB

1756-ENBT

Controller A

Controller B

Ethernet Switch

CIP Safety I/O Module

DeviceNet Network

EtherNet/IP

Network

EtherNet/IP

Network

CIP Safety I/O Module