Building Automation Knowledge Base

Issue Wiring a MD10B-24 / MD20B-24 actuator to a Climatronic CXT / CXR / CSC Actuator Environment MD10B-24 MD20B-24 Actuator Climatronic CXT CXR CSC Cause The Climatronic controller switches the O volt side of the 24 volt supply, but the actuators shows that it requires 24 volts to open and close. Resolution The Satchwell range of Climatronic controllers have always switched the 0 volt side of the 24 volt supply to control the actuator position. CXT Controller - Terminals 13 and 14 provide 0 volts to close or open the actuator. A permanent 24 volts is provided by terminal 37. For the complete datasheet, please click HERE. CXR Controller - Terminals 23 and 24 provide 0 volts to close or open the actuator. A permanent 24 volts is provided by terminal 37. For the complete datasheet, please click HERE. CSC Controller - Terminals 33 and 32 provide 0 volts to close or open the actuator. A permanent 24 volts is provided by terminal 37. For the complete datasheet, please click HERE. The MD10B-24 / MD20B-24 datasheet shows the wiring as follows; For the complete MD10B datasheet, please click HERE. For the complete MD20B datasheet, please click HERE. The above actuator wiring shows a 0 volt connection to the common connection (1) and a switched 24 volt connection (2 or 3). To connect the MD10B-24 / MD20B-24 actuator to any of the above controllers it will be necessary to connect the actuator as follows. Controller 24 volt  (37) to connection wire (1). Controller Open signal (14, 24 and 32) to connection wire (2). Controller Close signal (13, 23 and 33) to connection wire (3). Please note that the actuator direction can be changed by repositioning the switch on the front of the actuator.

Issue An update from 1.94 to 1.94 SP1 will generate an "Installation error! Microsoft ODBC SQL Server Driver SQL Server Implicit conversion from data type datetime to int is not allowed. Use the CONVERT function to run this query." Product Line Andover Continuum Environment Continuum Windows XP Windows 7 Windows Server 2003 Windows Server 2008 Cause A column in the db doesn't get converted properly SQL Server Implicit conversion from data type datetime to int is not allowed Use the CONVERT function to run this query. Resolution To correct this issue apply the following hotfix AFTER installing 1.94 SP1 but BEFORE running the database update Hotfix for DataBase Update Error

Issue The discontinuation of the SVT controller due to component obsolescence. Product Line Field Devices Environment SVT Optimiser 4201 4251 Cause What replacements are available for the SVT 4201 / 4251 controllers? Resolution Important Note - The replacement controller mentioned in this article is no longer available, and therefore a replacement for the SVT 4201 / 4251 is not available. The SVT controller range has been discontinued due to component obsolescence. The SVT controller was a basic optimiser that performed the start calculation using only an internal temperature sensor. There are no exact replacements for this controller available. What is available? The Schneider Electric DC1400 Optimiser / Compensator is the recommended replacement, but this is not a direct replacement. Differences in the controllers. The SVT controller provides only an optimum start, the DC1400 provides optimum start and stop. The SVT controller uses only a room temperature sensor for the start calculation, the DC1400 uses only a room temperature sensor and an outside temperature sensor for the start/stop calculations. The SVT controller has a dedicated "Boost" relay, which allows overriding of a CSC compensator, and control valve. This is an internal function with the DC1400 optimiser/compensator. The DC1400 has many other built in functions.   Controller wiring - Modifications will be required. SVT general wiring connections. Relay R1 is the main plant relay and relay R2 is the boost relay. To see the full controller details, please click SVT Optimiser DS2001 0210.pdf DC1400 general wiring details.   To see the full controller details, please click DC1400 DS2044A.pdf Controller Sensors As already indicated, the SVT controller uses only a space temperature detector, and this sensor is NOT suitable to use with the DC1400. The DC1400 controller will, as a minimum, require a room temperature sensor and an outside temperature sensor, meaning that extra wiring for the outside temperature sensor, and the sensor itself, will need to be installed. For details on suitable sensors, please refer to What sensors does the DC1400 optimiser/compensator require?

