Building Automation Knowledge Base

Issue Are the 012 NPR’s Broadcast UDP/IP packets utilized by the control network applications? Environment 012 NPR Cause The only Ethernet broadcasts that will be used are standard ARP broadcasts for normal MAC to IP address resolution. The NPR requires a static IP address assignment. Resolution No. The Broadcast UDP/IP packets are NOT utilized by the control network applications.

Issue Does the MNL controller line have any built-in surge protection for main AC power? Environment MNL controllers Cause Design specification Resolution No main AC power surge protection is part of the MNL controllers' design.  It will have to be externally applied.

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 Services for assistance. Issue How do I change the power line frequency setting on the 7716 / 7718 / 7756? Environment I/NET  Hand Held Console (HHC) Cause How do I change the power line frequency setting on the 7716, 7718, 7756? Resolution Physically remove the I/O points from the controller. See TCON 096 for details. Using the HHC, press [Code] , 92, [Enter] to select the AC line frequency Press [Inc] or [Dec] to switch between 50 an 60 hertz Press [Enter] to accept your choice After downloading the software and database, place the external points on the 7716 (or 7718 and 7756) Place the controller on the LAN Note:  Code 92 is not required for any of the 779x Interface's. Entering this code on the Hand Held Console will produce the error LED to illuminate. 

Issue Xenta 100 has a discharge temperature alarm when in heat but the alarm limit can't be set high enough Environment Xenta 100 Cause In several parameters, the Xenta 100 plug-ins set limits on the range of valid entries which are tighter than the limits for that SNVT type. One example is nciDischAirMax on the 104-A. The plug-in sets the acceptable range at 32-104°F (0-40°C). The heated discharge temperature is likely to exceed 104°F. Resolution Open the LonMaker browser on the device Change the setting for the high alarm limit there. Values much higher than 104°F can be entered (limited only by the SNVT type).

Issue When adding a third-party controller to a Vista database, some SNVT values are not present in Vista. The unit commissions and functions properly in Lonmaker, but certain valid SNVTs are left out of the Vista database, such as nvoSpaceTemp on the Trane device. Environment Trane LCI-R rooftop unit Smart Controls SmartStat ST-35F LonMaker Vista Workstation Cause Some information in the XIF did not transfer properly to the Vista database. Resolution Locate the correct .xif file for the device Browse to the device in Vista Right click and select Properties. On the XIF information tab, select the button next to the xif file name and browse in the original .xif file. Refreshing your page values should now reveal all the valid SNVTs in the device.

Issue ZBuilder launches, displays the splash screen, and immediately minimizes. Environment ZBuilder Cause ZBuilder always launches minimized Resolution Do not wait for it to minimize to restore it. Click on the splash screen and that will prevent it from minimizing.

Issue What happens with the output VDC value if the measured value goes outside of the specified range?  Environment SPD310 SPD360 Cause The selected value is specified by the position of the jumper. Signal output is set to 0-10V. Resolution If jumper is set to 500Pa and read value exceeds this value, the output signal will still show 10VDC. Any control signal above 10VDC is marginal, and should not be used as a measurement reference.

Issue Do Sigma Integration Controllers have I/O. Environment IC Integration Controllers I/O Cause Customer requires a small number of I/O where the Integration Controller is situated. Resolution The IC3 does not have any I/O enabled and therefore cannot be used.

Issue When doing a binding using relative path the folder name is included in the binding. When clicking on the relative path button the binding looks like it should without the folder name but it is no possible to save it like that. Environment StruxureWare version 1.3 Cause In the folder name a space was used.   Resolution When taking away the space in the name the relative bindings looked like the should, no folder name in them.

Issue On a jobsite, an energy meter was converted from a pulse output to a voltage output.  Can the analog input be totalized in the associated MNL controller like the pulse input was previously? Environment MNL Cause Changes on-site Resolution Analog values cannot be totalized in the MNL controller.  The next best option is to send the real-time analog value to the area controller (i.e. Niagara UNC or ENC) via a nvo and use the features available at that level for totalization.

Issue PC locks with a GPF error message when modifying a slave time schedule Environment I/NET Time Schedule Editor Slave Time Schedule Cause The master time schedule point that this slave time schedule is referenced with, no longer exists. Resolution Delete the Slave ATS Re-add it with an existing point that has a Master ATS attached.

Issue MSDE Not Installing on a Windows 2000 Professional PC It gets to 98% and then quits without installing anything Environment MSDE Windows 2000 Professional Cause Microsoft network printer sharing settings are stopping the installation from completing. Resolution Open up My Network PlacesPrinter Go to Network and Dial up Connections Go to Local Area Connection Select the General Tab Uncheck the Files and Printer Sharing for Microsoft Networks Retry the install again. Once the software is installed, go back and check that box again so that Crystal Reports will run and print to a printer.  

Issue Customer has an older ENC-520-2 and has run out of memory for his station programming.  His ENC has only 128mb of memory, not the 256mb of memory in the current ENC-520-2 controllers. Environment ENC-520-2 or ENC-520-2-N manufactured in Rockford (SN xxxxxB) prior to BootFlash upgrade. Cause Manufacturing change. Resolution The base memory (128mb) version of the ENC-520-2 cannot be field upgraded to extended memory (256mb) due to other component changes on the controller circuit board.

