Building Automation Knowledge Base

Issue MSTP controllers go offline when changing the MaxMaster value in the Automation Server from it's default of 127 Product Line EcoStruxure Building Operation Environment Building Operation Workstation Building Operation Automation Server MSTP Master Controllers Cause The MaxMaster value is being set lower than some or all of the MSTP controllers on the network Resolution EcoStruxure Building Operation supports MSTP Master controllers in the address range 0-127 (often refered to as the node id). The MSTP network is a token passing network where the token is passed around the network, until a controller has the token it cannot 'talk' to other devices.   The MaxMaster value is defaulted to 127 to allow all devices on the network to receive the token and reply to online status requests, send values etc. If the MaxMaster value is less than any of the MSTP Master controller addresses then those controllers never receive the token and cannot respond to online status requests.   The value for the MaxMaster needs to be equal to or greater than the highest addressed MSTP controller node id.  For example, if the highest node id=54 then the MaxMaster will need to be set to 54 or higher. For maximum efficiency the MaxMaster should be set 1 or 2 greater than the highest controller address, this allows for adding future devices without needlessly polling for many non-existent devices.    Please refer to BACnet MS/TP Network Properties – Basic Tab or Configuring the MS/TP Network for b3 Communication 

Issue Alarm colors in Workstation Product Line EcoStruxure Building Operation Environment  Building Operation Workstation Cause The default color for active alarms is white font with a red background. Some customers may want this to be in a different color.  Resolution In Building Operation Workstation System tree, go to Alarm Control Panel > Alarm Styles.  From here, the font type, font color and background color of acknowledged, active, disabled, fault or reset alarm states can be changed.  Refer to: Styling the Alarm States in the Alarms Pane and Alarm Views   Also available from EcoStruxure Building Operation 1.9 and above is Alarm Decoration. This allows overriding an alarm configuration for a specific alarm or group of alarms and applying an alarm decoration rule.  An alarm decoration rule is similar to a filter and allows changing other properties in addition to the font type, font color and background color.

Issue External Log Storage PostgreSQL / TimescaleDB schema. Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation 3.0 and above External Log Storage Cause Need to understand what is supported with regards to third-party queries to the PostgreSQL / TimeScaleDB  Resolution The PostgreSQL database schema is not published by R&D (The Report Server schema can be generated via WebReports see Obtaining a Database Schema for EBO WebReports / Report Server - Communities, but should not be compared with External Log Storage) In order to get visual diagrams that show relations of the Extended Log Storage PostgreSQL TimescaleDB, you can download tools such as "SchemaSpy ", ERBuilder, or similar to generate it. Sample outputs are attached from SchemaSpy and ERBuilder. The PostgreSQL database schema is likely to change with each EBO version and hence is not published External Log Storage is designed to operate with EBO, rather than provide data directly to a third party - no support is offered with the third-party connection and data transfer Only third-party read querying is allowed Most tables are self-explanatory, the "trend_data" table, "Type" column is detailed below: It's a number representing which record type TrendRecordTypes = { RecordTypes::s_trendrecordTLogValueRecord, RecordTypes::s_trendrecordTLogEditValueRecord, RecordTypes::s_trendrecordTLogCommentRecord, RecordTypes::s_trendrecordTLogEventRecord, RecordTypes::s_trendrecordTLogEventValueRecord, RecordTypes::s_trendrecordTLogMeterChangeRecord, RecordTypes::s_trendrecordTLogNullEventRecord, RecordTypes::s_trendrecordTLogReconfigRecord, RecordTypes::s_trendrecordTransferEventRecord }; The record type that is most common is the TLogValueRecord, and it's 0 and so on   For reference, the only other documents available would be Alarms - Add/Remove Columns Dialog Box (Alarms) (se.com) Events - Add/Remove Columns Dialog Box (Events) (se.com) Trends - Add/Remove Columns Dialog Box (Trends) (se.com)

