Installation Instructions ControlNet Modules Catalog Numbers 1756-CN2, 1756-CN2R, 1756-CN2RK, 1756-CN2RXT, 1756-CNB, 1756-CNBR, 1768-CNB, 1768-CNBR
Important User Information Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.
Summary of Changes This manual contains new and updated information. Changes throughout this revision are marked by change bars, as shown to the right of this paragraph. New and Updated Information This table contains the changes made to this revision.
Summary of Changes Notes: 4 Rockwell Automation Publication CNET-IN005C-EN-P - July 2014
Table of Contents Preface Studio 5000 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Chapter 1 Install a 1756 ControlNet Communication Module ControlLogix-XT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ControlLogix-XT with Traditional ControlLogix Components. . Redundant Media . . . . . . . . .
Table of Contents Appendix A 1756 ControlNet Status Indicators Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interpret the OK Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interpret the Network Channel Status Indicators . . . . . . . . . . . . . . . 1756-CN2, 1756-CN2R, 1756-CN2RXT, and 1756-CN2RK ControlNet Communication Modules. . . . . . . . . . . . . . . OK Status Indicator and Display. . . . . . . . . . . .
Preface This manual describes how to install and start up ControlNet modules with Logix5000 ™ controllers.
Preface Additional Resources These documents contain additional information concerning related products from Rockwell Automation. Resource Description ControlNet Network Configuration User Manual, publication CNET-UM001 Provides details about how to use ControlNet communication modules with Logix5000 controllers and communicate with other devices on the ControlNet network.
Chapter 1 Install a 1756 ControlNet Communication Module Topic Page ControlLogix-XT Systems 11 Redundant Media 12 Installation Summary 12 Determine Module Slot Location 12 Set the Node Address 13 Install the Module 14 Connect the Module to a ControlNet Network 15 Remove the Module 17 Install the EDS File and Get Firmware Updates 19 Connect a Programming Terminal to the Network with a 1786-CP Cable 20 Connect to the Module via the USB Port 21 ATTENTION: Environment and Enclosure Th
Chapter 1 Install a 1756 ControlNet Communication Module North American Hazardous Location Approval The following information applies when operating this equipment in hazardous locations. Informations sur l’utilisation de cet équipement en environnements dangereux. Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only.
Install a 1756 ControlNet Communication Module Chapter 1 ATTENTION: Prevent Electrostatic Discharge This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. • Wear an approved grounding wriststrap. • Do not touch connectors or pins on component boards. • Do not touch circuit components inside the equipment.
Chapter 1 Install a 1756 ControlNet Communication Module Redundant Media These 1756 ControlNet bridge modules have two ControlNet ports to support redundant media: • 1756-CN2R • 1756-CNBR • 1756-CN2R • 1756-CN2RXT • 1756-CN2RK For information about using these modules with redundant media, see Redundant Media on page 33. Installation Summary To install a communication module in a 1756 ControlLogix chassis, complete these steps. 1. Determine Module Slot Location. 2. Set the Node Address. 3.
Install a 1756 ControlNet Communication Module Chapter 1 This example shows chassis slot numbering in a ControlLogix-XT chassis. Slot 0 Slot 2 Slot 1 Use a small screwdriver to set the module’s node address switches. You must specify a unique ControlNet node address. You can select an address of 01…99. Address 00 is an invalid ControlNet node address.
Chapter 1 Install a 1756 ControlNet Communication Module Install the Module WARNING: When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector.
Install a 1756 ControlNet Communication Module Connect the Module to a ControlNet Network Chapter 1 You can connect the module to the ControlNet network by using a tap, catalog numbers 1786-TPR, 1786-TPS, 1786-TPYR, 1786-TPYS, or 1786-TCT2BD1. WARNING: If you connect or disconnect the communication cable with power applied to this module or any device on the network, an electrical arc can occur. This could cause an explosion in hazardous location installations.
Chapter 1 Install a 1756 ControlNet Communication Module To connect the module to the network with a tap, perform this procedure. 1. Remove and save the dust caps from the ControlNet taps. ATTENTION: Do not allow any metal portions of the tap to contact any conductive material. If you disconnect the tap from the module, place the dust cap back on the straight or right-angle connector to prevent the connector from accidentally contacting a metallic grounded surface.
Install a 1756 ControlNet Communication Module Remove the Module Chapter 1 You can install or remove this module while chassis power is applied. WARNING: When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector.
