Catalogs > Automation Systems Catalog > Programmable Controllers > FlexLogix System > Networks
Networks
| Introduction |  |
Available Networks | |
EtherNet/IP Network | |
ControlNet Network | |
DeviceNet Network | |
Serial Communication | |
DH-485 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
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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. |
DeviceNet Interface Specifications
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| Cat. No. | Communication Rate | Connections | Cable | Power Dissipation, Max. | Backplane Current @ 5.1V |
| 1788-DNBO | Requires 2 connections to a dedicated controller (for status and I/O) | 5-pin DeviceNet cable provided with the card | 1.3 W | 450 mA | |
| Certifications: UL, CSA (Class I, Division 2, Group A, B, C, D), CE, FM, C-Tick. | |||||
Typical DeviceNet Configuration
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Backup Systems via a DeviceNet Network
FlexLogix backup relies on the ability to have shared DeviceNet mastership of slave I/O devices. The heartbeat communications between the primary and secondary controllers determines which 1788-DNBO scanner is the master and which scanner is in standby.
Requires:
- RSLogix 5000 software must be at version 10 or later and FlexLogix firmware must be at revision 10 or later.
- The primary controller and the secondary controller each need their own 1788-DNBO scanner. The 178-DNBO firmware must be at revision 2.x or later.
- The DeviceNet network should be set up with both the primary and secondary 1788-DNBO node addresses set to 0.
- All the I/O and operator interface devices that require backup must be on the DeviceNet network.
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