Issue Does Building Operation use Unicast or Multicast? Product Line EcoStruxure Building Operation Environment Building Operation Enterprise Server Building Operation Automation Server Building Operation Workstation Cause Does Building Operation use Unicast or Multicast? Definitions: Unicast packets are sent from host to host. The communication is from a single host to another single host. There is one device transmitting a message destined for one receiver. Multicast is a protocol for use with IP. Multicast enables a single device to communicate with a specific set of hosts, not defined by any standard IP address and mask combination. This allows for communication that resembles a conference call. Anyone from anywhere can join the conference, and everyone at the conference hears what the speaker has to say. The speaker's message is not broadcasted everywhere, but only to those in the conference call itself. A special set of addresses is used for multicast communication. Broadcast is when a single device is transmitting a message to all other devices in a given address range. This broadcast could reach all hosts on the subnet, all subnets, or all hosts on all subnets. Broadcast packets have the host (and/or subnet) portion of the address set to all ones. By design, most modern routers will block IP broadcast traffic and restrict it to the local subnet. Resolution Building Operation is using only IPv4 and therefore Unicast only. This may change when Building Operation begins using IPv6. At that time, a site may want to use the IPv6 multicast features to address groups of targets.

Issue Trouble synchronizing the time of the Automation Server or Enterprise Server to a NTP server or between each other Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation Enterprise Server EcoStruxure Building Operation Automation Server Cause The Enterprise Server and the Automation Server (ASP/ASB) do not synchronize time to each other, they must use an NTP server for synchronization Resolution The information below is mainly concerned with synchronizing the time setting but not the actual time.   Overview To synchronize the server times an NTP Server will be required, they do not synchronize time with each other. A common misconception is that the Automation Servers sync time with the Enterprise Server via server-to-server communications. To find an external NTP server consult support.ntp.org . Alternatively, an existing internal NTP server can be used or consult Setting up a Local / Internal NTP Server to configure the Enterprise Server computer as a time server The time settings on the Enterprise Server are configured through the operating system settings on the computer where Enterprise Central is installed.  EcoStruxure Building Operation cannot be used to configure the NTP server for the Enterprise Server. Please refer to Network Time on WorkStation, Enterprise Server, and Enterprise Central To find the Network Time Protocol (NTP) configured on a WorkStation, Enterprise Server, or Enterprise Central computer open a command prompt and enter w32tm /query /peers. If configured the peer NTP server(s) will be listed If you need to ensure an NTP server is actually running on certain IP or DNS address, please reference Ensure IP or DNS address is valid NTP server The time settings on the Automation Servers can only be configured via the Workstation. As per the image they can be configured to look at an NTP server (1) or set manually (2). For synchronization, they must use an NTP Server. Please refer to  Network Time Server on an Automation Server on Webhelp Starting in version 1.5, the time adjustment depends on how much the Automation Server drifts from the NTP server. The faster the Automation Server drifts, the more frequently the time is updated.  Please refer to How often will an Automation Server ask the NTP server for the time?  If the time server is a URL, such as time.nist.gov, then it is critical that a Primary DNS is set for each Automation Server, and possibly a Secondary DNS via Device Administrator. Without a DNS, the Automation Server will be unable to resolve the URL to an IP address. Please refer to Configuring the Automation Server IP Address on Webhelp The time displayed for a server in Workstation (Properties -> Basic) will reflect the time zone of the local computer that Workstation is installed on. All events and alarms will be automatically modified to match the time of the workstation that was used to log into the server. The "Server time" will represent the date and time of the server adjusted to client local time zone, while the fields below "Server time" represent the settings of the Automation Server.   How to synchronize date and time settings on multiple Automation Servers   IMPORTANT: Only the time settings are synchronized via the Lead/Shadow configuration, the time itself IS NOT synchronized via the Lead/Shadow but rather by all servers synchronizing with the configured timer server.   The synchronizing of multiple Automation servers can be achieved with a lead/shadow relationship. The primary and secondary network time server settings for connected shadow Automation servers are defined on the Enterprise server. Setting up the Primary and secondary time servers in the Enterprise Server only passes those configuration settings to the AS controllers, it does not send the actual time and date value.   Select the Enterprise server (1), click the Date & Time tab (2), select Enable (3) and enter the Primary time server (4) and, if used, the Secondary time server (5) the Automations Servers will use. Ensutre the time zone for the Enterprise Server is set correctly (6).   Save the settings  From EBO version 2.0 all Automations Servers are automatically configured to shadow the date and time settings configured in the Enterprise Server. To verify this expand the System folder of an Automation Server and select Time Settings -> Date and Time (1). Observe the Date and Time are Shadow-Read only (2), replicating the Enterprise Server settings. Attempting to change any of the settings, other than the Lead object (3), will result in an error. All the Automation Servers will be 'looking' to the same Primary (4) and Secondary time servers, i.e. they will all receive the same time and be synchronized Similarly, select the Time Zone (1) of the Automation Server in the System Tree; this will also be shadow-read only (2). The lead object is set to the Time Zone on the Enterprise Server (3) Before EBO version 2.0 the Automation Servers were not automatically set to shadow the Enterprise Server settings but this could easily be achieved en masse using Search . In the Search box in the top right corner of the Workstation, type "Date and Time" and click Search (1) to find the date and time object of all connected servers. In the Search view select the servers (2) that require their Date and Time settings synchronized to the Enterprise Server, the Enterprise Server does not need selecting. Select the Time tab (3) and then click the triple dots (4) to navigate to and select the Date and Time object on the Enterprise Server (5)   You may need to stop and start the Enterprise server to get the configuration settings to pass down to the shadow Automation servers Note: To set up synchronization of the time zone settings follow the above search steps for date and time but search on Time Zone Tip/Tricks To see the time of on the Enterprise Server and multiple Automation Servers use the Search to find the Date and Time object (1). Individually select each server (2) and then drag the Date and Time object (3) into the Watch Window (4) It is the Automation Server that initiates the synchronization. To check the Automation Server communication settings select the Automation Server (1) and in the Communication tab (2) select the Enterprise Server (3) and make sure the Automation Server has the correct IP address (4) To check the Enterprise Server communication settings select the Enterprise Server (1) and in the Communication tab (2) select each Automation Server (3) and make sure the correct IP address is specified for each Automation Server (4).  If a firewall exists ensure that the ports are open so the Automation Server can connect to the Enterprise Server. Please search for the EcoStruxure Building Operation IT Reference Guide on Exchange for details Further Information Release 1.2.0 and higher Until the time is set, b3 data will not update in the Watch Window Until the time is set, BACnet COV will not be functional Automation Server time does not synchronize directly with the Enterprise Server. Instead, all servers can synchronize to the same accessible time server To adjust the Automation Server time, time zone, and DST, access to the Automation Server is through a WorkStation

