Rockwell Automation Allen-Bradley 1756-EN2F User Manual
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Rockwell Automation Allen-Bradley 1756-EN2F User Manual

Controllogix ethernet/ip network devices
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ControlLogix EtherNet/IP
Network Devices
Catalog Numbers 1756-EN2F, 1756-EN2FK, 1756-EN2T,
1756-EN2TK, 1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT,
1756-EN2TR, 1756-EN2TRK, 1756-EN2TXT, 1756-EN2TRXT,
1756-EN3TR, 1756-EN3TRK, 1756-EN4TR, 1756-EN4TRK,
1756-EN4TRXT, 1756-ENBT, 1756-ENBTK, 1756-EWEB
User Manual
Original Instructions

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Summary of Contents for Rockwell Automation Allen-Bradley 1756-EN2F

  • Page 1 ControlLogix EtherNet/IP Network Devices Catalog Numbers 1756-EN2F, 1756-EN2FK, 1756-EN2T, 1756-EN2TK, 1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT, 1756-EN2TR, 1756-EN2TRK, 1756-EN2TXT, 1756-EN2TRXT, 1756-EN3TR, 1756-EN3TRK, 1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT, 1756-ENBT, 1756-ENBTK, 1756-EWEB User Manual Original Instructions...
  • Page 2 If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

  • Page 3: Table Of Contents

    Redundant System Components ....... . . 28 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 4 Index ............67 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 5: Preface

    Updates to 1756-EN4TR Mode Rotary Switch Updates to Redundant Design Considerations Updates to Redundant System Components Updated PRP Architecture with RedBox Switches Added PRP Architecture without RedBox Switches Add new chapter on Security Options Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 6: Additional Resources

    Provides details about how to assign IP addresses to Troubleshoot EtherNet/IP Networks Application and how to troubleshoot EtherNet/IP networks and Technique, publication ENET-AT003 devices. You can view or download publications on Literature Library: rok.auto/ literature. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 7: Overview

    EtherNet/IP™ networks are communication networks that offer a comprehensive suite of messages and services for many automation applications. This open network standard uses commonly available Ethernet communication products to support real-time I/O messaging, information exchange, and general messaging. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 8: Controllogix Network Device Features

    DIGITAL 16 OUTPUT 24 VDC 2 TB3 5094-OW8I RELAY 8 OUTPUT ISOLATED 2 TB3W IP ADDRESS LINK 2 ControlLogix Controller 5094-AENTR POWER 1738-AENTR 1734-AENTR 5094-IB16 1738 I/O Modules 1734 I/O Modules FLEX 5000™ I/O Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 9: Ethernet/Ip Network Specifications

    (1) Includes the K conformal coating catalog numbers and the XT extreme environment catalog numbers. (2) Each controller can send a maximum of 32 multicast produced tags to one single consuming controller. If these same tags are sent to multiple consumers, the maximum number is 31. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 10 (5) This value assumes the use of a 1756-L8x or a 1756-L7x ControlLogix controller. For a 1756-L6x ControlLogix controller, see ControlLogix Controllers User Manual, publication 1756-UM001. (6) CIP Security requires FactoryTalk® Linx version 6.11.00 or later. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 11: Ethernet/Ip Network

    Bridge EtherNet/IP links to route messages to devices on other networks (1) Starting with firmware revision 4.001. (2) Redundant Adapters require version 3.001 and higher firmware. See the Product Compatibility and Download Center (PCDC) for that firmware. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 12: 1756-En4Tr Device Properties Information

    SNMP Passwords for these modules can be changed. For information on how to change the SNMP Password, see the Knowledgebase Technote SNMP Password and MIB Configuration. Disable SNMP To disable SNMP, see Disable/Enable Simple Network Management Protocol (SNMP) on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 13: Electronic Keying

    If an I/O connection to a device is interrupted, the result can be a loss of data. For more detailed information on Electronic Keying, see Electronic Keying in Logix 5000 Control Systems Application Technique, publication LOGIX- AT001. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 14: Protected Mode

    4. Set the switches for normal operation. 5. Power up the device. 6. The device is now in Unprotected Mode. (1) For 1756-EN2F, 1756-EN2T, EN3TR, and 1756-EN2TR Versions 11.001 and later. For 1756-EN2TP and 1756-EN4TR all versions Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 15: Protected Mode In A Redundant Adapter Pair

