release notes

Release Notes

ControlLogix Enhanced Redundancy System, Revision 16.54

Catalog Numbers 1756-CN2, Series B, 1756-CN2R, Series B, 1756-EN2T, 1756-L61, 1756-L62, 1756-L63, 1756-L64, 1756-RM

About This Publication This publication contains the information you need to know to use the Enhanced ControlLogix Redundancy System firmware bundle, revision 16.54. The following table describes the combinations of firmware contained in revision 16.54 of the Enhanced ControlLogix Redundancy System. The firmware bundle can be found at: http://support.rockwellautomation.com. The firmware bundle is identified as V16.54EnhClxRed.

Combinations of Firmware in Revision 16.54

Topic Page

About This Publication 1

Compatible Software Versions 2

About the Enhanced ControlLogix Redundancy System 3

Features of the Enhanced Redundancy System Revision 16.54 4

Known Anomalies in Revision 16.54 7

Known Anomalies for All Revisions 8

Restrictions in Revision 16.54 9

Application Notes 11

Enhanced Redundancy Upgrade Procedure 12

Store a Project to Nonvolatile Memory While Your Process is Running 13

Additional Resources 14

Module Cat. No Series Firmware Revision

ControlLogix5561 controller 1756-L61 Any 16.54




ControlLogix Ethernet/IP bridge module 1756-EN2T Any 2.003

ControlLogix Redundancy module 1756-RM A 2.03

ControlLogix ControlNet interface module 1756-CN2, 1756-CN2R

B 20.009

http://support.rockwellautomation.com


2 ControlLogix Enhanced Redundancy System, Revision 16.54

Compatible Software Versions

To use this revision, you need the following software versions.

How Do I Tell Which Version I Have of the Configuration Tool?

To see which version of the System Redundancy Module Configuration tool that you have, perform this procedure.

1. Start RSLinx programming software.

2. From the Communications pulldown menu, choose RSWho.

3. Browse to and right-click your 1756-RM module and choose Module Configuration.

Software Version Notes

RSLinx Classic 2.52

System Redundancy Module Configuration Tool

5.2.3

RSLinx Enterprise 5.0 You need this only for these HMIs:• PanelView Plus terminal.

• VersaView industrial computer running a Windows CE operating system.

• RSView Supervisory Edition software.

RSLogix 5000 16.03

RSNetWorx 8.0

Publication 1756-RN650B-EN-E - May 2008

ControlLogix Enhanced Redundancy System, Revision 16.54 3

The Module Configuration dialog appears.

4. Right-click the title bar and choose About to verify the version of your configuration tool.

About the Enhanced ControlLogix Redundancy System

The Enhanced ControlLogix Redundancy System offers the following features.

• Uses less cabinet space by using the single slot 1756-RM module.

• The enhanced system is compatible with the following communication modules in the redundancy chassis: 1756-CN2, 1756-CN2R Series B and or 1756-EN2T modules.

• You can apply CIP Synch as the time master with the 1756-EN2T module.

• You can install two 1756-L61/L62/L63 processors in each redundant chassis.

• There is support for one 1756-L64 processor.

• Provides reduced switchover time (as fast as 10 ms).

• Offers USB connections on communication modules to connect to an engineering workstation.



Features of the Enhanced Redundancy System Revision 16.54

These enhancements apply only to controllers in a redundant system. For the list of enhancements for all systems, see ControlLogix Controller Revision 16 Release Notes, publication 1756-RN620.

Feature Description

1756-RM redundancy module

System Event History. A system event history tab is available in the configuration tool and is visible only when the session is launched against the 1756-RM module. This feature automatically captures key events occurring in the redundant system that tell why a switchover occurred or why redundancy was lost.

Certain events also indicate what caused the chassis pair to become synchronized. There are 10 most recent entries available for viewing. Each entry has a user comment attached to it that can be used to enter system maintenance information. For more details, see the online help in the configuration tool.

Lgx00073250

User identity parameters are retained through a power-cycle.

The user identity parameters are now 64 characters in length and made nonvolatile on the 1756-RM module. The parameters are saved to nonvolatile memory whenever a change is made.