Issue Site looking to add some WorkStations with the ability to show Graphics but without the Graphic editor. Not sure which part number to order. Product Line EcoStruxure Building Operation Environment Building Operation WorkStation Cause Documentation Resolution V2 or higher, Enterprise Server or Enterprise Central license includes three concurrent client licenses (WebSation or WorkStation). For additional clients, order one or more of the licenses below. These licenses do not include any editors, the WorkStation will show the graphics but will not allow editing, order below part numbers:   If graphic or programming editing is required, you can order professional WorkStation license, which will add extra WorkStation with editors, or order Programming & Graphics Editor licensing, which will add editors to existing WorkStation Standard license.  

Issue Active sensors that have a 0-10V output can not be directly connected to a controller with a 0-5V input, what resistors and settings are required? Product Line Andover Continuum Environment All i2 and b3 controllers with 5V inputs, not applicable to the controllers with a 10V input i.e. the i2/b3920 & 810 which directly support the 0-10V sensors I/O Module UI8-10 XP Modules xPUI4, xPBD4, xPBA4.   Cause There is a requirement to calculate the appropriate potential divider resistor values and the settings for the upper and lower voltage in the input point configuration Resolution Download the Voltage Inputs LSM document, this document details the value of the 2 resistors to use in the circuit and the upper and lower voltage settings to enter in the Auto Conversion box in the input point, these will correspond to the sensor reading at 0V & 10V. For controllers that allow the pull up resistor to be switched out, ensure that it is in circuit for these setting to work correctly.

Issue Scenario 1 Attempting to log in to Web Client you are presented with an error message "Error - SOAP connection failed". SOAP-ERROR: Parsing Schema: can't import schema from   Scenario 2 Upon successfully logging in to Web Client you are presented with "Thank you for logging in" and then immediately presented with another message saying "Log out successful".   This continues in a circuit until it may allow you in but displays a partially populated page with no data showing. Product Line EcoStruxure Security Expert Environment Security Expert Server Security Expert Web Client   Cause The option "Use HTTPS to communicate with SOAP service" was enabled in the Web Client Installation Wizard and antivirus was dropping the connection because of this.   Resolution Uninstall and re-install Web Client without the  "Use HTTPS to communicate with SOAP service" enabled or Browse to the soap.connect.php located at C:\inetpub\wwwroot\SecurityExpertWebClient\include. Edit it using e.g. Notepad and change HTTPS to HTTP and change the port to 8030 so the Web Client uses HTTP to communicate with the SOAP service.

Issue Databases often have to be moved around or upgraded, especially on engineers laptops where they may do offline engineering. What is the best tool to use for this? Product Line Andover Continuum Environment Continuum Single User (Standalone) Version 1.82 and above with SQL Express (2005) Stand alone DB SQL Server Management Studio Express Cause The WinSQL software as used with previous Continuum versions with MSDE (2000) does not operate with SQL2005 and another method of accessing the database is required. Resolution After installing Cyberstation with a blank database and verifying correct operation, the next thing to install is the “SQL Server Management Studio Express” software a free Microsoft download, see link below and use the 32 bit version: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=c243a5ae-4bd1-4e3d-94b8-5a0f62bf7796 This will provide the same user interface as provided on a full SQL2005 installation as used on a LAN system. For Continuum V2.0 and above SQL2012 Express is used, both 32 and 64 bit versions of this are available from the following Micosoft download: http://www.microsoft.com/en-us/download/details.aspx?id=35579 There are 2 methods to transfer your database from one system to another, using a. Backup/ Restore or b. Detach/ Attach, both options are covered below. Alternatively you may already have one or other formats on backup media. To use Backup or Detach you will also need to install SQL Server Management Studio Express as per 1. above on the original computer. Backup Method - you will need to perform a full backup and then restore of the ContinuumDB on the original computer: Using SQLE Management Studio, Right-click on ContinuumDB -> Tasks -> Backup, add a destination where you want to save the .BAK file, Click OK. Detach Method – Detach (or stop the SQL) to allow the files to be copied on the original computer: Using SQLE Management Studio, Right-click on ContinuumDB -> Tasks -> Detach, Click OK. On your new system, make sure you have already created a new ContinuumDB using Database Initialization. If not, do this now - this creates the Database, SQL jobs, stored procedures, adds Andover97 as an admin and a lot of behind the scenes security settings. Stop Cyberstation if it is running. If you are using the Detach / Attach method b. then: Using SQLE Management Studio on the new computer, Right-click on ContinuumDB -> Tasks -> Detach, Click OK. Copy the backed up files to the Data directory your new server. It is advisable to take a copy of the blank database first. Path: C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data Using SQL Management Studio, now restore or attach the backed up database depending on which method is being used. Restore Method - Restore the backup over the top of the ContinuumDB on your new system: Right click on ContinuumDB -> Tasks -> Restore -> Database. Select "From device:" and add your Database file, making sure to tick the Restore checkbox to select the source. Next, go to the Options page and select "Overwrite the existing database" and press the "OK" button. Attach Method - Using SQLE Management Studio on the new computer, Right-click on Databases -> Attach, Press “Add” and select the ContinuumDev.mdf file, Press OK. The .mdf and .ldf files will be shown, press OK. The ContinuumDB will appear in the tree. Change the db owner with the below query using the sp_changedbowner stored procedure. Select "New Query" and copy the query text shown below. Run the query. use ContinuumDB go sp_changedbowner 'Andover97' go Run Database Initialization and update the newly restored database. Using Database Initialization from each Cyberstation, initialize your Workstations into the new Database. Run Cyberstation on all Workstations.

