Communication Modules
CompactLogix Communication Modules OverviewYou can configure your system for information exchange between a range of devices and computing platforms and operating systems. Select a CompactLogix controller with integrated communication or the appropriate communication device for the networks that meet your needs.
Networks
| If your application requires | Use this network | 1769-L23x controller | 1769-L3x controller | 1768-L4x and -L4xS controllers |
| • Plant management • Configuration, data collection, and control on a single, high-speed network • Time-critical applications with no established schedule • Data sent regularly • Internet/Intranet connection |
EtherNet/IP network | • 1769-L23E-QB1B controller • 1769-L23E-QBFC1B controller |
• 1769-L32E controller • 1769-L35E controller |
• 1768-ENBT scanner • 1768-EWEB interface |
| • Deterministic and repeatable data delivery • Redundant media • Intrinsic safety • Internet/Intranet connection |
ControlNet network | Not available | • 1769-L32C controller (nonredundant media) • 1769-L35CR controller (redundant media) |
• 1768-CNB scanner (nonredundant media) • 1768-CNBR scanner (redundant media) |
| • 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 | • 1769-SDN scanner • 1769-ADN adapter |
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| • Modems • Supervisory control and data AC quisition (SCADA) • Manipulate ASCII data |
Serial network | • Built-in serial port on the controller • 1769-ASCII module |
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| • Connections to existing DH-485 networks | DH-485 network | Built-in serial port with a 1761-NET-AIC | ||
Environmentals and Certifications
CompactLogix Communication Modules Environmental Specifications
| CompactLogix Communication Modules | |
| Operating Temperature | 0…60 °C (32…140 °F) |
| Storage temperature |
-40…85 °C (-40…185 °F) |
| Relative Humidity | 5…95% noncondensing |
| Vibration | 5 g at 10…500 Hz |
| Operating Shock | 30 g |
| Nonoperating Shock | 50 g |
CompactLogix Communication Modules Certifications
Certifications: c-UL-us, CE, C-Tick.
EtherNet/IP modules - Ex, ODVA-EtherNet/IP.
DeviceNet modules - ODVA.
ControlNet modules - CI.
When product is marked. See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details.
EtherNet/IP Network
The Ethernet Industrial network protocol (EtherNet/IP) 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 Interface Specifications
Specifications [PDF]
| Cat. No. | Description | TCP/IP Connections | Logix Connections | Communication Rate |
| 1768-ENBT | 1768 EtherNet/IP communication bridge module | 64 | 128 | 10/100 Mbps |
| 1768-EWEB | 1768 Ethernet web server module | |||
| 1769-L32E | 1769 modular CompactLogix controller with integrated EtherNet/IP port | 32 | 32 | |
| 1769-L35E | ||||
| 1769-L23E-QB1B | 1769 packaged CompactLogix controller with integrated EtherNet/IP port | 8 | ||
| 1769-L23E-QBFC1B | ||||
| Certifications: c-UL-us (Class I, Division 2, Group A, B, C, D), CE, C-Tick. See the Product Certifications link at http://ab.com for Declarations of Conformity, Certifications, and other certifications details. ⋆ The 1768-L4x and -L4xS controllers support a maximum of two 1768 communication modules per controller. |
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Select an EtherNet/IP Interface
Select the appropriate controller and EtherNet/IP interface depending on the application and how the controller interacts with the devices.
| If your application | Select for a 1769-L23x controller | Select for a 1769-L3x controller | Select for a 1768-L4x or -L4xS controller |
| • Controls I/O modules • Requires an adapter for distributed I/O on EtherNet/IP links • Communicates with other EtherNet/IP devices (messages) • Bridges EtherNet/IP links to route messages to devices on other networks |
1769-L23E-QB1B or 1769-L23E-QBFC1B controller with integrated EtherNet/IP port | 1769-L32E or 1769-L35E controller with integrated EtherNet/IP port | 1768-ENBT communication bridge module |
| • Requires remote access via an internet browser to tags in a local chassis • Supports custom Web pages • Bridges EtherNet/IP links to route messages to devices on other networks |
— | — | 1768-EWEB web server mocule |
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 |
Example 1769-L23E EtherNet/IP Configuration
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Example 1769-L32E, -L35E EtherNet/IP Configuration
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Example 1768-L4x, -L4xS EtherNet/IP Configuration
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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 Interface Specifications
Specifications [PDF]
| Cat. No. | Description | Logix Connections | Number of Nodes | Communication Rate |
| 1768-CNB | 1768 CompactLogix ControlNet communication bridge module, single media | 48 | 99 | 5 Mbps |
| 1768-CNBR | 1768 CompactLogix ControlNet communication bridge module, redundant media | |||
| 1769-L32C | 1769 modular CompactLogix controller with integrated ControlNet port, single media | 32 | ||
| 1769-L35CR | 1769 modular CompactLogix controller with integrated ControlNet port, redundant media | |||
| Certifications: c-UL-us (Class I, Division 2, Group A, B, C, D), CE, C-Tick See the Product Certifications link at http://ab.com for Declarations of Conformity, Certifications, and other certifications details. |
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Select a ControlNet Interface
Select the appropriate controller and ControlNet interface depending on the application and how the controller interacts with the devices.
