Building Automation Knowledge Base

Issue What is the supported DC voltage on Xenta controllers? Environment Xenta controllers Cause DC Voltage is available for power. Resolution The table below list the supported Voltage DC specifications for Xenta controllers For more information check Data sheets for Xenta controllers located on The Exchange.   Xenta Controller Volt DC Support 411 19-40Vdc 421 21.6-40Vdc 451 21.6-40Vdc 471 19-40Vdc 491 19-40Vdc 400 Series 19-40Vdc 300 Series 19-40Vdc 200 Series 19-40Vdc 500 Series 19-40Vdc 700 Series 19-40Vdc 900Series 19-40Vdc 101 No Vdc Support 102 No Vdc Support 103 No Vdc Support 104 No Vdc Support 120 series No Vdc Support

Issue What if any voltage can be measured on a Micronet 2000 U-Bus? Environment MicroNet 2000 U-Bus communication Cause Information about voltage helps implement multiple MicroNet 2000 controllers in U-Bus communications interface. Resolution The U-Bus is a Wired-OR open collector communication bus talking at 2400 baud. The MN-ASDI has the U-Bus current source.  It supplies the current for the U-Bus communications. It should supply about 45 ma. with short circuit protection. Under normal communications, the U-Bus voltage will be around 15 volts +/- 2 volts when measured with a voltmeter.

Issue Is it possible to calibrate a Controlli TQ-A31 Air Quality sensor? Environment Controlli TQ-A31 Cause In field calibration procedure. Resolution It is not possible to calibrate the TQ-A31 sensor on the field. You should read a 0..10Vdc voltage between B and C terminal. If the signal between these two terminal is not in the 0..10Vdc range than it can be the product is defective and therefore I suggest you to send it back to us through the usual claim system.

Issue SysmanSMS stops sending SMS from Vista Environment SysmanSMS Vista   Cause It is not uncommon that anti-virus software perceives perfectly clean files as viruses. This is a growing problem as the amount of viruses are continuously growing, and the likeliness that they may share similarities in the code with a SysmanSMS file thereby increases.   Resolution Check if the terminal is running an antivirus, and look in its quarantine. Recent updates to some antivirus applications incorrectly identify parts of the Sysman application as a risk. Investigate the antivirus' quarantine folder and note the files and paths which they originally came from. Restore the quarantined files either using the antivirus' restore feature, or manually return them to their original locations. Restart the Sysman services In Windows services, restart TAC Vista Server and Workstation  

Issue Xenta 102-B nviManOverride allows for flow or percentage overrides. But since this controller is intended to be used along with a Belimo flow controller/actuator, how do these modes of operation differ? Environment Xenta 102-B Cause Flow control is not actually an option for this controller. Flow values will be interpreted as desired percentages of airflow. Resolution nviManOverride.state = HVO_PERCENT, nviManOverride.percent = 35% The controller fixes the Airflow output (Y1) at 35% (3.5V) nviManOverride.state= HVO_FLOW_VALUE All of the flow values are actually being treated as percentages ... there is no way to set it to a desired flow. (nviManOverride.flow X nciNomFlow / 100) is limited to 0-100% and sent to the Airflow output (Y1). Emergency Override can override these setting, as can setting the controller to slave mode (the overrides would have to be performed on the master controller in that setting). The way to release these states is to set the nviManOverride.state to any value other than HVO_PERCENT or HVO_FLOW_VALUE. Those are the only two values accounted for in the logic.

Issue Vista Workstation crashes when the content of a column in any View (Alarms, Events, Search Results etc.) exceeds 259 characters. Environment Vista 5.1.7 Cause In the unlikely event that the content of a column in a Vista View exceeds a limit of 259 characters, Vista Workstation crashes and must be restarted.  Vista Server is not affected. The problem was discovered while doing a search for TGML graphics, with the property "Bindings" selected.  The search returns one graphic on each row and all the bindings for that graphic are displayed in the property column on that row.  Resolution Upgrade to Vista 5.1.8, when available.  The issue is fixed by truncating the contents of any View column to 259 characters. The issue is highly unlikely to occur in normal use.  In the case of the Bindings search, the workaround is to use the "Change Reference" tool instead

Issue An AS-P (SpaceLogic Server) is crashing; just before the crash, the memory usage in the AS-P increases until it reaches a level where the AS-P crash.  Product Line EcoStruxure Building Operation  Environment Building Operation Automation Server Premium (AS-P) Cause The issue was caused by a Notification report which was located in the ES to which the AS-P was connected, Every time this report was run, the AS-P crashed after a while.  This report included a search of all Modbus points in the system and all properties of the Modbus points. When running the report, the ES was setting up a lot of subscriptions to the AS-P in a very short time period. The AS-P could not handle this huge amount of subscriptions and crashed after a while when trying to process all subscriptions from the ES. Resolution In this particular case, the AS-P had around 2000 Modbus points. When the Notification report was running, the search for these 2000 Modbus points and all properties, which were around 20 per Modbus point, caused the ES to set up around 40 000 (2000*20) subscriptions to the AS-P in a very short time period, and it crashed. To solve this issue, the number of Modbus points in the AS-P was reduced to below 1000, and then the AS-P could handle the number of subscriptions (1000*20=20000) with no crash.   When running a Notification report, including a search, be careful not to search for too many objects and properties in the same report, like in the example above when a search was done for all Modbus objects and properties in an Automation Server.   This is only a problem when a search is done via a Notification report if doing a search from Workstation that is made differently and will not set up a subscription in the same way.