Lgx00073247

The 1756-RM module displays the qualifying state on the front panel.

The 1756-RM module in the secondary chassis displays a “QFNG” four character code when the redundant chassis pair is qualifying for synchronization.

Lgx00073276


http://literature.rockwellautomation.com/idc/groups/literature/documents/rn/1756-rn620_-en-e.pdf


New entries are added to the event log. The 1756-RM module is able to report any changes in the application firmware revision and the backplane serial number via entries posted to the event log. This information helps to tell you when the firmware upgrade took place and whether the chassis location of the 1756-RM module was changed.

Lgx00073278

Displays the module product-name string and firmware revision numbers in the configuration tool.

The Redundancy Configuration Tool displays the product name string and firmware revision of redundancy compliant modules in the chassis, under additional columns in the Sync Status page of the configuration tool.

Lgx00073729

The primary 1756-RM module is the Wall Clock Time (WCT) master for the secondary 1756-RM module.

The 1756-RM module in the primary chassis is the master of the currentTime attribute of the WCT object. When a secondary 1756-RM module is connected, the currentTime attribute in the primary 1756-RM module will be copied over to the secondary 1756-RM module to make them the same. The currentTime attribute on the secondary 1756-RM module will be synchronized every 1 second.

Lgx00073248

The 1756-RM module may be accessible in a Major Faulted State.

It may be possible to communicate with the 1756-RM module even if it has already experienced a Major Non-Recoverable Fault. This allows the fault code to be read remotely and facilitates the retrieval of event logs in the faulted state.

Lgx00073258

ControlLogix controllers

Support for the ControlLogix L64 controller. Firmware revision 16.54 supports the ControlLogix L64 controllers.

Feature Description



RSLogix 5000 software

Redundancy support for Add-On Instructions. Firmware revision 16.54 provides redundancy support for Add-On Instructions.

Selectable Crossload, limits what programs can cause a synchronization.

The default setting for Program Properties is to Synchronize Redundancy Data after Execution.To not perform synchronization of redundancy data after execution, follow these steps.1. Right-click MainProgram and choose

Properties.2. Clear the Synchronize Redundancy Data

after Execution checkbox.3. Click Apply.

Firmware revision 16.54 redundancy support adds the ability to limit which programs cause a synchronization. In many applications this can reduce the overall impact to the task scan by reducing the number of times a data area is synchronized, as well as eliminating 1 ms of overhead per synchronization point. However, this could delay the switchover time because more programs may need to be re-scanned in the new primary from the last sync point on recover. The synchronization is performed at the end of the last program in the task's program list, regardless of its Synchronize Data after Execution selection.

Feature Description



Known Anomalies in Revision 16.54

The following table describes the known anomalies for Enhanced ControlLogix Redundancy system firmware bundle, revision 16.54.

Known Anomaly Description


The 1756-RM module’s display may go blank with solid Red OK status indicator at powerup.

Sometimes, the 1756-RM modules’ display may go blank soon after power is applied to the chassis and the OK status indicator stays solid red. The 1756-RM module will not be accessible across the backplane and not communicate on the fiber-optic port and the other modules in the chassis will powerup as in a nonredundant chassis. To recover, remove and reinsert the module.

Lgx00082630 and Lgx00081559

The 1756-RM module does not detect module insertion at power up.

On very rare occasions, the 1756-RM module may not detect a module in the chassis when you apply power. An undetected module just in the secondary chassis may cause qualification to be aborted. The undetected module may be spotted by looking at the Synchronization Status tab in the configuration tool. To recover, remove and reinsert the undetected module in the same slot.

Lgx00079417

The 1756-RM module may log minor faults in a steady synchronized state.

On very rare occasions, the 1756-RM module may log minor faults E8AC & E2WZ while the chassis pair is already synchronized. These faults are for information purposes only and do not indicate any problems in the system.

Lgx00080482

The 1756-RM redundant chassis pair may fault with an error EA84 or EA28 on switchover.

