Communication Modules

Click to enlarge - 1756-ENET Module_GS


ControlLogix Communication Modules Overview

Separate communication modules are available for different networks. Install multiple communication modules into the ControlLogix backplane to bridge or route control and information data between different networks. You can route a message through a maximum of four chassis (eight communication hops). You do not need a ControlLogix controller in the chassis.

ControlLogix-XT communication modules for extreme environments are available for EtherNet/IP, ControlNet, and Data Highway Plus and Remote I/O networks.


Networks

If your application requires Use this network
• Plant management (material handling)
• Configuration, data collection, and control on a single, high-speed network
• Time-critical applications with no established schedule
• Inclusion of commercial technologies (such as video over IP)
• Internet/Intranet connection
EtherNet/IP network
• High-speed transfer of time-critical data between controllers and I/O devices
• Deterministic and repeatable data delivery
• Media redundancy
• Intrinsic safety
• Redundant controller systems
ControlNet network
• Connections of low-level devices directly to plant floor controllers, without interfacing them through I/O modules
• Data sent as needed
• More diagnostics for improved data collection and fault detection
• Less wiring and reduced start-up time than a traditional, hard-wired system
DeviceNet network
• Plant-wide and cell-level data sharing with program maintenance
• Data sent regularly
• Transfer of information between controllers
Data Highway Plus network
• Connections between controllers and I/O adapters
• Data sent regularly
• Distributed control so that each controller has its own I/O and communicates with a supervisory controller
Remote I/O network
• Modems
• Supervisory control and data acquisition (SCADA)
Serial network
Connections to existing DH-485 networks DH-485 network
SynchLink fiber-optic communication to:
• controllers.
• power distribution systems.
• PowerFlex 700S drives.
SynchLink network
  

Environmentals and Certifications

ControlLogix Communication Modules Environmental Specifications

  ControlLogix Communication Modules ControlLogix-XT Communication Modules 1757 Foundation Fieldbus Modules
Operating Temperature 0…60 °C (32…140 °F) -25…70 °C (-13…158 °F) 0…60 °C (32…140 °)
Storage temperature
-40…85 °C (-40…185 °F) -40…85 °C (-40…185 °F) -40…85 °C (-40…185 °F)
Relative Humidity 5…95% noncondensing 5…95% noncondensing 5…95% noncondensing
Vibration 2 g at 10…500 Hz 2 g at 10…500 Hz 5 g at 10…500 Hz
Operating Shock 30 g 30 g 15 g
Nonoperating Shock 50 g 50 g 30 g

ControlLogix Communication Modules Certifications

Certifications: (When product is marked.) 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.

See the Product Certifications link at ab.rockwellautomation.com/ for Declarations of Conformity, Certificates, and other certification details. For TÜV and SIL certification details, see the Safety Certificates and SIL link.


EtherNet/IP Network

The Ethernet Industrial (EtherNet/IP) network protocol is an open industrial-networking standard that supports both real-time I/O messaging and message exchange. The EtherNet/IP network uses off-the-shelf Ethernet communication chips and physical media.

EtherNet/IP Communication Modules

Specifications [PDF]

Cat. No. Description Media Special Features Communication Rate CIP Motion Axes TCP/IP Connections Logix Connections
1756-EN2F EtherNet/IP communication bridge module Fiber 100 Mbps Up to 8 128 256
1756-EN2T EtherNet/IP communication bridge module Copper 10/100 Mbps Up to 8 128 256
1756-EN2TK EtherNet/IP conformal coated communication bridge module Copper 10/100 Mbps Up to 8 128 256
1756-EN2TSC EtherNet/IP secure communication bridge module Copper IPSec VPN Client and Server Technology 100/100 Mbps Up to 8 128 256
1756-EN2TR 2-port EtherNet/IP communication bridge module, with embedded switch technology Dual Copper Embedded switch technology 10/100 Mbps Up to 8 128 256
1756-EN2TRK 2-port EtherNet/IP conformal coated communication bridge module Dual Copper Embedded switch technology 10/100 Mbps Up to 8 128 256
1756-EN3TR 2-port EtherNet/IP communication bridge module, with embedded switch technology Dual Copper Embedded switch technology 10/100 Mbps Up to 128 128 256
1756-ENBT EtherNet/IP communication bridge module Copper 10/100 Mbps 64 128
1756-ENBTK EtherNet/IP conformal coated communication bridge module Copper 10/100 Mbps 64 128
1756-EWEB EtherNet web server module Copper Web Server 10/100 Mbps 64 128
1756-EN2TXT ControlLogix-XT, EtherNet/IP communication bridge module rated for extreme environment Copper Extreme Environment 10/100 Mbps Up to 8 128 256
1756-EN2TRXT ControlLogix-XT, EtherNet/IP communication bridge module, with embedded switch technology for extreme environment Dual Copper Embedded switch technology Extreme environment 10/100 Mbps Up to 8 axes 128 256
  

