Building Automation Knowledge Base

Issue Need to save the application, configuration and COV link data for an MNB-controller so that in the event the controller fails, all the information can be easily reloaded into a new controller. Environment MNB family controllers WorkPlace Commissioning Tool, version 5.7.2 or newer Cause Need to save the application, configuration and COV link data for an MNB-controller so that in the event the controller fails, all the information can be easily reloaded into a new controller. Resolution The Backup and Restore facility of WorkPlace Commissioning Tool allows the user to backup the complete controller application, configuration, flow balance and COV link data for a single or multiple controllers or restore of a single controller on a given network in a simple operation.  The procedures for using the Backup and Restore functions of the WPCT are included in the WorkPlace Tech Tool version 5.7.2 release notes.  The Backup and Restore documentation is available via this WorkPlace Tech Tool release 5.7.3 Release Notes from The Exchange Download Center.

Issue Customer wants UNC to calculate times to turn outdoor lights on and off. Environment I/A Series (Niagara) R2 (any version) Cause Customer request for Scheduling functions based on SunRise and / or SunSet. Resolution There is a program called "SunClock" that be used for that purpose. Here is a brief overview of using program modules, if you are not familiar with their use. Create a folder, such as MyProgLib, for holding your program modules under the Niagara release folder: Extract the SunClock.sns file from the attached zip file and place it in the folder you created. Open WorkPlace Pro and open the UNC station into which the program module is to be placed. Open the Local Library and navigate to the folder you created in step 1 above. Copy the SunClock.sns module. Paste the module into the desired container within the UNC station. The SunClock program module has the following outputs: sLights        BooleanStatusType     Status Output On between LtsOn and LtsOff times     pLtsOn         BooleanPriorityType   Priority Output to turn lights on pLtsOff        BooleanPriorityType   Priority Output to turn lights off SunRiseTime    DateTimeType          Calculated Sunrise Time SunSetTime     DateTimeType          Calculated Sunset Time LtsOn          DateTimeType          Calculated Lights On Time LtsOff         DateTimeType          Calculated Lights Off Time The program uses the following properties to control its operation: LtsOnPriority          Priority level for turning lights on LtsOffPriority         Priority level for turning lights off Latitude               Geographic Latitude of location Longitude              Geographic Longitude of location SunRiseOffset          Minutes before sunrise to turn lights off SunSetOffset           Minutes after sunset to turn lights on DSTEnable              Enable Daylight Savings Time calculation DSTBeginWeekOfMonth    Week of month that DST starts, 1=first DSTBeginDayOfWeek      Day of week that DST starts DSTBeginMonth          Month of year that DST starts       DSTEndWeekOfMonth      Week of month that DST ends, 5=last DSTEndDayOfWeek        Day of week that DST ends DSTEndMonth            Month of year that DST ends Notes:  Enter Latitude as a positive number for locations in northern hemisphere Enter Longitude as positive number for locations west of prime meridian  Enter negative offsets to set control times after sunrise / before sunset      

Issue In a Niagara G3 station, attempts to send email fail with message:  invalid address error. Environment Niagara G3 Cause If spam filter is enabled the SMTP server will not route email, as long as the Reply to parameter is empty.  It will treat the message as spam. Resolution The Outgoing account under the email service should have an email address listed under the Reply to parameter. If an account is required in the Outgoing Account parameter, for example:  joe.jones@acme.com, the same email address can be entered in Reply to parameter. If no Account is required for the SMTP server to route email but the spam filter is enabled, enter a fictitious account.

Issue A seven day schedule has been setup in the MNB-1000 using WorkPlace Tech but I don't see any way to set the controller time? Environment WorkPlace Tech 5.X, Commissioning tool Cause The time and date in the MNB-1000 cannot be defined using WorkPlace Tech. Resolution Open the WorkPlace Tech Commissioning tool, locate the desired controller in the Device list and open the Device Properties for that device.  On the Device Properties - General tab there is a "Device Clock>>" button used to synchronize the MNB-1000 to the PC's time and date.  This is also where the Time Zone is defined for the MNB-1000.

Issue Need to write a setpoint value from one controller to the setpoint of a different controller but the receiving controller does not show up in the Link Builder Client list. Environment I/A Series Workplace Tech Commissioning Tool - Link Builder Cause Only controllers that contain AVCOV or BVCOV objects will show up on the Link Builder "Client" side.  Resolution Link Builder "Server" objects can only link to AVCOV or BVCOV objects in a "Client" controller.  Once an AVCOV or BVCOV object is created in a controller that controller will show up in the "Client" list.  A setpoint value from a "Server" controller can then be linked to a AVCOV object of a client controller and used as desired in the client controller.