Under rare conditions, when the ethernet cable to a primary 1756-EN2T module is broken, the 1756-RM redundant chassis pair may fault with an error EA84 or EA28 fault code, but will successfully execute the switchover.To recover, do the following.• Remove and re-insert the 1756-RM module in the new primary chassis, then re-insert the

1756-RM module in the secondary chassis.

• Leave the fiber optic cable connected between the 1756-RM redundant chassis pair during both removal and re-insertions.

Lgx00084385

1756-CN2, series B communication module

Assigning network address of 96 or greater.

The 1756-CN2, series B module cannot use a ControlNet network address of 96 or greater in a redundancy chassis pair. If you set the switches on the 1756-CN2, series B module to 96 or greater, the module will fault if placed in a secondary chassis.

Lgx00082110

1756-EN2T, series B communication module

CIP Sync on the 1756-EN2T module fails in redundancy after a power cycle switchover and HMI loading.

On very rare occasions, the 1756-EN2T module may powerup and not synchronize CIP Sync time to the grandmaster or synchronize with an incorrect time. To recover, restart the module.

Lgx00083465 and Lgx00082870

The 1756-RM module failed with the communication error EAE8 after the redundancy pair chassis were power cycled simultaneously.

When the 1756-RM module powers up and can't communicate with the other 1756-RM modules, it displays a “WouldBeDUPENODE” with the communication modules. The 1756-EN2T module does not always respond within the allotted time causing the 1756-RM module to give the EAE8 error. To recover, restart the 1756-RM module.

Lgx00079052



Known Anomalies for All Revisions

The following table describes the known anomalies for all ContolLogix Enhanced Redundancy system firmware revisions.

1756-Lx ControlLogix controller

The primary 1756-RM module faults with an E054 error when the secondary controller is removed or faults.

Under rare conditions, when a secondary controller is removed or faults while synchronized, the primary 1756-RM module may display an E054 error on its front panel. To recover, remove the primary 1756-RM module from the rack and reinsert it. This will cause all modules in the secondary to disqualify, allowing a re-qualification to proceed.

Lgx00083316

Update a 1756-L64 controller. If you have a 1756-L64 controller at revision 1.10 firmware (factory default), you will need to update the controller firmware from the primary chassis or nonredundant chassis. If you install the controller in a secondary chassis, it could have a major nonrecoverable fault or remain in a faulted state. OK status indicator is solid red.



RSLogix 5000 programming software

Performing online edits during a switchover.

In some instances, RSLogix 5000 programming software may not let you perform additional online edits of a function block, SFC, or structured text routine. This may occur if you edit the routine while online and the system is switching over and synchronizing. To recover, do the following.

1. Close and then reopen RSLogix 5000 programming software.

2. Upload the RSLogix 5000 project from the primary controller.

ASCII instructions may prevent the secondary controller from synchronizing.

After you download a project that contains ASCII instructions (for example, ABL, ACB) to a pair of redundant controllers, the secondary controller may disqualify and fail to synchronize. If this occurs, turn off both controllers (primary and secondary) and then turn them back on.

ControlLogix chassis

Fail to synchronize with a high connection count.

The chassis can fail to synchronize if the controller is near its connection limits.Lgx00063311



Restrictions in Revision 16.54

The support for online migration from all standard modules to all enhanced modules is planned for the Enhanced ControlLogix Redundancy System, firmware bundle, revision 16.60. Additionally, in revision 16.60, the 1756-RM module firmware is planned to support the replacement of the 1757-SRM module in the standard chassis configuration of communication modules.

Redundancy firmware revision 16.54 has the following restrictions.

IMPORTANT In a redundant system, use an EtherNet/IP network only for HMI/workstation communication and messaging.Do not use an EtherNet/IP network for:• communication with I/O modules.

• communication between devices via produced/consumed tags.

Restriction Description


The 1756-RM module cannot synchronize or lock a redundant chassis pair containing standard modules.

