Building Automation Knowledge Base

Issue Too much LON communications traffic can cause LON communications errors. Product Line TAC IA Series, EcoStruxure Building Operation Environment I/A Series MNL 800 Building Operation Automation Server Premium LON Network  I/A Series R2, AX, N4 Jace LON Network Cause Sending output LON SNVT values too frequently or more often than reasonably needed. Resolution There are a series of NCI (configuration) objects that control the transmission and reception of these data values on the LON network. One of four NCI objects (nciSndHeartBeatA, B, C, or D) is assigned to each NVO object in the application program. This value regulates the periodic LON transmission queuing of the NVO object values for each binding. One of four NCI  objects (nciRcvHeartBeatA, B, C, or D) is assigned to each NVI object in the application program. This value regulates the fallback timeout for each NVI object value. If a value is not received via the binding in this time period, the NVI object value will revert to its application-defined default value. In an MNL-800 controller, there are two additional NCI objects that are used to regulate the flow of data onto the LON network. The nciMinOutTime object is used to throttle the transmission of all data values queued to be sent via bindings over the LON network. This NCI object sets the transmission time interval between each NVO value being sent on the network. The important fact here is that the product of the number of bound NVO values times this interval (nciMinOutTime) must be LESS than the shortest nciSndHeartBeatX (X=A, B, C or D) interval. For example, if the Send HeartBeat is set to the default of 120 seconds and there are 60 NVO SNVTs bound from this controller, the nciMinOutTime must be set to a value of fewer than 2 seconds.  The recommendation for setting this SNVT value one half the shortest nciSntHrtBr divided by the number of NVO SNVTs bound from the controller.   The nciMinPropTm object is used to regulate the transmission queuing of changing bound NVO object values. This timer acts as a time-based filter to prevent a rapidly changing NVO value, such as a constantly changing temperature, from overwhelming the communication capacity of the LON network. Typically this value is set to a value of 1 to 5 seconds. Additional information can be found in Chapter 6 of the WorkPlace Tech Tool 4.0 Engineering Guide (F-27254). BACKGROUND: This section is provided to give the reader a basic understanding of bound LON communications, as applied to LON controllers in general. Data communications across a LON network is accomplished by using a LON Network management tool to create a binding between a device with a data source (NVO object) and one or more devices with data receivers (NVI objects) in other LON controllers. The device containing the data source will send the bound data value at a periodic rate, as defined by the associated SendHeartBeat NCI object, and whenever the value of that object changes. If the NVI object does not receive a value from the sender (bound NVO object) within a specified time period, as defined by the associated ReceiveHeartBeat NCI object, the NVI object will use a local fallback value until such time as it receives a new value via the binding.

Issue The Universal Input real-time values on a MNL-800 (or Microzone II) are fluctuating unrealistically.  They rise, peak, drop, valley and then start over again very quickly.  It is similar to an AC wave pattern. It is happening with all the inputs no matter their configuration. Product Line TAC IA Series Environment MNL-800 Microzone II (Network 8000) Cause When an actuator is interfaced with a MNL-800 (or MicroZone II), and the UI cable shields are connected to earth ground (the SHLD terminal), the shield has a common mode AC potential that couples to the UI input. Only a very small signal (UI shield to signal common) is needed to result in objectionable UI signal fluctuation. Resolution Connect all drain shields on UI inputs to UI common (C terminal). Read additional solutions and a more descriptive cause in Technical Bulletin 01-36.

Issue How to search for points, names, or descriptions in EcoStruxure Building Operation Product Line EcoStruxure Building Operation Environment Building Operation WorkStation Cause The EcoStruxure Building Operation search feature can be performed on an entire database or on individual controllers / folders. This can help reduce the amount of time it takes to locate multiple points when creating mirrored points. Resolution How to search for specific names in EcoStruxure Building Operation Right click on the folder, object, or controller you would like to search in and click "Search. Note: When the search is narrowed down to specific areas of the database it will be able to complete the search faster than performing a full database search." In the search field type in the name that you are looking for. In this example the search is for snvt*. This will locate all points underneath the controller that begin with snvt in the point name. After a few seconds, depending on the size of the search area, the results will be displayed in the window to the right. In order to filter the search further, you can set different search parameters under the search field.