Issue SevenTrends custom report - portions of the printed report are blank Environment   SevenTrends Report Cause The links between your database tables may not be correct or you may be sorting the wrong tables. Resolution The links between your database tables may not be correct. Check your links. You may be sorting the wrong tables. Make sure you are sorting the tables that have the correct information.

Issue How long will a UNC-520 hold the date & time if AC power and the backup battery are disconnected? How long will a UNC-520 hold the date & time if AC power is disconnected but the backup battery remains connected? Environment UNC-520 Universal Network Controller Cause UNC-520 provide real-time clock and need to maintain the information during power failures. Resolution Approximately one hour. This is done by a 1200 µF 10 Vdc capacitor that backs up the real-time clock chip. Over one month.

Issue ZBuilder will not open on certain commissioned Xenta 121s in Lonmaker. It will open on others in the same network. Environment ZBuilder LonMaker Cause Incorrect or corrupted configuration parameters prevent the ZBuilder plug-in from opening on specific Xenta 121s. Resolution Right-click on the device in LonMaker and choose Browse Take a screen capture of the various settings that will need to be re-entered Re-commission the Xenta 121 controller with default values (this will erase any configurations that have been made) ZBuilder will now work correctly. Re-enter any previously configured parameters

Issue How do I reset the view of the System Plug-In  to the original look. Environment System Plug-In Cause They folder pane has been modified and now the default layout is required. Resolution A reset to default will be required to get the original settings These steps will reset the view to default Open the System Plug-In Under the file menu select Default Settings A message will appear that "The command requires a restart to take effect." Shut down the System Plug-In Restart the System Plug-In  with the original default setting is applied

Issue What is the switching level resistance for a digital input to be seen as 1 in a Xenta 411/412 I/O modules Environment Xenta 411/12 Cause Integrating third party devices with Xenta 411/412 I/O modules. Resolution The switching level resistance for a digital input to be seen as 1 in a Xenta 411/12 is around 2000ohm

Issue The status of a Lon binding states locked.  How can it be changed to bound?    Environment R2, WorkPlace Pro Cause Binding is locked. This can be done at the time the node is learned or a network variable can be locked on the property sheet of the node. Resolution The Network Variable bound to the link will have to be unlocked to change the link to bound. Open the device property sheet that’s associated to the locked link Select the device tab and LonProps tab. Select and expanded the Snvt that’s associated with the locked link Unselect “Locked” and click Apply. Open LonDeviceManager under LonWorkService Highlight the device and select UpLoad Check boxes: “Upload binding info”, “Add links” and “Upload config data” and click Apply - DO NOT check “Lock existing bindings”   The link status now read bound.

Issue Created new bCX and can't see any of the system objects like system variables Environment CyberStation bCX4040 ACX57xx Cause CyberStation failed to fully create the new controller object in the database.   Resolution Delete the newly created controller from the ContinuumExplorer. Restart CyberStation. Create the controller again.

Issue Can individual terminals be purchased for the MNL-10Rxx, MNL-15Rxx, or MNL-20Rxx controller? Environment MNL controllers; MNL-10Rxx, MNL-15Rxx, or MNL-20Rxx Cause Replacement parts ... Resolution The individual terminals are not setup in the system for purchase.  The MNL-10Rxx, MNL-15Rxx, or MNL-20Rxx controller base assemblies are available for purchase under the following part numbers (MNL-BASE-100, MNL-BASE-150, MNL-BASE-200).

Issue The MZ20A actuator stops controlling, and the Analogue Output remains at zero volts. Environment MZ20A MZ20A-R Actuators Surface Mount Cause If the controller power and battery switches are switched off, then when the power is switched back on, the Analogue Output remains at zero volts. Resolution To prevent is issue from occurring, it will be necessary to install a 2K2 ohm resistor between each channel and the common zero volt rail, as shown in the picture below.   Add the 2K2 Ohm resistors to the channels controlling the MZ20A actuators. These resistors do not need to be a close tolerance; a Carbon Film ¼ watt 5% is acceptable, (RS Stock No.135-881 or similar). Note – The MZ20A, are the only actuators that we are aware of that require this modification, therefore if the actuator is changed to another type, the resistor should be removed again.

Issue  Temporary groups can't get a PM time, only AM Environment I/NET Cause The time are using US settings AM/PM on for example a European PC Windows don't use AM/PM Resolution Enter Control Panel and choose Regional and Language Settings On first tab click Customize Choose tab "Time"  Set AM and PM symbol to AM and PM Click OK Restart I/NET IO server and try again.

Issue The Sigma Log configurations are not visible in the configuration window. Environment Sigma Logging Configuration LogCNF.rec Cause The LogCNF.rec file has not been upgraded when the site was upgraded to Sigma 4.05 SEB. Resolution Shutdown the Sigma client and server. Copy a backup of  the LogCNF.rec file to  the C:\Sigma\Data\Server???\ folder. Where ??? is the server number. Run C:\Sigma\BinUtils\SigUpgrade.exe Restart the Sigma server and client and check the log configuration.

Issue Requested Clients window shows a remote client as being off-line. Environment Sigma Clients Remote Requested Clients Off-line Cause Sigma defect 3174 - The remote client status as shown in the "Registered Clients" window, may be incorrect. This is caused by the remote client being started before the local client.. Resolution This issue has been corrected in Sigma release 4.05 SEB, upgrade the site to this release or later. If an upgrade is not possible then Shut down Sigma and re-start the local client first.

Issue TreeTech 3.1 is installed on a Windows 7-32 bit computer.  After receiving the unlock code and entering it, a pop-up error window appears stating "Cannot Access Registry". Environment TreeTech 3.1 Windows 7-32 bit Cause The Windows user account was not configured for a password. Resolution Modify the Windows user account to ensure it has administrative rights and that it has a non-blank password.