Issue Tooltip feature for TGML Graphics was hotfixed in Vista 5.0.3 (Hotfix 20) and was disabled later versions of TAC Vista based on customers requirement. Refer to TPA-MALI-08-0007.01 for more details Product Line TAC Vista Environment TAC Vista 5.0.3 and later versions. Cause By default, the tooltip feature in TGML Graphics was removed. Resolution To enable the Tooltip option in TGML graphics following these steps: The Tooltip snippet is available under Snippets > Basic Functions > Tooltip. If the editor does not have this snippet, download the attached Tooltip.zip snippet. Close all the TGML windows and Install the tooltip snippet Open the TGML editor and you can find the tooltip snippet under My Snippets Drag and drop the tooltip snippet on to the graphic objects window to see the tooltip feature. After drag and drop the tooltip snippet on to the graphic, the Metadata – TooltipContainer will be added to the object properties. Tooltip will now be available for this graphics Object. Repeat steps 4 and 5 for each other graphics Object.

Issue In this specific instance the site was upgraded to Continuum v1.94 and the Cyberstation OS upgraded to Windows 7 64 bit, fresh install. Local Administrator account was logged on to perform Database Initialization which succeeded and Continuum was able to start-up and connect to the SQL Server. Restarting and logging in with another windows user with administrative privileges results in being unable to connect to the database. Logging out and then in as Administrator and re-initializing the Workstation into the Database re-establishes the connection and Continuum is able to be run again. This fails again when another user is logged on. Product Line Andover Continuum Environment Andover Continuum Cyberstation Windows 7 64-bit Cause Windows administrative privileges are required to initialize and make a connection to the database. Resolution Run Database Initialization as an Administrator and re-initialize the Workstation into the Database. Shut down all Cyberstations. Right-click Database Initialization and select "Run as... Administrator".  In Win7 you may need to "Shift-right-click" and select 'Run as a different user...' Select Workstation, confirm details, input password and select OK.

Issue How to exchange EBO data via a SmartConnector enabled REST endpoint. Product Line EcoStruxure building Operation Environment Building Operation Enterprise Server Building Operation Enterprise Central Building Operation Automation Server Building Operation Automation Server Premium Building Operation Automation Server Bundled SmartConnector Cause Need to serve EBO data in a RESTful manner. Resolution The following video will illustrate how to: Create user account group and user with permissions required for web service client access. Enable the EcoStruxure Web Service server in the EBO server. Create and configure REST endpoint in SmartConnector framework. Use Swagger interface to review the API documentation. Test the Web service using a 3rd party testing tool. Things you need: Software EBO server with valid license (Enterprise Central, Enterprise Server or Automation server) EBO WorkStation. SmartConnector with valid license Tools SoapUI (to be used for testing)   For more information check "SmartConnector RESTful EWS Gateway" document at SmartConnector Server download center, and Troubleshooting Smart Connector SoapEwsRestProvider connection with EBO - Communities (se.com)