Issue Need to verify Network Time Protocol (NTP) server is running/listening on IP or DNS address. Product Line EcoStruxure Building Operation Environment Building Operation Enterprise Server Building Operation Automation Server Cause Automation Servers require valid local or internet NTP servers for accurate timekeeping. Resolution Check an NTP server using this command at the Windows Command Prompt: w32tm /stripchart /computer:<IP Address> /dataonly /samples:5 Substitute the DNS name or IP you want to test for <IP Address>.   Additional Notes: Windows machine must be on the primary ethernet network, as Automation Server's secondary IP Port will not route NTP traffic. Connected to site VPN may or may not perform as expected based on VPN Configuration for the site. One can always remote desktop the Enterprise Server and run Command Prompt to check locally. If the Enterprise Server is configured in a Virtual Environment or on a separate subnet from the Automation Servers, then Enterprise Server Gateway may be an NTP server, so one change to check that IP address using this method. Examples of Success First screenshot is local Enterprise Server running Meinburg NTP server. Second screenshot is an internet NTP server. Example of Failure Screenshot is local Enterprise Server gateway that is NOT running an NTP Server.  Related Article: Time Synchronization of the ES and AS

Issue Help with Creating Custom Reports for EcoStruxure Reports Server Product Line EcoStruxure Building Operation Environment SQL Report Builder 3.0 Cause In order to create a custom report for EcoStruxure, the user must have a basic knowledge of SQL and writing SQL SELECT Statements.  Report Builder 3.0 can walk a user through most of the process but there is a bit of a learning curve. Resolution If you are attempting to create a custom report the most difficult piece of information is determining what Tables store which information.  To get definitions of Table Rows, run the provided Database Schema report in the Web Reports browser.  This will show primary/foreign key relationships as well as give you information on what is stored in each column. Information on Extended Trend Logs is stored in the tbLoggedEntities table and the tbLogTimeValues Tables.   Additional Metering information can be found in tbMeter, tbMeteringLogFilter, tbEntityData and tbEntityRelation