    3. Force a switchover either using AOP service or disconnect the cable. 4. Remove secondary (previous primary) device, put it in non-protected mode and insert module back. The system has disabled explicit protected mode. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 16: How To Determine If The Module Is In Explicit Protected Mode

    Instance = 1 • Attribute = 13(Hex) The Destination Element Tag must be the INT type. Bit 3 is explicit protected mode and a value of 1 indicates that protected mode is enabled. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 17: Secure Digital Card

    If the module is already powered, and an SD card is inserted, a warning message is displayed. To see other potential error messages, see Table 19 on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 18: Disable Secure Digital Card

    You can use third-party SD cards with the device. You can use SD cards with as much as 32 GB of memory. IMPORTANT Rockwell Automation does not test the use of third-party SD cards with the device. If you use an SD card other than those cards that are available from Rockwell Automation, unexpected results can occur.

  • Page 19: Cip Security

    Device Identity and Authentication • Data Integrity and Authentication • Data Confidentiality Rockwell Automation uses the following products to implement CIP Security: • FactoryTalk Services Platform, version 6.11 or later, with the following components enabled: - FactoryTalk Policy Manager - FactoryTalk System Services •...

  • Page 20: Syslog Event Logging

    IMPORTANT The 1756-EN4TR module must be connected to the same network as the syslog collector. For more information, see: • CIP Security with Rockwell Automation Products Application Technique, publication SECURE-AT001. • Logix 5000 Controller and I/O Fault Codes and Syslog Messages, publication 1756-RD001.

  • Page 21: Device Level Ring (Dlr)

    Depending on their firmware capabilities, both devices and switches can operate as supervisors or ring nodes on a DLR network. Only switches can operate as redundant gateways. For more information about DLR, see the EtherNet/IP Device Level Ring Application Technique, publication ENET-AT007. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 22 Chapter 1 ControlLogix EtherNet/IP Network Device Overview Notes: Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 23: Set The Ip Address

    EtherNet/IP or USB drivers that are installed on the programming workstation • MAC ID from the device, which is on the label on the side of the device • Recommended IP address for the device Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 24: Set The Ip Address With Rotary Switches

    We recommend that you set the rotary switches to a valid number before installing the module. IMPORTANT For more information on how to use the BOOTP/DHCP server to set the IP address, see EtherNet/IP Network Configuration Manual, publication ENET-UM006 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 25: 1756-En4Tr Mode Rotary Switch

    You can reset the configuration of the module to its factory default value with Default Value the following method. If the module has rotary switches, set the switches to 888 and cycle power. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 26: Redundant Adapter Considerations Setting The Ip Address

    5. Set the same IP address on the second module as you set on the first module. 6. Set the rotary mode switches to 6 or 7 on both modules to put the modules in redundant adapter mode, and put the modules in slots 0 and Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 27: Redundant Design Considerations

    If you are using one 1756-EN4TR adapter, it functions as one adapter. If a redundant adapter is in slot 0 or slot 1, then both of those slots must contain a redundant adapter. No other types of modules can be part of the pair. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 28: Redundant System Components

    Depending on the RPIs configured, the observed switchover time can appear longer. Transmission time that is imposed by network infrastructure has to be considered when calculating overall switchover time. No connection drops occur during this switchover process. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 29: Status Display Codes

    0 and 1 of the same chassis. • be initially set to the same IP address. • have at least one Ethernet port link active. • be connected to the same Ethernet network. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 30: Configure A 1756-En4Tr Redundant Adapter Pair

    When a chassis is configured for a 1756-EN4TR redundant adapter pair and the I/O chassis contains any of the preceding modules, then the 1756-EN4TR modules must be configured as Time Sync and Motion or unexpected connection drops can occur. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 31 9. Examine the AOP screens by right-clicking on the module and select Properties. You can now see options in your configuration tree for Module Info Primary, Module Info Secondary, and Redundancy. The image below shows the Module Info Primary Tab. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 32 10. Under the Redundancy tab, click Qualify Secondary. 11. Click the Module Info Secondary page and examine the information. In the Status table, the Configured section says “No” if it is not qualified. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 33 Slot 1. If the primary module was in slot 1 and a switchover occurred, you can see a change in the serial number of the module to match the module in slot 1. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 34 If you try to make a redundancy system starting in any other slot in the chassis other than slot 0, the redundancy option will not be available on the module definition configuration screen. The redundant adapter must be present in slot 0. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 35: Redundant Architecture