Chapter 1 Install a 1756 ControlNet Communication Module Reset the Module to the Original Factory Settings If you are using a 1756-CN2, 1756-CN2R, 1756-CN2RXT or 1756-CN2RK communication module, you can reset the module to its original settings and clear all keeper information. To reset a module to its factory settings, complete these steps. 1. Remove power from the chassis.
Install a 1756 ControlNet Communication Module Install the EDS File and Get Firmware Updates Chapter 1 For the 1756-CN2, 1756-CN2R, 1756-CN2RXT, and 1756-CN2RK modules, the EDS file can be uploaded directly from the module. This feature lets you register the EDS file for your module from within RSLinx software. Use the steps below to register the EDS file from within RSLinx software. 1. Open RSLinx software and browse for the module.
Chapter 1 Install a 1756 ControlNet Communication Module The Available Downloads window opens. 7. From the bulleted list, choose the firmware name. The End User License Agreement opens. 8. Review the agreement and click I Agree. The Rockwell Automation Download Manager opens and the download begins. The location of the downloaded file is shown under the progress bar. 9. When the downloaded is complete, click Close. 10. Locate the downloaded .zip file and extract it to a temporary directory. 11.
Install a 1756 ControlNet Communication Module Chapter 1 1756-CNBR/E 1770-KFC 1786-CP Cable Serial or Parallel Connections ControlNet Link The 1786-CP cable can be plugged into any ControlNet network product’s NAP to provide programming capability on the ControlNet network. A programming terminal connected through this cable is counted as a node and must have a unique network address. ATTENTION: Use a 1786-CP cable when connecting a programming terminal to the network through an NAP.
Chapter 1 Install a 1756 ControlNet Communication Module The USB port on ControlNet modules uses a Type B receptacle. The port is USB 1.1-compatible and runs at 12 Mbps. See Table 7 - RSLinx Software Versions on page 47 for more information about using the correct version of RSLinx software. Use a USB cable to connect your computer to the USB port. The connection lets you download programs to controllers and configure other devices, which are accessible by the module, directly from your computer.
Chapter 2 Install a 1768 ControlNet Communication Module Topic Page Redundant Media 25 Installation Summary 25 Set the Node Address 25 Install the Module 26 Connect the Module to a ControlNet Network 28 Remove the Module 29 Install the EDS File and Get Firmware Updates 31 ATTENTION: Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562
Chapter 2 Install a 1768 ControlNet Communication Module North American Hazardous Location Approval The following information applies when operating this equipment in hazardous locations. Informations sur l’utilisation de cet équipement en environnements dangereux. Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only.
Install a 1768 ControlNet Communication Module Chapter 2 Redundant Media The 1768-CNBR bridge module has two ControlNet ports to support redundant media. For information about using the module with redundant media, see Redundant Media on page 33. Installation Summary To install a communication module in a 1768 ControlLogix chassis, complete these steps. 1. Set the Node Address. 2. Install the Module. 3. Connect the Module to a ControlNet Network.
Chapter 2 Install a 1768 ControlNet Communication Module Install the Module To install the module, follow this procedure. If You Use Screws to Mount the Module IMPORTANT Do not use screws and DIN rail to mount the module. It is possible to break off the mounting tabs if you screw the module to the panel while they are on DIN rail. The instructions show how to mount the module on DIN rail. If you are using screws instead of DIN rail, make these changes to the instructions.
Install a 1768 ControlNet Communication Module Chapter 2 Mount on a DIN Rail Follow these steps to install the module on a DIN rail. 1. Mount the DIN rail in a suitable location. ATTENTION: This product is grounded through the DIN rail to chassis ground. Use zinc-plated yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials (for example, aluminum or plastic) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent grounding.
Chapter 2 Install a 1768 ControlNet Communication Module Connect the Module to a ControlNet Network You can connect the module to the ControlNet network by using a tap (catalog number 1786-TPR, 1786-TPS, 1786-TPYR, 1786-TPYS, or 1786-TCT2BD1) or a network access cable (catalog number 1786-CP). See the ControlNet Coax Media Planning and Installation Guide, publication CNET-IN002, for additional information.
Install a 1768 ControlNet Communication Module Chapter 2 2. Connect the tap’s straight or right-angle connector to the module’s BNC connector. If your network supports Connect the tap’s connector Nonredundant media (1768-CNx modules) From trunkline A to channel A on the module. Redundant media (1768-CNBR modules) • From trunkline A to channel A on the 1768-CNBR module. • From trunkline B to channel B on the 1768-CNBR module.
Chapter 2 Install a 1768 ControlNet Communication Module Remove a module as shown below.