Issue What image formats are supported in a TGML graphic? Product Line EcoStruxure Building Operation Environment EcoStruxure ES, AS Vista Graphic Editor Cause Clarification of supported graphic formats required. Resolution When inserting a picture in a TGML graphic you can select the image file from the following file types: Bitmap, GIF, ICO, JPEG, Metafiles, PNG, TIFF  

Issue There are a number of reasons that RPC error occur on Cyberstation and troubleshooting steps are needed Product Line Andover Continuum Environment Continuum Webclient Windows XP Window Vista Windows 7 Windows Server 2003 Windows Server 2008 Cause RPC (Remote Procedure Call) errors happen on Cyberstation when the connection to the SQL database is not available Resolution There are many reasons that RPC errors can occur. A Google search of RPC errors will indicate that many applications have similar issues with these errors. An RPC error on a Cyberstation means that it has lost connection to the database for some reason and you will need to restart Cyberstation in order to recover. Below is a list of things to check when dealing with RPC errors on CyberStation.   Multiple Cybers Does the issue occur on multiple Cyberstations? Database Does the issue follow the database? i.e. load the database onto a test server or try a test blank database. Were some new objects recently added to the database when this started happening? Does reverting to a backup stop the errors? Increase Virtual Memory Right Click on My Computer> Properties> Advanced System Settings> Under Performance select the Settings button> Advanced tab> Under Virtual Memory click the Change button Recommended is 4096 Network disruption or slowness Networking  -  Verify all aspects of your networked environment.  This includes, but not limited to, slow networks, possible problems with your network interface card (NIC), cabling issues, switch/router issues, busy networks.  As you can see from the above definition of what RPC is it can be heavily reliant on the stability of the network and all it’s interfaces. Continuum does not support DHCP Multiple NIC cards – ensure there is only 1 NIC card enabled. No all NIC cards are created equal. Connections issue can be caused by an integrated NIC card of low quality. There can be settings within the NIC card itself that could affect consistent communication. Check the manufacturers website for details. Verify that there is no duplication of IP addresses on the network. Pull a cable and ping the address, if you still get a response there are 2 devices with the same IP address. WINS -  Verify your WINS settings and make sure there are no issues with the WINS Server.  This is known by Microsoft to cause RPC errors. DNS - Verify your DNS settings and make surer there are no issues with the DNS server.  This also is known by Microsoft to cause RPC errors. Verify that  the "TCP/IP NetBIOS Helper" service is running. Check and see if “File and Print Sharing” is enabled.  There are references in a lot of online articles, on RPC, problems that turning on “File and Print sharing” resolves RPC errors. Ping and SQL Is the SQL database still available to Cyberstation? From a DOS prompt> Ping IP (SQL Server) –t (continuous) Ex. c:\> ping 192.168.1.5 –t Note the number of responses as well as the time in milliseconds to respond. A local SQL server would usually be under 100ms. Check resources on the SQL Server (CPU, I/O Read/Write, memory usage, etc.) Windows Server 2003 Network card setting (This setting isn’t available in Windows Server 2008) Shut Continuum down on the machine having the problem. Start>Settings>Network Connections>Local Area Connections>Right Click and select Properties> Click on File and Printer Sharing for Microsoft Networks>Click Properties button> Select 'Maximize data throughput for network applications'. (Default is Maximize data throughput for File Sharing) Ok through all the screens and start Continuum and see if this makes a difference. XP/Vista/Windows 7 Start> Settings> Network Connections> Local Area Connection> Properties> Advanced tab> Windows Firewall - Click the Setting button> Click the exceptions tab Verify that File and Print Sharing is selected. File and printer sharing are disabled by default with XP SP2. There is no network throughput option in XP, Vista or Windows 7 like there is on Windows Server 2003. Windows Event Viewer Take a look at the Windows Event Viewer Application Log (Start> Run type ‘eventvwr’ or Launch Windows Control Panel> Administrative Tools> Event Viewer Examine the events and look for RPC error indications in the details. There may be a pattern of which executable is causing the errors. You may also see informational events that indicated momentary disconnects. A large number of these can indicate an issue with the Cyberstation being able to connect to the database consistently in a timely manner. Monitoring tools Run an acctrace.exe (C:\Program Files\Continuum) and a wireshark capture at the time of the RPC error to see the Continuum