EtherNet/IP Time Synchronization Module

The 1756-TIME module contains an onboard GPS receiver to provide the accuracy of GPS satellite atomic clocks. It hosts dual Ethernet ports for direct Ethernet time synchronization using NTP (Network Time Protocol) and PTP (Precision Time Protocol) where the module acts as the time grandmaster.

Cat. No. Description Features
1756-TIME ControlLogix Time Synchronization Module Internal GPS Receiver, PTP - Precision Time Protocol, NTP - Network Time Protocol, IRIG-B Input / Output, Dual Port Ethernet - Embedded Switch, DLR - Device Level Ring, Web Interface, AOP - Add-On Profile
  

Example Configurations—EtherNet/IP Network

Star Topology

Click to enlarge - Enet_Star_topology_BW


Ring Topology

Click to enlarge - Enet_ring topology_BW


Linear Topology

Click to enlarge - Enet_linear topology_BW


Accessories—Ethernet Network

Cat. No. Description Specifications
1585J-M8PBJM-x Ethernet RJ45 patchcord
x = 2 (2 m), 5 (5 m) or 10 (10 m)
8-Conductor, Teal Riser PVC Cable (Flex Rated cable also available)
1585J-M8CC-H RJ45 insulation displacement connector (IDC) 0.128...0.325 mm2 (26…22 AWG), Cat. 6, IDC, no tool required
1585J-M8CC-C RJ45 crimp connector with boot, qty = 50 pieces 0.128...0.205 mm2 (26…24 AWG), Cat. 5e, requires crimp tool for assembly
1585A-Jcrimp Crimp tool
9300-RADES Remote access dial-in kit 56 Kbps modem connection to devices on an Ethernet network, includes:
• pre-configured modem
• communication module
• DIN rail mounting hardware
• associated cables
  

Switches

For real-time control and information flow throughout the manufacturing and IT enterprise, we offer a full portfolio of industrial Ethernet switches and media, featuring a line of managed switches integrated with Cisco technology. Our Stratix switch products portfolio offers many popular features used by IT and controls organizations that deploy standard, unmodified Ethernet, with settings optimized for use in EtherNet/IP applications. In addition, Embedded Switch Technology is available in various Rockwell Automation products to enable ring and linear topologies.

Click to enlarge - 1756-CNB Module_GS


ControlNet Network

The ControlNet network is an open, control network for real-time, high-throughput applications. The ControlNet network uses the Common Industrial Protocol (CIP) to combine the functionality of an I/O network and a peer-to-peer network providing high-speed performance for both functions. The ControlNet network gives you deterministic, repeatable transfers of all mission-critical control data in addition to supporting transfers of non-time-critical data. I/O updates and controller-to-controller interlocking always take precedence over program uploads and downloads and messaging.

ControlNet Communication Modules

Specifications [PDF]

Cat. No. Description Logix Connections Communication Rate Number of Nodes
1756-CN2 ControlNet communication bridge module, standard media 100 5 Mbps 99
1756-CN2R ControlNet communication bridge module, redundant media
1756-CNB ControlNet communication bridge module, standard media 40…48
1756-CNBK ControlNet conformal coated bridge module, standard media
1756-CNBR ControlNet communication bridge module, redundant media
1756-CNBRK ControlNet conformal coated bridge module, redundant media
1756-CN2RXT ControlLogix-XT, ControlNet communication bridge module, redundant media 100
  