Issue Database Older than Expected error. Environment I/NET Seven Cause Do you see this balloon error message displayed after an upgrade from one revision to another in the System Tray? This is caused by the database that did not properly upgrade.  Resolution Shut down I/NET and the I/O Server. Go to Program Files, I/NET, Db Create Utility. Select Upgrade Database. Put the SQL Admin password that was created when I/NET was installed. Click Start, in the dialog box, a line would be displayed stating that you are upgrading from build X.XX to X.XX depending on the upgrade. Once finished, restart I/NET again and that message would not be displayed anymore.

Issue The output window in XBuilder will show three different message types: Info Warning Error If an error is occurring during a Generate command, it may be difficult to locate the exact error in and among hundreds of warnings. Environment XBuilder Cause The "Previous Error" command when right-clicking in the output window will take into account both Warnings and Errors. Resolution Right-click in the output window of XBuilder Expand the Filter Messages option Uncheck the options for "Show Info Messages" and "Show Error Messages" The output window will now only show true error messages and it will be much easier to determine the error that is stopping the generate command from completing.

Issue Station Address conflict Error in I/NET after adding a controller Environment I/NET Cause Each Station must have a unique Station Address Resolution Check Network Configuration at the host workstation for an available Station address Using the HHC, change the station address to an open address.

Issue Can a digital clock be used to replace an analog clock on a SVT4201? Environment SVT SVT4201 SVT4251 Cause Can a digital clock be used to replace an analog clock on a SVT4201? Resolution A digital clock cannot replace an analog clock in a SVT4201, because the SVT4201 and SVT4251 have a slight difference in components used.

Issue In LonMaker drawing, the TAC device stencils have disappeared. Environment LonMaker Visio Cause Either the TAC ToolPack was not installed, or the stencil view has been closed. Resolution To open the TAC stencils, click on File menu, go to Shapes and select desired stencil group. If the stencil is not available from this menu, then the TAC ToolPack was not successfully installed.

Issue It may be desirable to the building management to remove web users and operators' privileges to change their own password. Environment Xenta Server Cause By default all users are able to change their own passwords. Resolution While the privilege that each user has to be able to change their password cannot be removed through standard configuration methods, it can, nevertheless, be removed through the FTP server of the Xenta controller. However, these changes will apply to all web users or to all operators rather than just specific users. Connect to the FTP of the Xenta 5/7/9xx controller by typing FTP://x.x.x.x (where x.x.x.x is the IP address of the controller) in the Windows Explorer address bar. Login with the root username and root password. Browse to the ftp://x.x.x.x/www/config/ folder and copy the either the file named operatormenu.xml or webusermenu.xml (depending on which type of user needs to be edited) and copy it to the desktop of the local machine. Open the ftp.cfg file with notepad on the local machine. If you are editing the web user file then delete the following lines: <MENU name="User Administration" value="/wm/useradmin" type="CFGDIR"> <MENU name="Change Password" value="/wm/useradmin/change_password" type="CFGPAGE"/> </MENU> If you are editing the operator file then only delete the following lines: <MENU name="Change Password" value="/wm/useradmin/change_password" type="CFGPAGE"/> </MENU> Save the file to the desktop without changing the name. In the FTP rename the original file by adding a "1" to the end of the name. For example webusermenu.xml would now be named webusermenu1.xml. This way you can keep the original file in the FTP if you ever need to revert back to it. Copy the newly edited file from the desktop to the FTP folder. If you are already logged into the Xenta server then log out and log back in. The menu should no longer be available. Important Note: If the system program is reloaded in the Xenta Server, these changes will be over-written and will need to be re-done.

Issue While opening a TGML graphic in webstation a security warning dialog box appears: 'Java has discovered application itemsthat could indicate a security concern'. Environment Webstation 5.1.X Java 6 update 19 and newer Cause Signed Java Web Start applications and applets that contain signed and unsigned items could potentially be unsafe unless the mixed code was intended by the application vendor. As of the Java SE 6 Update 19 release, when a program contains both signed and unsigned items, a warning dialog is raised. Resolution Mixed Code Protection Options for Users: User can manage how mixed code programs are handled through the Java Control Panel. To access the Java Control Panel goto, Start menu > Control Panel > Java Control Panel > Advanced > Security. The following screen shot shows the four levels of control available. See the Mixed code heading towards the bottom of the Java Control Panel. Below are the details of the available options. Enable - show warning if needed.This is the default setting. When a potential security risk is encountered, a warning dialog is raised. Clicking Yes blocks potentially unsafe items from running and may terminate the program. When the user clicks No, the application or applet continues execution with protections (packages or resources that are later encountered with the same names but have different trust levels, i.e., signed vs unsigned, will not be loaded). Enable - hide warning and run with protections.This option suppresses the warning dialog. The code executes as if the user had clicked No from the warning dialog. Enable - hide warning and don't run untrusted code.This option suppresses the warning dialog and behaves as if the user had clicked Yes from the warning dialog. Disable verification.This option is not recommended. This option completely disables the software from checking for mixing trusted and untrusted code, leaving the user to run potentially unsafe code without protections.