and network processing going on at the Cyberstation. Windows Process Monitor may also be helpful in seeing which process is having trouble. http://technet.microsoft.com/en-us/sysinternals/bb896645 Check the system for SpyWare and/or Viruses. Workgroup versus Domain connection An excerpt from the Continuum System Admin manual In a LAN Configuration, the Continuum CyberStation must be in a “Microsoft Domain “ type installation. This is because the Continuum CyberStation will use Named Pipes Interprocess Communication System (IPC). This is accomplished with Windows remote procedure call (RPC). In a Microsoft Domain model installation, once the session is established between the Continuum Cyberstations Client(s) and the SQL server it is a persistent connection once authentication is established.   In a Workgroup installation, the database connectivity session is re-authenticated and re-established for each database transaction. This results in much slower performance and an inconsistent connection. If you are running a LAN system using Windows 2003 server SP2/R2 and SQL 2005 try disabling the TCP Chimney Offload feature by following the below. Disable the TCPchimney setting on the SQL server and application server Windows 2003 SP2 comes inbuilt with a new network scalability pack which is supposed to accelerate the Windows networking stack. But this setting may not be compatible with all the network cards and it could pose connectivity issues as well. For more information you can refer to http://support.microsoft.com/kb/912222 http://support.microsoft.com/kb/942861   To disable this feature please take the following steps on both the SQL Server and application server.   Open up a command prompt on the machine. Run the following command: "Netsh int ip set chimney DISABLED" Change the values of the following registry keys to 0 a. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ EnableRSS   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ EnableTCPA Reboot the machine after the above changes. ==========================================================   Disable SynAttackProtect on SQL server: Windows 2003 Sp1 and Sp2 introduces this new feature which monitors processes getting high number of connections and if it detects that too many connections are being made, the connections will be rejected. Click Start, click Run, type regedit , and then click OK. Locate and then click the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters On the Edit menu, point to New, and then click DWORD Value. Type SynAttackProtect , and then press ENTER. On the Edit menu, click Modify. In the Value data box, type 00000000 . Click OK. Quit Registry Editor. Sound Card In some cases it was found that the built in sound card is causing the problem. If your not using WAV files for alarms then try disabling the integrated sound card in the BIOS.  If WAV files are being played then try disabling the integrated sound card and put in a PCI sound card. There have also been problems with OEM versions of the Operating system of the client machines.  A lot of vendors, like Dell, add additional applications to the systems they ship to assist them if they need to remote into the computer for troubleshooting purposes.  It is strongly recommended that these OEM versions of the Operating System is removed and install the system from a genuine Microsoft installation CD. Go to Control Panel-> Administrative Tools -> services, click with right mouse button Remote Procedure Call -> click properties. remote procedure call properties window is now open, go to recovery and you´ll see: First failure, second failure, subsequent failures -> choose : restart the service. In this setup the system will automaticaly restart RPC when something shuts it down. Check all your Firewall settings.  If possible turn off the firewall for testing and see if the problem goes away. Check to make sure there are no ports being blocked that the RPC Server uses.  See KB 908472 (http://support.microsoft.com/kb/908472) details the steps for specifying the RPC port range.  Also, be aware of the consequences of reserving the RPC ports. This has the potential to break other applications that assign ports in this range. KB 812873 discusses this, too. http://support.microsoft.com/kb/812873 Make sure all Peripheral devices like Network cards, Video cards, Sound Cards, etc. have the latest drivers for them installed. http://support.microsoft.com/kb/913384 Control Panel > AdminTools >Services and selected the Properties for Remote Procedure Call (RPC)  In the Log On tab, they changed the Log on as: to the Local System Account. It had been "This Account" NT Authority\Network Service. Is an EventNotification configured to send a page on alarm? If a PC running Continuum did not have a modem but on startup Continuum was trying to send an alarm with a page then accdataservice was crashing causing an RPC. Microsoft KB177446 article that describes in depth RPC troubleshooting procedures http://support.microsoft.com/kb/177446