Install a 1768 ControlNet Communication Module Install the EDS File and Get Firmware Updates Chapter 2 For the 1768-CNB and 1768-CNBR modules, the EDS file can be uploaded directly from the module. This feature lets you register the EDS file for your module from within RSLinx software. Use the steps below to register the EDS file from within RSLinx software. 1. Open RSLinx software and browse for the module. 2. Right-click the module and choose Upload EDS file from device. The Upload EDS wizard opens. 3.
Chapter 2 Install a 1768 ControlNet Communication Module The Rockwell Automation Download Manager opens and the download begins. The location of the downloaded file is shown under the progress bar. 9. When the downloaded is complete, click Close. 10. Locate the downloaded .zip file and extract it to a temporary directory. 11. Use the ControlFlash utility to install the firmware.
Chapter 3 Redundant Media Topic Page Use Redundant Media 33 These ControlNet bridge modules support redundant media: • 1756-CN2R • 1756-CN2RK • 1756-CN2RXT • 1756-CNBR/E • 1768-CNBR Use Redundant Media You can run a second trunk cable between ControlNet nodes for redundant media. With redundant media, nodes send signals on separate trunks.
Chapter 3 Redundant Media Figure 1 - Redundant Media Example Trunk Cable A Trunk Cable B Node Node Node To use redundant media, all nodes must support redundant media. Observe these guidelines when planning a redundant media system in a hazardous area: • Route trunk cables A and B differently to reduce the chance of both cables being damaged simultaneously. – Trunk cables A and B may contain different lengths of cable if you are using 1786-RPA/B repeater adapters.
Redundant Media IMPORTANT Chapter 3 We recommend that you do not mix cable connections when using redundant cabling, such as connecting trunk cable A to the B connector on the node. Mixing cable connections makes it difficult to interpret cable fault indications and locate a bad cable segment. When in Redundant Cable mode, each node independently decides whether to use channel A or channel B. This decision is based on error counters internal to each node.
Chapter 3 Redundant Media Figure 2 - Redundant Media System Trunk Cable A Trunk Cable B Terminators Terminators Node Node Repeater B Repeater A Terminators Terminators Power OU T 24Vdc NOMIN AL 120W Node 36 Node Rockwell Automation Publication CNET-IN005C-EN-P - July 2014
Appendix A 1756 ControlNet Status Indicators Topic Page 1756-CN2, 1756-CN2R, 1756-CN2RXT, and 1756-CN2RK ControlNet Communication Modules 38 1756-CNB/E and 1756-CNBR/E ControlNet Communication Modules 43 The 1756 ControlNet communication modules and adapters support these status indicators. Status Indicator Description OK status indicator Indicates the module’s current state. Network channel status indicators Indicates the status of network channels A and B.
Appendix A 1756 ControlNet Status Indicators Interpret the OK Status Indicator IMPORTANT The OK status indicator reflects the module state, such as the running of a selftest, the updating of firmware, and normal operation without an established connection. When you view the status indicators, always view the OK status indicator first to determine the state of the module. This information may help you to interpret the network channel status indicators.
1756 ControlNet Status Indicators Appendix A OK Status Indicator and Display Table 1 - OK Status Indicator and Display Status Display Description Off None The module is not communicating due to a power supply fault or internal fault. Do any of the following: • Check the power supply. • Check the cable connectors. • Make sure the module is firmly seated in the chassis. • If the indicator remains off, replace the module.
Appendix A 1756 ControlNet Status Indicators Table 1 - OK Status Indicator and Display Status Display Description Steady Green OK This is normal operation. There is at least one connection to or through the module. INIT The module is initializing. PASS This message is displayed momentarily upon completion of a successful power-up test. CMPT(1) DSNP Steady green or flashing green Flashing green 40 The secondary module is compatible with its partner.
1756 ControlNet Status Indicators Appendix A Table 1 - OK Status Indicator and Display Status Display Description Any Keeper: Unconfigured The network configuration data maintained in memory by the keeper object has been erased or corrupted. Do any of the following: • Use RSNetWorx software to download or update the keeper object in the module. • Reset the module to the original factory settings, as described on page 14.
Appendix A 1756 ControlNet Status Indicators Network Channel Status Indicators Table 2 - Network Channel Status Indicators A and B Status Description Off There is no power. Steady red Unit has faulted. Cycle power or reset unit. If the fault persists, contact a Rockwell Automation representative or distributor. Alternating red/green A self-test is being conducted. Alternating red/off Node has been configured incorrectly. Check network address and other ControlNet configuration parameters.