The 1756-RM module has the ability to synchronize or lock a redundant chassis pair containing only the enhanced modules; 1756-CN2, series B, 1756-EN2T, and 1756-L6x. If the standard modules; 1756-CNB, series D; 1756-CNB, series E; 1756-ENBT, series A; 1756-EWEB, series A, are mixed with the enhanced communication modules in either chassis of the redundant pair or a 1756-RM module resides in a chassis with only standard modules; then the 1756-RM module displays a “!Cpt“ message on the front panel and aborts any qualification or lock attempts.Due to this restriction, online migration from a standard platform to an enhanced platform is not permissible in this revision.

Lgx00075985

System Event Entry contains a module failure event when an enhanced communications module is inserted.

The System Event History displays a “Module Failure” entry when you insert a 1756-CN2, series B module or a 1756-EN2T module in the chassis while the redundant chassis pair is already synchronized. This is not indicative of any module failure, instead it only tell you that an enhanced communication module was inserted in the chassis.

Lgx00078874 and Lgx00074190

Do not manually unplug and re-plug the fiber optic cable repeatedly while the redundant chassis pair is qualifying.

This may cause the 1756-RM module to fault with different E0Ix fault codes. If the fiber cable is unplugged, wait at least 5 seconds before you reconnect the cable.

Lgx00084595

Redundancy Configuration Tool Version 5.2.30

Comments cannot be added to older events in the System Event History tab.

In the System Event History tab, commented entries you have already saved to non-volatile memory cannot be edited. However, new events generated (after the last attempt to save to non-volatile memory) are able to accept edits.

Lgx00084176



ControlLogix controller

ControlLogix5555 controller is not supported in the Enhanced Redundancy System firmware bundle, revision 16.54.

The ControlLogix5555 controller is not supported in the Enhanced Redundancy System firmware bundle, revision 16.54. If you have a 1756-L55 controller in a Standard Redundancy System, you must upgrade the controller to a 1756-L6x at firmware revision 16.54 when you perform the hardware upgrade to the Enhanced Redundancy System.

For a series B controller with revision 1.7 firmware, use a nonredundant chassis to update it the first time.

ExampleOnce out of its box, your controller’s label shows it to be series B, with revision 1.7 firmware.

Follow this procedure.1. Put the controller in a nonredundant chassis.2. Update the controller.3. Put the controller in the redundant chassis.

Otherwise, the controller will have a nonrecoverable fault.After you update it the first time, you can update it in the redundant chassis from then on.ExceptionThe controller is already running in your system. You want to update it to a later revision. In this case, leave it where it is and update it there.

The Equipment Phase feature is not supported. The Equipment Phase feature in the ControlLogix system is not supported in ControlLogix controller firmware revision 16.54. The project will not download with a phase installed in the project. The Equipment Phase feature is planned to be supported in ControlLogix redundancy firmware revision 16.60.

The Alarms instructions are not supported. The Alarm Instructions along with FactoryTalk Alarm and Events instructions are not supported in ControlLogix redundancy firmware revision 16.54. The project will not download with an Alarm instruction installed in the project. The Alarm instructions are planned to be supported in ControlLogix redundancy firmware revision 16.60.

1756-CN2 ControlNet interface module

1756-CN2 and 1756-CN2R, series B module firmware is not compatible with 1756-CN2 and 1756-CN2R, series A hardware.

The 1756-CN2 and 1756-CN2R, series B module firmware 20.009 is not compatible with the 1756-CN2 and 1756-CN2R, series A hardware. Do not attempt to upgrade an 1756-CN2 or 1756-CN2R, series A with 1756-CN2 or 1756-CN2R, series B firmware. If this attempt is made, ControlFlash software displays a severe incompatibility warning.

Do not use 1756-CN2, series A modules in a redundant chassis.

You cannot use the 1756-CN2 series A module in a redundant chassis. The 1756-CN2, series A module is not a redundancy compliant module in either a standard or enhanced redundancy system.


CATALOG / SERIES PART NO.CATALOG REV.

LOGIX 5563PROCESSOR UNIT

1756-L63 B

F/W REV.

1.7

1.7B



Application Notes The following is the description for the minimum value for the Watchdog Time.