Issue Continuum crashes with RPC error "The RPC server is unavailable" shortly after launching. RPC Server Error Product Line Andover Continuum Environment Cyberstation Cause Possible causes: Virtual memory, make sure virtual memory is set to recommended value. (see virtual memory requirement in Cyberstation installation document) Remote Procedure Call (RPC) locator service not started (Should be configured for automatic start) A resource needed by Continuum is not available. For example if an EventNotification is configured to page on alarm and there is no modem installed in the workstation then if an alarm is active on start up Continuum will encounter RPC error. Resolution Set workstation virtual memory to recommended value. Configure Remote Procedure Call (RPC) for automatic start. Make sure resource needed is available or reconfigure as needed.

Issue How to activate an embedded license for a SmartX Server using the Device Administrator when the computer with the Device Administrator is not connected to the internet. Product Line EcoStruxure Building Operation Environment Building Operation Automation Server Premium (AS-P) Cause Device Administrator is used to manage licenses on SmartX servers The following features of a SmartX server need licenses: SmartDrivers SNMP Notifications Personal Dashboards TimescaleDB MQTT Resolution Building Operation 2022 Note: The offline entry of the Activation-ID License items is not all visible - ONLY the first 5 are shown.  This makes entering this information impossible. This has been fixed in the Maintenance Release 4.0.2 of the Device Administrator.  After activating the embedded license offline and transferring this license to the servers, a license violation may be still shown.  The license status should update within 24 hours.  Perform a warm start and then a Refresh License Status on the selected servers to force this update.   If an error is seen in the progress status indicating ASEmbeddedAPI internal error during the offline activation, check the following Embedded license activation fails - Communities to correct the corrupted storage.   This video will show how to activate an embedded license for a SmartX Server using the Device Administrator when the computer with the Device Administrator and/or the server is not connected to the internet. IMPORTANT NOTES: You need to be connected to the SpaceLogic (SmartX) Server using IP (select +Add server on Device Administrator).  It cannot be connected via USB. Ensure always to run the Device Administrator with admin privileges. Select "Run as administrator." Should Device Administrator be running on a computer that has internet access, then there is no need to swap between online/offline computers.  The offline activation process can be run from the same Device Administrator with no need to change computers.  The offline workflow is always the same and detailed on the webhelp topic Offline Activation of Licenses Workflow  The video below shows version 3 licenses. In Version 4, there are a few more license features and quantities required to enter.  The following article may assist in entering this information. License Features list for version 3.0 and 4.0 Product names     At the end of the video session, you will be able to: Create a request file using the Device Administrator on an offline (to the Internet) computer. Activate request files from the Device Administrator on a PC connected to the internet. Send response files to the SmartX Server from the offline Device Administrator.