Issue Performing Load Sources in the EcoStruxure ETL tool causes errors with the following headers:   There was no endpoint listening at http://localhost:8080/EcoStruxure/DataExchange that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. The HTTP request is unauthorized with client authentication scheme 'Digest'. The authentication header received from the server was 'Digest realm="ews@SxWBM",qop="auth",nonce="AEEE5A9347E49ECADC753B5AA17EECE0",OPAQUE="5B4718"'. Product Line EcoStruxure Building Operation Environment EcoStruxure Energy Expert (formally Power Manager) Enterprise Server Automation Server Cause The EBO EWS Extract Task settings are incorrect in regards to the EcoStruxure ES or AS that it is trying to access.    There was no endpoint listening at... This error is due to the use of the incorrect port numbers in the EWS Web Service URL.   The HTTP request is unauthorized with client authentication scheme 'Digest'... This error is due to the use of the incorrect admin Username and/or Password.  Resolution The settings of EBO EWS Extract Task need to be verified and corrected.    Click on the Tasks tab in the ETL tool and select the "EWS Extract Task". The extract task settings will be displayed on the right side of the screen.                                                                               Verify that the port number in Web Service URL address corresponds to the port number being used by the ES or AS  Verify that a valid Username and Password has been entered into the EWS Web Service User Name and Web Service Password fields. 

Issue When evaluating Inet Transition sites, a common error seen when uploading I/NET controllers under the  Inet Interface is an upload failure.  The Background Status and trace log will contain a changeset error as shown below: UploadDevice failed to process changeset on link: 93 station: 10, type index: 17 cannot continue upload Product Line EcoStruxure Building Operation, TAC INET Environment Ecostruxure Building Operation Inet Interface  Cause Understanding the ChangeSet Indices used by the developers will help pinpoint where the issue is originating from.  The message typically isolates the Link and Station but does not identify where within this controller the problem may lie.  Resolution The current list of ChangeSet Indices are listed below and attached Changeset_index.txt Index Affected 9 DCU passwords, States, Eng units, Conversion Coeff., Controls, Holidays, DDC history, Override access, Sunrise/Sunset 11 Points 15 Action message, DCU DDC, Event sequences 17 Calculation 19 Event extension 21 Extension general (can be one of: Runtime, Consumption, or Alarm inhibit - depends on DCU type) 23 ATS 25 ATC 27 Extension application (can be one of: Demand, ORB, ORBEM, UC, LZ, LC, Elevator - depends on DCU type) 29 Trend 31 Lookup table (raw data) 33 Demand load (raw data) 35 MCU 37 MR DDC 39 AIC sequence (raw data) 43 LCD page, Istat param, IAS (raw data) 45 Access control (raw data) Note: "raw data" indicates user cannot manipulate in EBO but it is uploaded and save in raw form to allow for a download/restore Working with the example shown in the Issue, the message indicates a changeset value of Index: 17.  Using the attached list, Index 17 indicates that the issue is within the Calculation Editor. Using the SAV file from the site and working offline within I/NET open this SAV file and check each of the editors, in this case, calculations. In most cases, it will either be an invalid character or invalid point address - which will be shown as 'blank' as seen below: Correcting this and updating the SAV file to the controller (Station Restore) will typically correct this issue. If the same error persists then please provide an Export of the Inet Interface and the SAV files of the controllers having this problem through your local support channel.   

Warning Potential for Data Loss: The steps detailed in the resolution of this article may result in a loss of critical data if not performed properly. Before beginning these steps, make sure all important data is backed up in the event of data loss. If you are unsure or unfamiliar with any complex steps detailed in this article, please contact Product Support for assistance. Issue How to bring a BACnet controller online after restoring a backup Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation Cause Customers may want to take a backup from a site and use it on other setups. If there would be any BACnet controller under the Backup, they may need to know the process of hosting the BACnet controllers under the restored backup on the physical BACnet controllers.   Resolution This video will demonstrate how to bring a BACnet controller online after restoring a backup. NOTE After matching up the Device ID of the BACnet controller under the restored server and the Object ID of the physical BACnet controller, if the hosting status shows “Not hosted”, users need to perform a "Repair Hosting". Please refer to Repair Hosting a BACnet/IP controller 

Warning Potential for Data Loss: The steps detailed in the resolution of this article may result in a loss of critical data if not performed properly. Before beginning these steps, make sure all important data is backed up in the event of data loss. If you are unsure or unfamiliar with any complex steps detailed in this article, please contact Product Support for assistance. Issue When adding a new Domain an error shows “Object does not exist – The domain “your Domain Name” does not exist, and the Domain is not created.   Using control panel Or using System/Domains folder Product Line EcoStruxure Building Operation Environment Building Operation Automation Server Building Operation Enterprise Server Building Operation Enterprise Central Cause A Content Type rule could be incorrectly configured Resolution Navigate to /Your Server Name/System/Content Types/Rules/ If there is a “*” in the “Container Name Pattern” of any of the rules, correct this or delete the rule.     Once completed, new domains can be added.