1756 ControlNet Status Indicators 1756-CNB/E and 1756-CNBR/E ControlNet Communication Modules Appendix A This section provides the following information about status indicators: • To understand the OK status indicator and display messages, see Table 4. • For information about viewing the network channel status indicators together, see Table 5 on page 46. • For information about viewing the network channel status indicators individually, see Table 6 on page 46.
Appendix A 1756 ControlNet Status Indicators Table 4 - OK Status Indicator and Display (Continued) Status Display Description Steady green OK Normal operation is occurring. At least one connection has been made to or through the module. INIT The module is initializing. BW >MAX The module is receiving too much network traffic and connections are timing out. The network bandwidth has been exceeded. No action is required because this is a temporary condition.
1756 ControlNet Status Indicators Appendix A Table 4 - OK Status Indicator and Display (Continued) Status Steady green or off Display Description (2) SO_1 Old primary switchover phase 1 is in progress. If the display shows this message for more than 3 seconds, then the 1756-CNB/E module failed during transition from one redundancy phase to another. Replace one or both redundancy modules. SO_2(2) Old primary switchover phase 2 is in progress.
Appendix A 1756 ControlNet Status Indicators Network Channel Status Indicators Table 5 - Network Channel Status Indicators A and B Status Description Off There is no power. Steady red The module has faulted. Cycle power to the module. If the fault persists, contact your Rockwell Automation representative or distributor. Alternating red/green The module is undergoing a self-test. Alternating red/off A node was configured incorrectly, or a duplicate ControlNet node address exists.
Appendix B USB Communication The 1756-CN2, 1756-CN2R, 1756-CN2RXT and 1756-CN2RK ControlNet modules support USB communication. Set Up a USB Driver To configure RSLinx software to use a USB port, you need to first set up a USB driver. Before you begin, make sure you have the correct version of RSLinx software. Table 7 - RSLinx Software Versions ControlNet Module Required Version of RSLinx Software 1756-CN2RXT or 1756-CN2RK 2.55 or later 1756-CN2/C or 1756-CN2R/C 2.
Appendix B USB Communication The RSLinx Found New Hardware Wizard dialog box appears. 2. Click Install the software automatically (Recommended), and then click Next. The following dialog boxes appear consecutively. 3. Click Finish to set up your USB driver.
USB Communication Appendix B 4. From the Communications pull-down menu, choose RSWho to view modules in RSLinx software. The RSLinx Workstation organizer appears. Virtual Chassis Driver USB Port Driver Your ControlNet modules appear under two different drivers, a virtual chassis and the USB port. You can use either driver to browse through your ControlNet modules.
Appendix B USB Communication Notes: 50 Rockwell Automation Publication CNET-IN005C-EN-P - July 2014
Appendix C 1768 ControlNet Module Status Indicators Topic Page 1768-CNB and 1768-CNBR ControlNet Modules 51 The 1768 ControlNet communication modules support these status indicators. Status Indicator Description OK status indicator Indicates the module’s current state. Network channel status indicators Indicates the status of network channels A and B.
Appendix C 1768 ControlNet Module Status Indicators OK Status Indicator and Display Table 7 - OK Status Indicator and Display Status Display Description Off None The module is not communicating due to a power supply fault or internal fault. Do any of the following: • Check the power supply. • Check the cable connectors. • Make sure the module is firmly seated in the chassis. • Replace the module if the indicator remains off.
1768 ControlNet Module Status Indicators Appendix C Network Channel Status Indicators The ControlNet network channel-status indicators appear in one of these states: • Steady—The indicator is on continuously in the defined state. • Alternating—The two indicators alternate between the two defined states at the same time (applies to both indicators viewed together). The two indicators are always in opposite states, out of phase.
Appendix C 1768 ControlNet Module Status Indicators Notes: 54 Rockwell Automation Publication CNET-IN005C-EN-P - July 2014
Index Numerics 1756 ControlNet module, installing 9 1756 module download firmware 19, 31 1756 module status indicators 37 1768 ControlNet module, installing 23 1768 module status indicators 51 A additional resources 7 C cable requirements redundant media 33 connect 1756 module to a ControlNet network 15 connect 1768 module to a ControlNet network 28 connect programming terminal to network 20, 28 ControlLogix-XT system 11 ControlNet network, connect the module to 15, 28 ControlNet network, connecting 1756
Index Notes: 56 Rockwell Automation Publication CNET-IN005C-EN-P - July 2014
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