    Configure all DLR devices on the ring to be at the same speed on all links as defined in the Deploying Device Level Ring within a Converged Plantwide Ethernet Architecture design and implementation guide, ENET-TD015. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 36 However, the switch at the center of the star is a single point of failure. DLR provides for higher resiliency. Figure 3 - Redundant 1756-EN4TR Adapters in Star Topology with a Single Switch 1756-EN4TR or 1756-EN2T 1756-EN4TR pair Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 37: Redundant Architecture Network Considerations

    4, if a link is broken between two switches, a switchover does not occur because the link to the redundant adapter is still in place. Figure 4 - Invalid Topology: Network Break Does not Cause Switchover Primary Secondary Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 38 Similarly, the secondary controller in the redundant controller pair disqualifies because it cannot detect the primary. Figure 5 - Invalid Topology: Network Break Results in Loss of Control Secondary Primary Primary Secondary Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 39: Prp Architecture With Redbox Switches

    PRP LAN A and LAN B. Figure 6 - PRP Network with RedBox Switches and Redundant Adapters LAN A LAN B RedBox 1 RedBox 2 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 40: Prp Architecture Without Redbox Switches

    Connect the redundant adapters in the I/O chassis to LAN A and LAN B. Figure 7 - PRP Network with Redundant Adapters 1756-EN4TR 1756-EN4TR LAN A LAN B 1756-EN4TR Redundant Adapter Pair 1756-EN4TR as a single adapter Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 41: Security Options

    Communication goes through the backplane and Ethernet ports. When you configure the communication path, the values in the path specify backplane or Ethernet port: • 1 - Backplane • 2 - Ethernet port Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 42 1 (denoting from the controller to the backplane), slot number of local communication module, 2 (denoting out the Ethernet port of the communication module), IP address of remote module that is receiving the change. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 43: Disable/Enable An Ethernet Port

    To disable an Ethernet port, clear the Enabled checkbox. • To enable an Ethernet port, select the Enabled checkbox. 3. Click Apply. 4. Click Yes on the confirmation messages that appear. The change takes effect immediately. 5. Click Refresh. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 44: Disable/Enable An Ethernet Port On The Port Configuration Tab

    To enable an Ethernet port, select the Enable checkbox. 4. On the Port Configuration tab, click Set. 5. On the dialog box, click Yes. The change takes effect immediately. 6. On the Port Configuration category, click OK. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 45: Disable An Ethernet Port With A Msg Instruction

    Element tag value is 2. To re-enable the port, complete the steps that are described in this section. Before you enable the MSG instructions, however, make sure that the Source Element tag value is Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 46: Disable The Cip Security Ports

    1. On the Factory Talk Linx Network Browser, select 1756-EN4TR, and click Configure Device. 2. Click CIP Security. 3. Select the Disable CIP Security (Port 2221) checkbox. 4. Click Apply. 5. Click Yes on the confirmation messages that appear. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 47: Disable The Cip Security Ports With A Msg Instruction

    Message Type: CIP Generic Service Type: Custom Service Code: Instance: Class: Attribute: Controller tag of SINT[9] data type. This is the controller tag that you created Source Element: in step 1. Source Length: Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 48 Chapter 4 Security Options 4. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page 5. Cycle power on the controller for the configuration to take effect. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 49: Disable/Enable Lldp

    2. On the LLDP category: • To disable LLDP, clear the Enabled checkbox. • To enable LLDP, select the Enabled checkbox.. 3. Click Apply. 4. Click Yes on the confirmation messages that appear. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 50: Disable The Usb Port

    Controller tag of SINT data type. Source Element: In this example, the Source Element is named Port_Configuration. Source Length: 3. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 51: Disable/Enable The Sd Card

    On the SD Card category in the module properties dialog: • To disable the SD card, clear the Enable SD Card checkbox and click Set. • To enable the SD card, select the Enable SD Card checkbox and click Set. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 52: Disable/Enable The Sd Card With A Msg Instruction

    - To Enable: set source tag value to 0 - To Disable: set source tag value to 1 3. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 53: Disable/Enable The 4-Character Status Display

    Table 12 - Disable/Enable All Categories of Messages Message Type: CIP Generic Service Type: Set Attribute Single Instance: Class: Attribute: Controller tag of SINT data type. Source Element: In this example, the controller tag is named Display_SINT. Source Length: Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 54: Disable/Enable Individual Categories Of Messages