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 Unique SSL Root Certificate is self-generated using Device Administrator and it needs to be backed up, restored or transferred to another machine Product Line EcoStruxure Building Operation Environment Building Operation Device Administrator Building Operation Automation Server Cause Without a self-generated SSL Root Certificate installed on Windows OS that is running Device Administrator, Automation Servers with certificates installed will not be trusted. Use cases involve the transfer of data from one installation of Device Administrator to another and are not limited to: Transfer from a laptop used during startup to another laptop Transfer from a laptop used during startup to Enterprise Server machine Resolution Before starting ensure the following: Automation Servers will not be connected via browser for Webstation where a trusted certificate authority should be used to generate the certificates. Device Administrator has SSL Root Certificate installed and Automation Server is successfully communicating via HTTPS per Device Administrator Certificate Workflow  Backup data from Device Administrator to be transferred or restored using the following process: Backup Existing DA by exporting the SSL Root Certificate Click SSL Root Certificate Check Include Private Key Select the Destination Folder and ZIP filename Provide a password for the Export File Confirm the password Click Export button and verify Root CA Certificate has been exported to the destination folder  Backup Existing DA Server List Click Save  current server list or Save as new server list button Default location: C:\ProgramData\Schneider Electric EcoStruxure\Building Operation [n.n]\Device Administrator Default Filename: Servers.xml  Export Server list Click Export Server List button Provide a password and confirm password Click OK button  Restore data to the Device Administrator using the following process: Import SSL Root Certificate Click SSL Root Certificate Click Import Certificate Check import encrypted Archive Select file Enter password  Click Install to Windows Certificate Store to add to Windows for Enterprise Server or Device Administrator to be able to trust certificates. Install into Windows Certificate Store Restore the server list to replace the default list. Click Import server list Navigate to and select the file, then click Open Enter file password, then click OK Provide the default location in the address bar (see Default Location above), select Servers.xml, and click Save Click YES to replace the existing file Click YES to overwrite the existing file When server list import is complete, click OK         

Issue What does the Persisted Data mean in a Log Processing Trend Log and how does if affect the data? Product Line EcoStruxure Building Operation Environment Building Operation Enterprise Server v. 3.2 onwards Building Operation Automation Server Premium v. 3.2 onwards Building Operation Automation Server Bundled v. 3.2 onwards Cause As described in KB article Log Processing Trend Log records not transferred to Extended Trend Log, if Persisted Data is false the data is not saved to the database, but instead recalculated every time the data is required. This has a few effects on the Log data. Constantly recalculating the data can delay displaying the data. With Persisted Data False, the latest log value can be calculated, but if set to True the latest value will only be available after the end of that period as below: This can have an effect if the data is being used in WebStation Dashboard. In the example below the last 30 days is being viewed:   Resolution If the log data is required frequently and multiple logs are required, the operation of opening the logs may take a while. In that case it is better to switch Persisted Data to true. See Known Issue WebStation Dashboards take up to 20 minutes to open using External log Storage and Log Processor Trend Logs for more information.   The Log value for the latest period is likely to vary depending if the persisted data is true or false.