Issue Platform connection using TLS fails. Standard HTTP connection of port 3011 successful. Product Line TAC IA Series. Environment I/A Series Enterprise Server Cause TLS platform connection fails immediately and throws an exception in Workbench. Note that the Niagara Daemon is running and a non-TLS HTTP connection is successful. No station is currently running on the PC. All stations are stopped.   Example exception- SEVERE [08:45:58 02-Sep-20 CDT][wb.shell] Error connecting to platform daemon at localhost: GET /platformInfo javax.baja.naming.UnresolvedException: platformssl: Resolution A possible cause is a zero-byte file size bog file in the Daemon Home 'stations' folder. Check all of the station folders in Daemon Home, searching for any bog file that is zero bytes in size. Look for 'Config.bog.lock' files as one could be orphaned when a station running in the Niagara daemon were to stop unexpectedly, such as the system reboots suddenly or the PC is powered down. Remove all files that are zero bytes in size. Remove any 'Config.bog.lock' files. Test the TLS connection for a successful connection.

Issue SPU 1201 Universal Pressure Switch – Specification No. 131-1-201 SPU 1202 Universal Pressure Switch – Specification No. 131-1-202 Product Line Field Devices Environment Site requesting a Universal Pressure Switch Cause SPU1201 and SPU1202 obsolescence Original PDF specification sheet is available here: DS21602-0203.pdf. Resolution The SPU1201 and SPU1202 have been made obsolete per the supplier. The closest replacement options that we have are listed below: SPU1201 is a 0.2 – 4.0 Bar device. The replacement options are SPP920 Series SPU1202 is a 12 – 250 mBar device. The replacement options are SPP920 Series Refer to Product Announcement PA-00166 for the SPP920 series Differential Pressure Switches for neutral and slightly aggressive liquids and gases.

Issue How to add Web Service and create SOAP Web Service with Graphic Product Line EcoStruxure Building Operation Environment StruxureWare Building Operation site with release 1.2 or later Cause What are Web Services and how to add to my existing StruxureWare Building Operation site. How to add SOAP Web Service files and how to add to a project or site How to create values from SOAP Web Service Files How to add values to graphic that uses the values from SOAP Web Service Resolution Wikipedia: A Web Service is a method of communication between two electronic devices over the web (internet). W3C: A "Web Service" as "a software system designed to support interoperable machine-to-machine interaction over a network." Web Services: are hardware, programming language, and operating system independent Applications written in different programming languages and running on different platforms can seamlessly exchange data over intranet or the internet using Web Services Web Service interfaces are supported in both the AS and ES(does not support connection over a ProxyServer) Like BACnet, Lon, and Modbus, you can create a Web Service interface. EWS Interface - EcoStruxure Web Services Script Web Service - Generic Consume via Script (Web Service addition Script Web Service) Simple XML Web Service - Rest Generic Consume via Binding Tool (Web Service addition Simple XML Web Service) SOAP Web Service - SOAP Generic Consume via Binding Tool This article explains adding Sunrise and Sunset for a particular location data using SOAP Web Service: Select New > Interface > Web Service > SOAP Web Service Next Paste the URL which has the SOAP Web Service feature ((to find sunset/sunrise for your area, Google WSDL data) and location coordinates Get Operations button pulls in the data. Select Next  which shows the values and times and then select Create Create values by highlighting SOAP Web Service then File > New > Value Choose Next and highlight the specific for the values then select Create Here are the SOAP Web Service sunrise/sunset values If desired, Bind those values to a graphic Lastly for SOAP Web Service a graphic is created and the values which come from the SOAP Web Service are place on the page

Issue Resource Advisor platform, which serves as a repository for water, gas, and electric invoices, enabling customers to focus on evaluating metered data. Assisting organizations that are committed to sustainability. Setup information. Product Line EcoStruxure Building Operation, EcoStruxure Resource Advisor Environment Building Operation Automation Server Premium Building Operation Enterprise Central Building Operation Enterprise Server Cause Information on setting up Resource Advisor is not available for download Resolution Click this link for an overview of Resource Advisor. Attached is a more detailed document including EBO Setup Guide and links for additional Resource Advisor information.