Minimum Value for the Watchdog Time

Set the watchdog time for each task to this value or more:

Minimum watchdog time = (2 * maximum_scan_time) + 150 ms

where:

Maximum_scan_time is the maximum scan time for the entire task when the secondary controller is synchronized.

1756-EN2T interface module

The 1756-EN2T module refuses all outbound connections via the EtherNet port.

On very rare occasions, cycling power on the Ethernet switch/router that the 1756-EN2T module is connected to results in an unresponsive 1756-EN2T module. The module will not respond to Ethernet, backplane or USB traffic, even though the status indicators remain green and the display shows no errors. To recover, restart the module.

Lgx00081018

1756-EN2T communication module

Do not use 1756-EN2T modules in a redundant chassis if you are at firmware revision 1.004 or less.

You cannot use this revision with firmware revision 1.004 of the 1756-EN2T module in a redundant chassis. The 1756-EN2T module firmware, revision 1.4 is not a redundancy compliant module in either a standard or enhanced redundancy system. You must first upgrade the firmware to 2.003 or later. Once upgraded, the 1756-EN2T module will be redundancy compliant only in the Enhanced redundant chassis.

ControlLogix chassis

Chassis disqualification. If your secondary chassis becomes disqualified or you manually disqualify it, do these actions before you try to synchronize the chassis:• Make sure the synchronization status of the primary modules is full

compatibility.

• Wait at least 15 seconds after the redundant chassis are disqualified before you try to synchronize them.




Enhanced Redundancy Upgrade Procedure

To upgrade a Standard ControlLogix Redundancy system, revision 16.50 to an Enhanced ControlLogix Redundancy system, revision 16.54 will require the following.

• Redundancy system to be offline• Both primary and secondary chassis need to powered off• All the standard communication modules are required to be replaced

with enhanced modules• The 1757-SRM modules required to be replaced with 1756-RM modules

Offline Redundancy-System Hardware Upgrade Procedure

Follow these steps to upgrade your hardware.

1. Place your standard redundancy system offline.

2. Power off both primary and secondary chassis.

3. Replace the 1757-SRM modules with 1756-RM modules.

4. Replace all standard communication modules with enhanced modules.

5. Set the network settings (for example, address) for the new enhanced communication modules to match the standard modules you are replacing.

6. Replace the controllers, if you are performing a controller upgrade.

7. Upgrade the firmware of the new modules as soon as they are inserted in the chassis.a. Apply power to each chassis individually to upgrade the firmware.b. Power down each chassis.

8. Attach compatible fiber cables, refer to the 1756-RM Installation Instructions, publication 1756-IN092, for more information

9. Apply power to primary chassis.

10. Load a revision 16.54 controller program.

If you have an existing RSLogix5000 program for the controller, update the program to reflect the new modules and firmware revisions.

11. After you replace your 1756-CNB or 1756-CNBR modules with 1756-CN2 or 1756-CN2R modules, reschedule the network.

12. Place the controller in Run mode.

13. Apply power to the secondary chassis.

14. Allow it to synchronize if auto-qualify is set or commanded to synchronize.

IMPORTANT Safely shut down system and controlled equipment. Be sure to place the system and controlled equipment in a state where they can be safely shut down prior to the hardware upgrade.



Store a Project to Nonvolatile Memory While Your Process is Running

Use this procedure to store an updated project and firmware to the nonvolatile memory of the controller while your process is running.

IMPORTANT Use this procedure only with a 1756-L6x controller.

Step Details

1. Make sure the chassis are synchronized.

Synchronize the chassis if they are not already synchronized.

2. Disqualify the secondary chassis. A. Open the 1756-RM configuration tool for the primary chassis.

B. Set the Auto-Synchronization option to Never.

C. Disqualify the secondary chassis.

3. Store the secondary controller’s project.

A. Go online to the secondary controller.

B. Store the project to the nonvolatile memory of the secondary controller.

For step-by-step procedures on how to store a project, see the Logix5000 Controllers Common Procedures Programming Manual, publication 1756-PM001.

Important: Do not go back online to the secondary controller until you complete the rest of the steps in this procedure.