Issue Test and air balance procedure for balancing airflow Product Line TAC Vista, EcoStruxure Building Operation Environment Building Operation Automation Server Premium  TAC Xenta 102-AX  TAC Xenta 102-AX Plug-in Cause Each 102-AX controller must be calibrated on-site to report accurate airflow readings.  The LNS Plug-in provides this functionality, but it may not be immediately clear what the correct procedure is to perform a valid calibration. Resolution Check the firmware version of your 102-AX controllers in the plug-in, Node Configuration tab. It will be shown under Program Revision. If it's anything earlier than 2.1.6 then the calibration won't work properly. The airflow setpoint changes but the damper does not modulate to maintain setpoint in the calibration mode. Your options in that situation are to manually manipulate the damper to maintain airflow setpoint in order to facilitate calibration or upgrade the controllers firmware. Also verify that the box is set to "Pressure Independent" mode on the Unit Parameters tab.  Pressure dependent boxes do not use airflow sensors, and therefore cannot be calibrated. To balance the 102-AX in Building Operation version 1.4 or higher where the LNS plug-in is no longer provided, review the article TAC Xenta 102-AX TGML plug-in for Building Operation To calibrate airflow using the 102-AX LNS plug-in:  Go to the Node Configuration Tab. Select "Set Default m & b." This is a good idea before each calibration attempt since incorrect calibration values can make it more difficult to perform a valid calibration. (NOTE: The m & b values can be viewed under the Airflow Parameters Tab of the 102AX LNS plug-in...m = Velocity Pressure Gain & b = Velocity Pressure Offset) Select "Start Calibration." At this point the airflow setpoint should go to the minimum. You can check the Cooling Minimum airflow setpoint on the Airflow Parameters tab. The damper now modulates to maintain the minimum cooling flow setpoint. Watch the VAV Reading (Low) and wait for it to hit the minimum flow setpoint and level out. If the airflow is fluctuating a lot, it could be that the low setpoint is below the threshold the box can confidently supply. Or it could be bad placement of the flow sensor in a turbulent area of the duct. It can affect your calibration greatly if the value is fluctuating too much. A relatively level reading will provide a good calibration. When it levels out, measure the actual airflow with a highly accurate magnehelic hood. Enter the actual value into Reference (Low) and select "Continue." The damper now modulates to maintain the maximum cooling flow setpoint. Watch the VAV Reading (High) and wait for it to hit the maximum flow setpoint and level out. When it levels out, measure the actual airflow with a highly accurate magnehelic hood. Enter the actual value into Reference (High) and select "Finish." The new calibrated m & b values are shown. The gain (m) is shown in the format of multiplier/divisor. Divide the values to get a decimal format of the gain. The closer to 1 this value is, the less calibration was required. actually gains of 2 or more indicate probable airflow reading problems. It may be advisable to reset factory calibration values and try the calibration again. The box should now be displaying values very close to actual measured readings. Test the low and high flow during normal operation using the Status Tab, Right click on the Space Temp and override the space temperature to a value equal to or greater than the Occupied Cooling Setpoint plus half the Cooling Band to drive the airflow setpoint to the cooling maximum airflow setpoint (you can find the Occupied Cooling Setpoint and Cooling Band on the Operating Tab).  With the space temperature already in override, left click the Space Temp to change the space temperature without taking it out of override, and set the space temperature to the Occupied Cooling Setpoint minus half the Cooling Band to drive the airflow setpoint to the cooling minimum airflow setpoint.  With the space temperature in override, right clicking it will take it out of override.

Issue Communication of BACnet Protocol across different subnets Can see BCX 4040 on Infinity side but will not learn in on the BACnet side. Product Line Andover Continuum Environment BCX (4000, 4040) B4920 Continuum Workstation Cause BBMD configuration Resolution Typical Multi-Network BBMD Setup 1 In this Scenario, the controllers in Remote Building A cannot send or receive BACnet broadcast data from controllers or the Workstation on the Main Building Network.   Solution 1: Configure Building A BCX1-R as a BBMD, and Cyberstation as a BBMD  Typical Multi-Network BBMD Setup 2 In this Scenario, the controllers in Remote Building A cannot send or receive BACnet broadcast data from controllers or the Workstation on the Main Building Network. Solution 2: Configure Building A BCX1-R as a BBMD, and Main Building BCX1-CR as a BBMD Workstation BBMD configuration BACnetPreferences Located in the lower right hand side of the screen in the icon tray right click on the Continuum icon and select BACnet Preferences NOTE: After Workstation configuration and Bacnet Preferences have changed the Workstation will need to be restarted.    BCX BBMD Configuration Enable the BBMD on the configuration page Save changes and submit to controller After controller restarts select the BBMD link on the left side of the web configuration page. Enter the IP address for the BBMD device on the other side of the router After configuration of BBMD’s on each side of the subnet you will be able to receive and broadcast BACnet messages across an IP router. THE GOLDEN RULE HERE IS ONLY ONE BBMD PER SUBNET. Otherwise you’ll create a broadcast storm that that will not be good for the network performance and could possibly cause controllers to go offline. After successful creation of BBMD’s on each side of the router, go into Continuum explorer and perform a “Find new bacnet devices”from right click on the root.