Issue What are the fields in the FIPS-201 PIV FASC-N? Product Line Andover Continuum Environment CyberStation NC2 (9680) ACX2 (ACX5720, ACX5740) Cause Documentation Resolution The Federal Agency Smart Credential Number (FASC-N) consists of 40 total characters encoded as Packed Binary Coded Decimal (BCD) format with odd parity creating a 200 bit (25 byte) record.

Issue Replacement for Satchwell DWT0001 or DWT1701 by the STP660 Immersion Temperature Sensor due to obsolescence. Product Line Field Devices Environment DWT1701 DWT0001 Cause Obsolescence of Satchwell DWT0001 and DWT1701 Immersion Temperature Sensor. Resolution The STP660 Immersion Temperature Sensor is the replacement for the DWT0001 and older DWT1701 The STP660 provides the same functionality as the Satchwell DWT0001 and DWT1701, differing only in its appearance, dimensions and terminal identification. A pocket or well is also required and is sold separately. 9121066000 - Brass 9121060000 - Stainless Steel N.B. In the case of a DWT0001 and only the sensor part is required, then the STP660 will fit into the existing pocket (and adaptor). or In the case of a DWT1701 and the sensor part is only required, then a pocket adaptor 9121058000 is needed.

Issue BACnet devices not found but are visible in other third party BACnet applications An update may cause devices to go offline Product Line EcoStruxure Building Operation Environment BACnet IP Network Building Operation EnterpriseServer Building Operation Automation Server (AS, AS-P, AS-B) Cause According to BACnet routing rules, each BACnet Device should have a unique BACnet Instance ID and each BACnet Network should have a unique BACnet Network ID  When a BACnet interface is created on an EBO Server, a BACnet IP network is created with default Network ID of 1. This is a local Network address and in not published on the network, it is therefore not a problem if this is duplicated with other EBO Servers. On many site this will remain at 1 for multiple EBO servers with no problems. If a third party BACnet device uses a published Network ID that is identical to the EBO local Network ID, then it will be ignored. There will be a "Duplicate of local network"  System Alarm and line similar to below in the trace log "nsp.pin.BACnet Device <device name>claims to be router to Network #1234 but that is a local network (BACnetMain)" Resolution If the EBO Server is not finding a BACnet device on a different network type (via BACnet routing like MSTP or virtual IP) then it could be the Network ID is identical to the local EBO Server Network ID. If this is the case, then simply change the EBO local Network ID and retest. BACnet Devices on the same IP network, including those on different IP subnets and linked via BBMD or Foreign Devices are not BACnet routed and therefore will not have this issue (no BACnet Network ID route is involved) Some earlier versions of EBO did not ignore these duplicate Network IDs, thus when up grading some devices could go offline. The workaround would be the same. The correction to the BACnet operation occurred in v1.9.3 and v2.0.2

Issue Controllers underneath a LonWorks Interface are going offline, or values are taking long periods of time to update. Product Line EcoStruxure Building Operation Environment Building Operation Workstation Cause There could be a number of causes for Lon communication problems including running the communication wire near high voltage, the Lon is shorted out, or loose terminations. Resolution In EcoStruxure Building Operation (EBO) Workstation you can use the Diagnostics tab under each controller to help troubleshoot the communication issue. From here you can monitor the device state, packet errors, transaction timeouts, receive transaction full errors, lost messages, missed messages, last reset case, and the last error logged. To access the Diagnostics tab, select the controller in the System Tree, and click the Variables tab. Then click the Diagnostics tab on the right side of the screen. Here you will find the different device statuses and statistics. The Packet errors can be used to help identify controllers that are having severe problems and may need the communication wire to be physically checked. In order to test the Packet errors, first you will want to clear the current packet error count. You can do this by right clicking on the controller and selecting Advanced -> Clear Status. This will set the packet error count back to zero and now you can click refresh to monitor how fast the errors are building up. If this number is climbing quickly then there may be a physical layer communication problem. If a lot of packet errors is found, the next step in the investigation will be a deeper analysis of the Lon network, using, for example, a Lon Protocol Analyzer (LPA). Refer to the Knowledge Base Article Troubleshooting LON Network Communication.