Example Configuration—ControlNet Network

Click to enlarge - 1756-CNB Config_BW


Example Configuration—Redundant ControlNet Media

Redundant ControlNet media requires these components:


Click to enlarge - 1756 Redundant Media_BW


Accessories—ControlNet Network

Cat. No. Description
Taps
1786-TPR ControlNet T-tap right angle
1786-TPS ControlNet T-tap straight
1786-TPYR ControlNet Y-tap right angle
1786-TPYS ControlNet Y-tap straight
Cables
1786-CP Programming cable to ControlNet RJ45 port
1786-RG6 ControlNet network, shielded high flex cable
1786-RG6F ControlNet network, quad shield high flex coax cable
Other
1786-XT ControlNet termination resistor
Repeaters
1786-RPA ControlNet modular repeater adapter
1786-RPCD ControlNet coaxial hub repeater
1786-RPFRL ControlNet fiber ring repeater, long
1786-RPFRXL ControlNet fiber ring repeater, extra long
1786-RPFS ControlNet fiber ring repeater, short
1786-RPFM ControlNet fiber ring repeater, medium

DeviceNet Network

The DeviceNet network is an open, low-level network that provides connections between simple industrial devices (such as sensors and actuators) and higher-level devices (such as controllers and computers). The DeviceNet network uses the proven Common Industrial Protocol (CIP) to provide the control, configure, and data collection capabilities for industrial devices.

DeviceNet Communication Module

Specifications [PDF]

Cat. No. Description Communication Rate Number of Nodes
1756-DNB DeviceNet communication bridge module 125 Kbps (500 m max)
250 Kbps (250 m max)
500 Kbps (100 m max)
64
  

Example Configuration—DeviceNet Network

Click to enlarge - 1756-DNB Config_BW


Accessories—DeviceNet Network

For more information on selecting DeviceNet media, see the NetLinx Selection Guide, publication NETS-SG001.

Cat. No. Description
KwikLink Lite flat media KwikLink Lite flat media is a newer, ODVA-approved solution for wiring DeviceNet networks. Drop-lines for connecting nodes are added by using the KwikLink Lite two-piece connectors. This cable system supports the intermixing of DeviceNet cable types (thin-round with flat). All of the KwikLink Lite connectors provide insulation displacement technology with reduced assembly time.
KwikLink flat media The KwikLink flat media system provides a modular cabling method with its flat 4-wire cable and Insulation Displacement Connectors (IDCs). The KwikLink system allows nodes to be added to the network without severing the trunkline. Cutting or stripping of the trunkline is eliminated, as is the need for predetermined cable lengths.
Round media Round trunk cable is available in bulk spools or as pre-molded cordsets or patchcords in varying lengths. A wide variety of rugged, durable DeviceNet components is available for use in round trunk systems. Stainless steel versions of round cable system components are also available.
• Thick trunk round media systems use thick cable for maximum DeviceNet trunk line length.
• Round media thin trunk systems use thin cable to reduce maximum trunk line distances with a more compact and cost-effective installation for some applications. Thin cable outer jacket material is TPE for additional chemical resistance.

Click to enlarge - 1756-DHRIO Module_GS


Data Highway Plus and Remote I/O Networks

The Data Highway Plus (DH+) network supports messaging between devices. The remote I/O link connects to remote I/O chassis and other intelligent devices.

The 1756-DHRIO module supports messaging between devices on DH+ networks. The Remote I/O functionality enables the module to act as a scanner for transferring digital and block-transfer data to and from remote I/O devices.

The 1756-RIO module can act as a scanner or adapter on a Remote I/O (RIO) network. In addition to digital and block-transfer data, the 1756-RIO module transfers analog and specialty data without message instructions.