Warning Hazard of Electric Shock: Remove all power from all devices before removing any covers or doors of the system. Disconnect power at the device and at the power source. Issue The SLO Label shows an incorrect value range for kL. Product Line Field Devices Environment SpaceLogic SLO series Lux sensor Cause The label on the SLO shows the incorrect value range for kL. Resolution SLO: The product specification sheet states the Ranges for the jumper as: - 0 to 500 lx and 0 to 20 kLx The range to 500 lx can be seen on the circuit board. The product’s label shows 0 – 4kL The manufacturer has confirmed the label is incorrect the value should be 500 lx, New labels will be used in production from August 2022.   SLR: The tense delivery situation during the pandemic, especially for electronic components, has forced the manufacturer to make technical changes to the SLR in order to stay able to continue to deliver reliably. The range has extended from 0.4 to 0.5 kLux. These changes are incorporated in the corresponding instructions, provided with the devices. New labels will show the extended range.

Issue How to print out alarms when they occur? Product Line EcoStruxure Building Operation Environment Building Operation WorkStation Cause Dot Matrix printers are no longer commonly used and alarm printing has been replaced by features such as SMTP email and Sysman text messaging.  Building Operation does not have native support for alarm printing. Resolution If alarm printing is needed, then a third party file to printer utility such as File2Print (https://community.se.com/) is required to print Building Operation alarms sent using write to file notifications.

Issue A program in bCX or b3 is writing/reading to/from a second device, the write/read operation is not working and the second device is not listed on the list of known devices in the bCX/b3 that has the program. Product Line Andover Continuum Environment CyberStation BACnet bCX b3 Cause Device is not answering to WHO-IS message. When a reference is made in a device (A) to a second device (B) a WHO-IS message is sent from A to B, when the I-AM is received the devices is added to the list of known devices. If no I-AM is received then the device remains unknown and cannot be listed, as a consequence write/read messages (among other things) will fail. In the screen shot below device b3.810 know about itself and one other device (b3.867). If a program in b3.810 performs a WriteProperty operation to a third device C, the WriteProperty operation can not succeed until C has been added to the list of known devices via the internal mechanism explained above. Resolution Use Wireshark to check whether the device with the reference is sending out the WHO-IS and more importantly whether an I-AM is coming back from the destination device. In the case that originated this ticket, the destination third party device would not consistently send an I-AM when operating at high baud rate, the MSTP baud had to be lowered to 19200 .

Issue What are the valid Electrical Types for the smart sensor input on a controller Product Line Andover Continuum, EcoStruxure Building Operation Environment BACnet b3 controllers Infinet i2 controllers Smart or Room Sensor Input b3/i2 controllers excluding b3/i2 608, 824 and 885V Cause What are the valid Electrical Types for the smart input on a controller? Resolution Input X (SmartSensor) valid Electrical Types are:- ACC_TEMP_DEGF ACC_TEMP_DEGC Digital Note If using a Smart sensor then ACC_TEMP_DEGF or ACC_TEMP_DEGC should be used The temperature range is limited, thus room sensors can be used but not duct or pipe sensors as the temperature range is limited to 0-50DegC  

Issue Preventing access to a controller via the built-in web server. Product Line Andover Continuum Environment CX9680 Cause Limiting access to controller configuration Resolution Starting in version 2.100028 of the CX9680 (NC2) controller the web server can be disabled using the following procedure: Access the controller Web Server through a Web browser (using the configured IP or if the IP has not yet been configured, by using 169.254.1.1) Select the “Controller Configuration” page Change the Web Server Port (default is 80) to 0 Click on the “Submit to Controller” button Select the “Commit Changes” page and click on the “Commit Changes/Restart Controller” button NOTE: To re-enable the web server the controller must be reset to factory defaults using the reset ip switch. NOTE: On a 99xx to disable or enable contact repair and there is a charge. A flash file can be sent.