Issue Workplace Commissioning Tool is showing a yellow triangle with red exclamation point on an MNB-1000 controller icon. Environment WorkPlace Commissioning Tool version 5.x.x MNB-1000 controller Cause The yellow triangle icon indicates that there is a firmware or Remote I/O Status issue on the RIO bus of that MNB-1000 controller. Resolution There are three ICON overlay symbols that can be displayed over the device icon in the WorkPlace Commissioning Tool.  These symbols are defined in the Device Icons table of Chapter 1 of the I/A Series MicroNet Commissioning Tool manual, F-27358.  Further information regarding the reason for the display of the Remote I/O Warning (yellow triangle with exclamation point) is found in Table 6.1 of that manual.  This document is installed along with the WorkPlace Tech Tool software package and can be accessed from the Help menu of the Commissioning Tool. Any R-I/O module status except Communicating OnLine is reported with the warning symbol being displayed overlaying the MNB-1000 device icon.

Issue No link LED on a Desktop's and Laptop's Network Interface Card (NIC). Environment Windows OS Cause Network interface card has power management feature enabled.  This will shutdown the network interface card if no activity is present, battery is low on power, or battery is intermittent. Resolution Disable power management features under Device Manager Network Adapters. 

Issue Can an internal modem be installed in the field on a Niagara R2 UNC, if so, what is the part number? Environment Niagara R2, UNC-410, UNC-520 Cause NA Resolution An internal modem can be field installed on an UNC after purchase. No license changes are required. Both the UNC-410 and the UNC-520 uses the same part number, UNC-410-MDM. Reference the Replacing the Modem section of the TAC I/A UNC-xxx Installation Instructions documents for details on installing the internal modem. UNC-410 (document #F-27321) UNC-520 (document #F-27391)  

Issue Hardware wizard has been run in the WorkPlace Tech Tool for this application and it shows that the application is configured for English units (Degrees F, etc.), not metric units (Degrees C, etc.) but some of the points still read in metric values. Environment LON Controllers WorkPlace Tech Tool software, version 5.x (or newer). Cause When a WorkPlace Tech Tool application file is upgraded from WPT release 4.0.x to WPT  5.x.x, it is possible that some information defined by the use of the Hardware Wizard may not migrate properly.  This problem has only been noted occasionally in applications migrated forward from WPT 4.0.x. Resolution A two step process is required to insure that the Hardware Wizard data inconsistencies are corrected in the application file. Run the Hardware Wizard and change the engineering units to Metric. Click [Finish] to save the changes.  Compile the application but do not download it. Run the Hardware Wizard again and change the engineering units to English. Click [Finish] to save the changes. Run the "Rebuild Application" function from the Application menu to reconstruct (and clean) the application database. Save the application file then compile and download the application to the controller. 

Issue When air temperature falls to 30 degrees F, the output values calculated by the Enthalpy object are incorrect as compared to performing manual calculation verification or humidity measurement Environment IA Series MNL-800 controller WorkPlace Tech Tool (any version) Cause The Enthalpy object limits the allowed range of its input values so as to maintain the resolution of the values it calculates.  These range limits are set based on the temperatures typically encountered when calculating enthalpy for mixed air, return air and supply air needs in air handlers. Resolution The following limits are used when processing the Enthalpy object inputs: Dry Bulb Temperature:  32 to 120 Degrees F (0 to 48.9 Degrees C) Dewpoint Temperature: 32 to 120 Degrees F (0 to 48.9 Degrees C) Relative Humidity: 1 to 100% Barometric Pressure: 19.94 to 39.79 in-Hg (506.5 to 1010.7 mm-Hg) Input values outside the ranges listed will be processed as if they were clamped to the listed limit.  For example if the air temperature (dry bulb) was 26 degrees F, it will be processed as if the temperature were 32 degrees F.

Issue When attempting to start the Niagara G3 AX Lon Tunnel Service, the following pop-up error appears: Could not start the Niagara AX Lon Tunnel service on local computer Error 1075: The dependency service does not exist or has been marked for deletion Environment Windows XP Niagara G3 Cause Two possible causes: Uninstalling WorkPlace Tech 5.7 and installing WorkPlace Tech 5.8. Installing a newer version (3.6.x) of the I/A Series G3 Software. Resolution Remove and re-install AX Lon tunnel software.

Issue The Echelon U10 USB LON adapter (part number ECH-75010R) does not include an interface cable.  Is a cable available with the proper connector for the MNL series controllers? Environment Echelon U10 LON network adapter Cause The Echelon U10 USB LON adapter (part number ECH-75010R) does not include an interface cable.  Is a cable available with the proper connector for the MNL series controllers? Resolution WPIA-CBL-1 This cable is available via iPortal.

