Features

• Multiple communication modules in a single ControlLogix® backplane can bridge or route data between different networks
• Lets you route a message through a maximum of four chassis (eight communication hops)
• Does not require a ControlLogix controller in the chassis

Products

1756 EtherNet/IP™ Communication Interfaces:

• 128 Logix connections (1756-ENBT and 1756-EWEB) or 256 Logix connections (all other modules)
• Embedded switch technology (1756-EN2TR and 1756-EN3TR)
• Extreme environment support via ControlLogix-XT™ communication module (1756-EN2TXT)

1756 DeviceNet™ Communication Interfaces

• Supports 64 nodes

1756 ControlNet™ Communication Interfaces

• 64 Logix connections (1756-CNB and 1756-CNBR) or 128 Logix connections (all other modules)
• Supports 99 nodes
• Supports redundant media (1756-CN2R, 1756-CNBR and 1756-CN2RXT)
• Extreme environment support via ControlLogix-XT communication module (1756-CN2RXT)

1756 Data Highway Plus™ and Remote I/O Communication Interfaces

• 32 Logix connections (1756-DHRIO and 1756-DHRIOXT)
• Data Highway Plus and Remote I/O module (1756-DHRIO) supports messaging between devices on DH+™ network
• Remote I/O module (1756-RIO) acts as scanner or adapter on a remote I/O network
• Extreme environment support via ControlLogix-XT communication module (1756-DHRIOXT)

1757 FOUNDATION Fieldbus Linking Devices

• Bridges from either an Ethernet network or a ControlNet network
• 16 devices per H1 link (8...10 devices recommended)
• 32 devices (1757-FFLD2 and 1757-FFLDC2) or 64 devices (1757-FFLD4 and 1757-FFLDC4) per linking device

1756 DH-485 Communication Interfaces

• Function through the serial port on the ControLogix controller
• Remote programming and monitoring via RSLogix™ 5000 programming software

1756 SynchLink™ Communication Interfaces

• Time-synchronization and data broadcasting for distributed motion and coordinated drive control
• Moves a limited amount of data from one chassis to another at high speed
• Lets one controller consume motion axes data from a controller in another chassis

Certifications

• All Modules: c-UL-us, CE, CSA, C-Tick, FM, ATEX, TÜV
• EtherNet/IP Modules: ODVA-EtherNet/IP
• DeviceNet Modules: ODVA
• ControlNet Modules: CI
• FOUNDATION Fieldbus Modules: FF