| If your application uses | Select for a 1769-L3x controller | Select for a 1768-L4x or -L4xS controller |
| Single media | 1769-L32C controller with integrated ControlNet port | 1768-CNB scanner module |
| Redundant media | 1769-L35CR controller with integrated ControlNet port | 1768-CNBR scanner module |
Accessories—ControlNet Network
| Cat. No. | Description |
| Taps | |
| 1786-TPR | T-tap right angle |
| 1786-TPS | T-tap straight |
| 1786-TPYR | Y-tap right angle |
| 1786-TPYS | Y-tap straight |
| Cables | |
| 1786-CP | Programming cable to ControlNet RJ45 port |
| 1786-RG6 | ControlNet network, shield high flex cable |
| 1756-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 |
Example 1769-L32C, 1769-L35CR ControlNet Configuration
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Example 1768-L4x, 1768-L4xS ControlNet Configuration
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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 PLC 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 Interface Specifications
Specifications [PDF]
| Cat. No. | Description | Communication Rate | Number of Nodes |
| 1769-SDN | CompactLogix DeviceNet Scanner Module | 125k Kbps 250k Kbps 500k Kbps |
64 |
| 1769-ADN | CompactLogix DeviceNet Adapter Module | ||
| Certifications: c-UL-us (Class I, Division 2, Group A, B, C, D), CE, C-Tick See the Product Certifications link at http://ab.com for Declarations of Conformity, Certifications, and other certifications details. |
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Select a DeviceNet Interface
The 1769-ADN and 1769-SDN communication modules interface with all CompactLogix controllers.
| If your application | Select |
| • Communicates with other DeviceNet devices (I/O and messages) • Requires explicit messaging • Uses the controller as a master or slave • Uses the controller serial port for other communication • Requires higher performance than the 1761-NET-DNI interface |
1769-SDN DeviceNet scanner |
| • Uses any CompactLogix controller • Accesses as many as 30 remote Compact I/O modules • Sends remote I/O data back to a scanner or controller |
1769-ADN DeviceNet adapter |
Accessories—DeviceNet Network
| 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. |
For more information on selecting DeviceNet media, see the NetLinx Selection Guide, publication NETS-SG001.
Example 1769-L23x DeviceNet Configuration
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Example 1769-L3x DeviceNet Configuration
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Example 1768-L4x, -L4xS DeviceNet Configuration
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Serial Network
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.
| Use this DF1 mode | For |
| Point-to-point | Communication between a controller and other DF1-compatible devices using DF1 full-duplex protocol. |
| DF1 radio modem | SCADA applications where controllers exchange data via radio transmission. |
| DF1 master | Control of polling and message transmission between the master and each slave using DF1 half-duplex polled protocol. |
| DF1 slave | Using the controller as a slave station in a master/slave serial network using DF1 half-duplex protocol. |
| User mode (ASCII) | Communication between a controller and an ASCII device, such as a bar code reader. |
Select a Serial Port Interface
The controller you choose determines the number of serial ports that are available.
| If you need | Identified as | With this protocol | Select this controller |
| One serial port | Channel 0 (fully isolated) | DF1, DH-485, ASCII | 1768-L43, 1768-L45 1768-L43S, 1768-L45S 1769-L35CR, 1769-L32C 1769-L35E, 1769-L32E 1769-L23E-QB1B, 1769-L23E-QBFC1B |
| Two serial ports | Channel 0 (fully isolated) Channel 1 (non-isolated) |
Channel 0: DF1, DH-485, ASCII Channel 1: DF1, DH-485 |
1769-L31 1769-L23-QBFC1B |
If you connect the controller to a non-isolated port (channel 1) on the controller to a computer, modem, or ASCII device, install an isolator (such as the 1761-NET-AIC interface converter) between the controller and the end device.
Example Serial Configuration
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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.
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.
Accessories—DH-485 Network
| Cat. No. | Description | Specifications |
| 1747-CP3 | 9-pin D-shell, straight to 9-pin D-shell, right angle | 3 m (9.8 ft) |
| 1761-CBL-AC00 | 9-pin D-shell, right angle to 9-pin D-shell, right angle | 45 cm (17.7 in.) |
| 1761-CBL-AP00 | 9-pin D-shell, right angle to 8-pin mini-DIN | 45 cm (17.7 in.) |
| 1761-CBL-PM02 | 9-pin D-shell, straight to 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 | Advanced Interface Converter (AIC+) connects each channel on the 1756-DH485 module to the DH-485 network |
| 9300-RADKIT | Remote access dial-in kit | 56 Kbps modem connection to devices on a DH+ network, includes the following: • Pre-configured modem • Communication module • DIN rail mounting hardware • Associated cables |
Example DH-485 Configuration
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