    Table 13 - Disable/Enable Individual Categories of Messages Message Type: CIP Generic Service Type: Set Attribute Single Instance: Class: Attribute: Controller tag of DINT data type. Source Element: In this example, the controller tag is named Line_MASK. Source Length: Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 55 To re-enable the subsets, complete the steps that are described in this section. Before you enable the MSG instructions, however, make sure the appropriate bit in the Source Element tag value is 0. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 56: Disable/Enable The 1756-En4Tr Webpages

    If you use values that are different than the ones shown, the controller webpages are not disabled. Source Length: 3. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 57: Use A Cip Generic Msg To Enable The Webpages

    If you use values that are different than the ones shown, the controller webpages are not enabled. Source Length: 3. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 58: Disable/Enable Simple Network Management Protocol (Snmp)

    If you use values that are different than the ones shown, SNMP will not be disabled. Source Length: 3. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 59: Use A Cip Generic Msg To Enable Snmp

    3. On the Communication tab, configure the Path. See Configure the MSG Communication Path on page There are two additional tables to store the result of the IANA port administrator state change operation. Figure 8 - onArrayOut Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 60: Disable The Socket Object

    This process automatically communicates controller data and application conditions to appropriate personnel. 1756-EN4x The controller communicates with the Email Object via MSG instructions. For more information on the Email Object, see EtherNet/IP Network Devices User Manual, publication ENET-UM006. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 61: Controllogix Network Device Status Indicators

    OK Status Indicator LINK NET OK Network Status Indicator (NET) Link Status Indicator (LINK) Figure 10 - 1756-EN2TR, 1756-EN3TR (Dual-port Modules) Module Status Display OK Status Indicator Link Status Network Status Indicator (NET) Indicators (LINK) Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 62 (1) Parallel Redundant Protocol and Redundant Adapter features are not available in the initial release. Check the Product Compatibility and Download Center (PCDC) to see if it is available in your firmware revision. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 63: Single-Port Module Status Indicators

    Indicates if CIP connections are established. <IP_address_of_this_module> Duplicate IP <Mac_address_of_duplicate_node_detected> For example: OK 10.88.60.196 Duplicate IP - 00:00:BC:02:34:B4 Change the IP address of the module. Flashing green/flashing The module is performing its power-up testing. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 64: Dual-Port Module Status Indicators

    Module Status display. The display scrolls: OK <IP_address_of_this_module> Duplicate IP <Mac_address_of_duplicate_node_detected> For example: OK 10.88.60.196 Duplicate IP - 00:00:BC:02:34:B4 Change the module’s IP address. Flashing green/flashing The module is performing its power-up testing. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 65 The module does not recognize the SD card. Parallel Redundancy Check Firmware Revision for availability of this feature. Protocol (PRP) Major revision 3.001 or higher. Redundant Adapter (RA) (1) Status indicators only available on the 1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 66: Diagnostic Web Pages

    The diagnostic web home page appears. 3. Open the Diagnostics folder in the left-most navigation bar and click the link for each diagnostic web page you must monitor. For more information on diagnostics, see ENET-AT003. Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...

  • Page 67: Index

    28 Ethernet port redundancy mis-match 29 disable 43 EtherNet/IP 7 communication modules 9 connect to network 23 SD card control system 8 network 11 disable 51 EtherNet/IP network module features 9 specifications 9 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 68 1756-EWEB 62 dual-port 64 single-port 63 summary of changes 5 tags produced and consumed 9 troubleshoot web browser support 66 USB port disable 50 vendor 13 web browser support 66 webpages disable 56 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 69 ControlLogix EtherNet/IP Network Devices User Manual Notes: Rockwell Automation Publication 1756-UM004D-EN-P - August 2022...
  • Page 70 Allen-Bradley, Compact 5000, ControlFLASH Plus, CompactLogix, ControlLogix, ControlLogix-XT, expanding human possibility, FactoryTalk, FLEX 5000, Kinetix, Logix 5000, PanelView, PowerFlex, Rockwell Software, Rockwell Automation, RSLinx, RSLogix 5000, Stratix, and Studio 5000 Logix Designer are trademarks of Rockwell Automation, Inc. CIP, CIP Safety, CIP Security, DeviceNet, and EtherNet/IP are trademarks of ODVA, Inc.

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