Issue Which Infinet controllers support flash backup? Product Line Andover Continuum, EcoStruxure Building Operation Environment Infinet controllers i1 SCX, LCX, TCX & i2 Cause Not all controllers support flash backup. Resolution All i2 controllers can be backed up to flash but none of the i1 controllers SCX,LCX, TCX etc have flash memory fitted. Controllers with a grey icon (i2) on the Continuum Explorer view can be backed up to flash where the orange icons (i1) can not.

Issue Site has a third party BACnet router and B-OWS, want to connect brand new b3s on the MSTP of the BACnet router and configure an application in the b3s using the third party B-OWS. Product Line Andover Continuum, EcoStruxure Building Operation Environment b3 Third party BACnet system Cause Documentation Resolution Configuring a new b3 using a BACnet system other than Continuum or EcoStruxure Building Operation is NOT supported. Brand new b3s are shipped from the factory without a valid master MAC id, which means the b3 will not participate on MSTP communications until it has been assigned a valid mac id via a proprietary LEARN mechanism. b3s do not support dynamic object creation of IO points or programs which can only be created using Schneider Electric's Continuum or EcoStruxure Building Operation BACnet BMS.

Issue Certain Xenta controllers and I/O modules can accept 1.8k thermistor temperature inputs. Product Line TAC Vista Environment Xenta 121-FC Xenta 200 Xenta 300 Xenta 420A Xenta 450A Cause What is the temperature vs resistance curve of the 1.8k thermistors for Xenta 300? Resolution All Xenta controllers and I/O modules, except the Xenta 102-AX use the same 1.8k thermistor (type 1.8KA1). The following table shows details the Temperature vs. Resistance characteristics for this thermistor. Temp (°C) Minimum kΩ Nominal kΩ Maximum kΩ -50.0   60.87  63.88  67.03  -45.0   45.41  47.5   49.68  -40.0   34.23  35.68  37.2   -35.0   26.04  27.07  28.13  -30.0   19.99  20.72  21.47  -25.0   15.48  16.0   16.54  -20.0   12.09  12.46  12.84  -15.0   9.512 9.779 10.05  -10.0   7.541 7.733 7.929 -5.0   6.021 6.16  6.301 0.0   4.84  4.94  5.042 5.0   3.916 3.988 4.061 10.0   3.189 3.24  3.293 15.0   2.612 2.649 2.686 20.0   2.151 2.177 2.209 25.0   1.782 1.8   1.818 30.0   1.478 1.496 1.514 35.0   1.233 1.25  1.267 40.0   1.033 1.049 1.065 45.0   0.8698 0.8848 0.9001 50.0   0.7357 0.7497 0.7639 55.0   0.6251 0.638 0.6511 60.0   0.5334 0.5453 0.5573 65.0   0.457 0.4679 0.479 70.0   0.3931 0.4031 0.4132 75.0   0.3395 0.3485 0.3578 80.0   0.2942 0.3025 0.311 85.0   0.2559 0.2634 0.2712 90.0   0.2233 0.2302 0.2373 95.0   0.1956 0.2019 0.2083 100.0   0.1718 0.1775 0.1835 105.0   0.1514 0.1566 0.1621 110.0   0.1338 0.1386 0.1436 115.0   0.1186 0.123 0.1276 120.0   0.1054 0.1095 0.1136 125.0   0.094 0.0977 0.1015 130.0   0.084 0.0874 0.0909 135.0   0.0753 0.0784 0.0816 140.0   0.0676 0.0705 0.0735 145.0   0.0609 0.0635 0.0663 150.0   0.0549 0.0574 0.0599

Issue What is difference between valve rangeability and turndown ratio? Product Line Field Devices Environment Valves Cause Definition of the terms helps explain the flow outcomes. Resolution Rangeability - maximum controllable flow divided by minimum controllable flow Turndown ratio - normal maximum system flow divided by minimum controllable flow.   Rangeability is the inherent characteristic of the valve and turndown ratio is the installed characteristic.