Issue If the AS is configured to get the time from an NTP server the customer need to know how often the AS will ask the NTP server for the time.    Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation Enterprise Central  EcoStruxure Building Operation Enterprise Server EcoStruxure Building Operation Automation Server (AS/ASB/ASP) Cause In version 1.4, the AS asked the NTP server 1 time per minute. Starting in version 1.5, this was changed so the AS is using the standard solution for the NPT protocol. Resolution When using the standard solution in the NTP protocol as the AS does starting in version 1.5, it depends on how much the AS drifts from the NTP server. The faster the AS drifts, the more frequently the time is updated.   For more information regarding Network Time, please see WebHelp article 6370 and corresponding articles. 

Issue When a local user belonging to the administrator group on an AS-P is logged in to the AS-P using Workstation the user can for example via a Link in a graphic access the system folder in the ES the AS-P is connected to.  The local user in the AS-P can even change the admin password on the ES. How can this be avoided? Product Line EcoStruxure Building Operation Environment Building Operation Automation Server Building Operation Enterprise Server Cause In EBO v3.2.1 and later versions, it is possible to restrict access of the logged-in user to only the server that they are logged into, i.e. it is possible to prevent access to the ES\Servers folder when logged directly into an AS-P that is a sub server of the ES, thus preventing access to the whole system. Resolution In the ES Control Panel open Security Settings: Mark the option "Restrict root permission to logged in server"

Warning Potential for Data Loss: The steps detailed in the resolution of this article may result in a loss of critical data if not performed properly. Before beginning these steps, make sure all important data is backed up in the event of data loss. If you are unsure or unfamiliar with any complex steps detailed in this article, please contact Product Support for assistance. Issue PCT client can't start properly with "Hardware virtualization is not enabled" error. Product Line EcoStruxure Building Operation Environment Building Operation Project Configuration Tool (PCT) (All Versions) Cause Hardware Virtualization is Disabled or not available for PCT Resolution  Install "Intel® Processor Identification Utility" then verify the status of "Intel® Virtualization Technology" from the Utility. Using the table below, you can see if your processor supports Intel® Virtualization(provided by Intel).  The above information can also be found on Intel® Virtualization Technology web page If Virtualization is disabled in BIOS then enable it from BIOS else identify other software utilizing the Virtualization and stop the application.  Use Win key or press the Windows Start button Type: cmd Select Run as Administrator  Verify command prompt window title bar is Administrator: Command Prompt Type: shutdown /r /fw/ /f  Press enter and the computer will shut down immediately forcing all applications to close (/f) and restart (/r) into firmware interface (/fw)   If the issue persists, the following article may provide the answer Knowledge Base article - PCT error Hardware-virtualization is not enabled-Please-enable.

Issue Unwanted hardware and other alarms received at Enterprise Server Product Line Satchwell BAS & Sigma, EcoStruxure Building Operation Environment EcoStruxure Building Operation Sigma Release 4_08 (Build 3_46_57) Cause Unwanted Sigma hardware and other alarms received at Enterprise Server. Resolution Navigate through the “Sigma interface”, to the controller (OSN) that the alarms need to be disabled from. Select the controller’s property (basic tab), Device monitoring can be enabled or disabled.     If you need to disable the alarms for multiple controllers, this can be done by multi selecting the required controllers, opening the property panel and change the setting there.  