Data Highway Plus and Remote I/O Communication Modules

Specifications [PDF]

Cat. No. Description Communication Rate DH+ Connections RIO Connections Logix Connections
1756-DHRIO Data Highway Plus/Remote I/O communication module DH+: 57.6 Kbps
RIO: 57.6 Kbps, 115.2 Kbps, 230.4 Kbps
32 DH+ messages per DH+ channel 32 logical rack connections per remote I/O channel
16 block-transfer connections per remote I/O channel
32
1756-RIO Remote I/O communication module RIO: 57.6 Kbps, 115.2 Kbps, 230.4 Kbps 32 physical racks (0...76), any combination of rack size and block transfers 10 scheduled I/O
1756-DHRIOXT ControlLogix-XT, Data Highway Plus/Remote I/O communication module DH+: 57.6 Kbps
RIO: 57.6 Kbps, 115.2 Kbps, 230.4 Kbps
32 DH+ messages per DH+ channel 32 logical rack connections per remote I/O channel
16 block-transfer connections per remote I/O channel
32

Example Configuration—Data Highway Plus Network

Click to enlarge - 1756-DHRIO DH+ Config_BW


Example Configuration—Remote I/O Network

Click to enlarge - 1756-DHRIO URIO Config_BW


Accessories—DH+ and Remote I/O Networks

Cat. No. Description Specifications
1770-CD Cable to connect communication module to DH+ network Belden 9463 twinaxial
9300-RADKIT Remote access dial-in kit 56 Kbps modem connection to devices on a DH+ network, includes:
• pre-configured modem
• communication module
• DIN rail mounting hardware
• associated cables

Serial Communication

The controller serial port is compatible with RS-232 serial communication. The serial port supports the DF1 protocol to communicate with other devices on the serial link.

Specifications [PDF]

Example Configuration—Serial Communication

Click to enlarge - 1756 Serial Config_BW


Modbus Support

To use Logix5000 controllers on Modbus, you connect through the serial port and execute a specific ladder logic routine. The controller project is available with RSLogix 5000 Enterprise programming software. For more information, see Using Logix5000 Controllers as Masters or Slaves on Modbus Application Solution, publication CIG-AP129.

Accessories—Serial Communication

  1756-CP3 1747-CP3
Connector Type Female 9-pin D-shell
Connector angle Right angle connector to controller, straight to serial port
Length 3 m (118 in.)

DH-485 Network

The controller serial port is compatible with DH-485 communication. The DH-485 connection does support remote programming and monitoring via RSLogix 5000 software.

DH-485 Communication Module

Specifications [PDF]

Cat. No. Description Communication Rate
1756-DH485 DH-485 communication bridge module 19.2 Kbps
9600 Kbps
  

Example Configuration—DH-485 Network

Click to enlarge - 1756 via DH485 Config_BW


Accessories—DH-485 Network

Cat. No. Description Specifications
1747-CP3 9-pin D-shell, straight ; 9-pin D-shell, right angle 3 m (9.8 ft)
1761-CBL-AC00 9-pin D-shell, right angle; 9-pin D-shell, right angle 45 cm (17.7 in.)
1761-CBL-AP00 9-pin D-shell, right angle; 8-pin mini-DIN 45 cm (17.7 in.)
1761-CBL-PM02 9-pin D-shell, straight; 8-pin mini-DIN 2 m (6.5 ft)
1761-NET-AIC Advanced Interface Converter (AIC+) connects each channel on the 1756-DH485 module to the DH-485 network • 20.4…28.8V DC power source required
• typical 120 mA 24V DC current draw
9300-RADKIT Remote access dial-in kit 56 Kbps modem connection to devices on a DH+ network, includes:
• pre-configured modem
• communication module
• DIN rail mounting hardware
• associated cables

SynchLink Communication

The SynchLink module provides time synchronization and data broadcasting capabilities for distributed motion and coordinated drive control. The 1756-SYNCH SynchLink module connects a ControlLogix chassis to a SynchLink fiber-optic communication link. The module:


SynchLink Communication Module

Specifications [PDF]

Cat. No. Description Communication Rate
1756-SYNCH SynchLink communication bridge module 5 Mbps
  

Example Configuration—1756-SYNCH Star Topology


Click to enlarge - 1756-SYNCH Star Config_BW


Example Configuration—1756-SYNCH Daisy-chain Topology

Click to enlarge - 1756-SYNCH Daisy Config_BW



Example Configuration—1756-SYNCH Ring Topology


Click to enlarge - 1756-SYNCH Ring Config_BW


Accessories—SynchLink Network

Cat. No. Description
1403-CFxxx Fiber optic cable assembly (Rockwell Automation)
HCP-M0200T V01RK Lucent Technologies 200 mm simplex cable