Issue The AcquiSuite A8812 responds with Error 11: Resource Temporarily Unavailable. Environment Niagara G3 / R2 Cause The AcquiSuite A8812 internal I/O module (Analog and Pulse inputs) uses Modbus address 250. This is not a legal address for a modbus slave device or ID. Valid Niagara addressing is from address 1 to 247 as stated in the Modbus protocol documentation. Resolution The Acquisuite Obvius LLC company offers a Flex I/O module that can be addressed between 1-247.

Issue How does unoccupied heating mode work on a Type 2 Mode Control point in DMS Microsmart? Environment DMS Microsmart Cause Perimeter radiation valves are not controlling properly overnight.  The space temp is too warm in the morning when occupancy begins. Resolution The Heat/Cool Differential establishes the daytime (occupied) heating setpoint by subtracting its value from the daytime (occupied) cooling setpoint. Example: Cooling Setpoint = 74°F Heat/Cool Differential = 4 (meaning the heating setpoint is 70°F) Cooling Night Setup = 80°F (this value must be higher than the daytime cooling setpoint, which in this example is 74°F) Heating Night Setback = 65°F (this value must be lower than the daytime heating setpoint, which in this example is 70°F) Both of these setpoints require a level 1 STOP command to engage.

Issue Customer is adding newer MNB-1000 controllers to an existing network. Will there be any communications issues caused by having different firmware versions? Environment MNB-1000 controllers on BACnet-IP or BACnet-Ethernet See Resolution section for specific firmware versions. Cause Adding new controllers to existing BACnet network. Resolution MNB-1000 controllers using firmware releases 1.502 through 1.511 are fully compatible at the BACnet-IP or BACnet-Ethernet communications level.  (NOTE: Future firmware releases should also be compatible but this document will be updated if necessary.) Firmware revisions to the MNB-1000 controller did not change the BACnet-IP or BACnet-Ethernet protocol as the underlying protocol is defined by the BACnet standards. Since these versions are all in compliance with the relevant BACnet standards, they will intercommunicate properly. Some intermediate firmware revisions may have implemented improvements in the use of the communications protocols to improve communications reliability or to reduce communications overhead. 

Issue I/A Series G3 ASD driver exhibits excessive device initialization and recovery times upon a restart of the station or a power cycle of the ASD devices. Environment I/A Series G3, ASD Cause Driver not synchronizing baud rates to efficiently recover the devices on the bus. Resolution The tacAsd 3.6.47.4 module resolves this issue by improving the mechanism that synchronizes the baud rates between the station and the ASD devices. Download the file tacAsd-3.6.47.4 from The Exchange Download Center.

Issue More BACnet objects are being added to a UNC-520. Is there a way in Niagara R2 to run a report that lists the BACnet objects’ instance numbers used in an UNC-520? Environment Niagara R2 all versions, UNC-520, UNC-410 Cause NA Resolution Niagara does not offer a report which lists the Instance numbers already assigned in an UNC. About the only way to determine BACnet instance numbers in the UNC is to do a search of the station’s XML file using "instanceNumber" as the search criteria.

Issue I/A Series R2 - Unable to delete users using the browser and Web User Admin screen. Users can be successfully deleted through WorkPlace Pro JDE, but not through the web browser.  This occurs in R2 versions 514 and 522. Environment I/A Series R2, Enterprise Server Cause NA Resolution The issue is resolved in R2 versions 527 and higher.  The excerpt from the R2 527/529 release notes state (Fixed - 10.1:6473 User cannot be deleted from browser when using Sun's Java Plugin). The solution is to upgrade the server to 527 or higher.

Issue Field office needs to access the Web Service page so that they can perform an Ethernet network packet capture for communications troubleshooting purposes. Environment MNB-1000 with firmware 1.50E and earlier only. Cause Field office needs to access the Web Service page so that they can  perform an Ethernet network packet capture for communications troubleshooting purposes. Resolution The Web Service page has been removed from the MNB-1000 Plant Controller firmware effective with release version 1.510.  The user-name is user The password is mnb1000

Issue The most typical use of the Provisioning service is to periodically back up ENC databases to the ENS.  The back up process works correctly but regardless of how the retention policy properties in the NiagaraNetworkJobPrototype are defined it will not remove the older back up files. Environment I/A Series (Niagara) all G3 releases Cause This is a known issue.  Software development is investigating the issue. Resolution Until the NiagaraNetworkJobPrototype retention policy functionality is repaired manual maintenance of back up files is required.