4. Initiate a switchover. A. Go to the 1756-RM configuration tool.

B. Synchronize the chassis.

C. Initiate a switchover.

5. Store the new secondary controller’s project.

A. Go online to the new secondary controller.

B. Store the project to the nonvolatile memory of the secondary controller.

For step-by-step procedures on how to store a project, see the Logix5000 Controllers Common Procedures Programming Manual, publication 1756-PM001.

Important: Do not go back online to the secondary controller until you complete the rest of the steps in this procedure.

6. Synchronize the chassis. A. Go to the 1756-RM configuration tool.

B. Set Auto-Synchronization to the desired option.

C. Synchronize the chassis.


http://literature.rockwellautomation.com/idc/groups/literature/documents/pm/1756-pm001_-en-e.pdf





Additional Resources These documents contain additional information concerning related Rockwell Automation products.

You can view or download publications at http://literature.rockwellautomation.com. To order paper copies of technical documentation, contact your local Rockwell Automation distributor or sales representative.

Resource Description

Enhanced ControlLogix System Redundancy Module Installation Instructions, publication 1756-IN092.

Contains information on how to install the 1756-RM module, Enhanced ControlLogix System Redundancy Module into the redundant chassis pair.

ControlLogix Redundancy System User Manual, publication 1756-UM523

Contains information about ControlLogix redundancy systems and media.

ControlFLASH Firmware Upgrade Kit Quick Start, publication 1756-QS105

Contains information on how to upgrade module firmware.

ControlLogix Controllers User Manual, publication 1756-UM001

Contains information on how to install, configure, program, and operate a ControlLogix system.

ControlLogix Chassis-Series B Installation Instructions, publication 1756-IN080

Contains information on how to install a ControlLogix chassis.

ControlNet Fiber Media Planning and Installation Guide, publication CNET-IN001B-EN-P

Contains information on how to plan and install ControlNet fiber media.

ControlLogix Power Supplies Installation Instructions, publication 1756-IN596

Contains information on how to install the 1756-PA75 and 1756-PB75 ControlLogix power supplies.

Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1

Provides general guidelines for installing a Rockwell Automation industrial system.

Product Certifications website, http://ab.com

Provides declarations of conformity, certificates, and other certification details.


http://literature.rockwellautomation.com/idc/groups/literature/documents/in/cnet-in001_-en-p.pdf

http://www.literature.rockwellautomation.com/idc/groups/literature/documents/in/1770-in041_-en-p.pdf

http://ab.com

http://literature.rockwellautomation.com

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1756-um001_-en-p.pdf

http://literature.rockwellautomation.com/idc/groups/literature/documents/qs/1756-qs105_-en-e.pdf

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1756-um523_-en-p.pdf

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/1756-in596_-en-p.pdf

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/1756-in080_-en-p.pdf

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1756-in092_-en-p.pdf


Notes:


Publication 1756-RN650B-EN-E - May 2008 16 PN-26812

Rockwell Automation Support

Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.

For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com.

Installation Assistance

If you experience a problem within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your product up and running.

New Product Satisfaction Return

Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned, follow these procedures.

Allen-Bradley, Rockwell Automation, ControlLogix, FactoryTalk Alarms and Events, RSLinx Classic, PanelView Plus, VersaView, RSView Supervisory Edition, RSLinx Enterprise, RSLogix 5000, RSNetWorx, ControlFLASH, RSLinx, RSNetWorx for ControlNet, Logix5000, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

United States 1.440.646.3434 Monday – Friday, 8 a.m. – 5 p.m. EST

Outside United States Please contact your local Rockwell Automation representative for any technical support issues.

United States Contact your distributor. You must provide a Customer Support case number (see phone number above to obtain one) to your distributor in order to complete the return process.

Outside United States Please contact your local Rockwell Automation representative for the return procedure.

Supersedes 1756-RN650A-EN-E April 2008 Copyright © 2008 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.




release notes

Documents

enhanced system

rm module

redundancy chassis

redundant system

b firmware revision

application firmware

module configuration

system maintenance information