Issue The BACnet Interface Contains a Yellow Exclamation Icon and when you hover over to read the tooltip it states, “Contains Unresolved BACnet Reference”. Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation Building Operation Multi-Purpose Controller Building Operation Multi-purpose VAV Building Operation Room Controller Building Operation IP-IO Cause There is a reference misconfiguration within the “Time Synchronization Recipients” under the BACnet Interface. Resolution Select and highlight the BACnet Interface then select the Time Synchronization Recipients TAB Compare the list Names with the list to the left under the IP Network Tree. In this example, we can see that MPV-9A is not a controller within my database under the IP Network_2. Highlight/Select the controller under Time Synchronization recipients and edit the details by clicking on the pencil icon. Within the Time Synchronization Recipient screen, we want to adjust this device to match the ACTUAL device located under our IP Network_2 named MP-9A_Roof. Click on the “three dots|ellipsis “to browse to the correct Recipient device identifier. In this example: Select the BACnet Interface > IP Network_2 > MPV-9A_Roof as this is the correct path for this device. At this point, we have the correct path under the Recipient device object reference. Adjust the Recipient name to match the BACnet name you configured for that device. In this example, it was set to MPV-9A_Roof. TIP: Click the BACnet button to fill in the recipient name field with the BACnet name of the device referenced in the recipient device object reference field. Click OK. If this is the only device you need to modify then you can click the SAVE icon. If you have more devices to adjust, then you will repeat the process until you're done with all the devices. You have now resolved the reference errors against the BACnet Interface.

Issue Testing Modbus device with a Modbus simulator. Product Line EcoStruxure Building Operation. Environment Building Operation Automation Server Building Operation Enterprise Server Modbus Protocol Cause The field device and Modbus registers can be tested with the Modbus simulator to ensure the device is set up correctly and communication is working. Resolution Once a device is tested with the Modbus simulator, the live Modbus device can be implemented with confidence knowing that the setup in the Server is correct.   Here you can download the Modbus Simulator    Review the following video to assist with the following: Run the ModRSim application Setup the simulator to display the values you need to test Adjust values checking that they are updated by the polling device Display the Modbus traffic and capture traffic if fault finding is needed.  

Issue Need to ensure that there are not any unresolved or invalid bindings Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation Workstation v1.5 and above Bindings Diagnostics Cause Bindings are invalid because they point to something that cannot be bound together or they are unresolved because the binding points to an object that is not in the database. Resolution From the Workstation run the Bindings Diagnostics to check for invalid or unresolved bindings.   Open the Control Panel To Check the Status of Bindings  click the option for Bindings Diagnostics.   Observe the Status to identify any invalid or unresolved bindings. Refer to the EBO Webhelp Binding Status Icons topic for more information Right-click the invalid or unresolved binding, edit the binding or view properties, and correct as appropriate.

Issue What mode must a LoyTec L-IP be configured to work with EcoStruxure Building Operation? Product Line EcoStruxure Building Operation Environment Loytec L-IP Building Operation Enterprise Server Cause The operating mode limits the capabilities of the LoyTec L-IP when used with an Enterprise Server Resolution Smart Switch Mode Ensure that the LoyTec L-IP is in Smart Switch mode. This is achieved by using the DIP switch settings for switches 1 and 2 in the ON position.     Reset Forwarding Tables Press the status button for at least 20 seconds. This will clear the forwarding group, the subnet/node forwarding, and the router domain table when used in smart switch mode. Important: If the L-IP is operated in smart switch mode and is moved from one location to another or if major changes to the configuration of the network are made, it is recommended to reset the L-IP forwarding tables Important: Wait at least 30 seconds after power-up of the L-IP before pressing the Status Button to ensure that the L-IP has booted properly!     For additional detail please reference the LoyTec L-IP user manual.

Warning Electrostatic Discharge Required: Always discharge static electricity from your person by touching metal prior to handling any hardware. Failure to do so may result in damage to devices. Issue Difficulty getting b3 controller online in order to replace a failed one Product Line EcoStruxure Building Operation Environment EcoStruxure Building Operation Continuum b3 Controller Cause A b3 controller has failed and needs to replace with the same model. Resolution Remove the failed b3 controller. In EcoStruxure Building Operation Workstation change the serial number of the failed b3 to that of the replacement b3. Install the replacement b3 and ensure the MSTP bus is connected so it autobauds to the correct rate. Then power it up. Remove the battery tab from the replacement b3 (if applicable). In Workstation right-click on the replacement b3 and select Device -> Commission. A green progress bar should appear with a success status message. In Workstation right-click on the replacement b3 and select Download all objects. A green progress bar should appear with a success status message. In Workstation right-click on the replacement b3 and select Device -> Backup to flash.