Issue Supplemental Documentation on the Menta OPT block for optimized start and stop. Product Line TAC Vista, EcoStruxure Building Operation Environment Menta Function Block Cause The document below is intended to clarify the inputs and configuration parameters of the Menta OPT block and when/how to use them. Resolution Click here to download the example Menta macro A Brief Overview of Optimized Control Optimal Start Optimal Start measures how long it takes a room temperature to reach setpoint each morning when the air-handling unit is enabled. These measurements are then used to predict how long it will take the next time. As time goes on, the predictive algorithm is refined until it becomes quite accurate. An optimally started unit saves energy by only starting as early as is needed, not just an arbitrary hour or two before occupancy. Optimal Stop Optimal Stop is less common. An optimally stopped unit stops running prior to the end of the day. It measures how long it takes before the measured room temperature drifts outside of an acceptable range around the setpoint. This saves energy on cooling a building until 5:00pm (for example) when the occupants are just about to walk out the door. The example in this document will not implement Optimal Stop. Inputs to the OPT Block RoT Room Temperature. If there is just one room temperature sensor being served by the optimally started unit, then this is where it would be used. However, if the unit has several room temperatures or serves many VAV terminal units, consider the following options: Average all temperatures Pick one interior zone Highest room temperature for cooling/lowest room temperature for heating Use return air temperature In all of these scenarios, some consideration should be made for if the input sensors fail: Averaging all temperatures is the most robust method. However, if SNVT inputs are used, it may be necessary to discard invalid values (621.8°F) from the averaging calculation. If one interior zone is used and the temperature sensor fails, the unit will eventually revert to starting as early as is allowed every day. The default value for this is 12 hours early; the example in this document uses 2 hours. If the primary sensor fails, use a secondary, or disable optimal start on a failed condition. Instead of the highest and lowest room temperatures, it may be wise to use the second highest and the second lowest room temperature. This allows for one failed sensor in each direction before the Optimal Start calculation is affected. Using return air theoretically is a lot like using the average of all room temperatures. Adjusting the setpoint to get the desired result might be required. A failed sensor input should disable the Optimal Start calculation. SP Setpoint. Using two OPT blocks – one for Optimal Start cooling, one for Optimal Start heating – allows each to be fine tuned. If there is a morning warm-up sequence, then the heating Optimal Start may be much quicker than the cooling. Using one block requires the internal calculation to adjust as the needs change from cooling to heating, and can be less agile when switching from cooling to heating requirements. OuT Outdoor Temperature. Resets to the curve occur based on the outside air temperature. If it is very cold or very hot outside, the unit will start sooner. This curve is reset automatically as time goes on to better predict the effect outside air temperature has on the controlled space (if AutoAdjust > 0). OpI Operation Indication. In the example of an air-handling unit, OpI would be the fan status. If the configuration parameter OperIndicF is set to 1, then this will be used for internal calculations. Otherwise, it will just use the command as status. This prevents a mechanically failed unit from affecting the calculation. A good rule to follow is if fan status is available, use it. TmL Time left. A time schedule (TSCH) input goes here. This tells the calculation how much time is left before the unit is scheduled to turn on (or off). The OPT block then starts the unit early based on this number. It also ensures that the unit always runs during the scheduled occupied time. Mode Mode is for heating/cooling or enabled/disabled. It is advantageous to always program in a method for disabling Optimal Start through a public variable (PVB). Many times the seeming complexity of Optimal Start is found to be undesirable by building operators and they will ask to have it disabled. Mode could be programmatically set for heating/cooling based on outside air temperature (or some other factor), but in the example in this document, two separate OPT blocks are used and are hard-coded for their respective modes. Configuration Parameters of the OPT Block AutoAdjust AutoAdjust refers to whether or not the OPT block gets smarter by adjusting the curves set initially on the first download. If AutoAdjust is set to 0, then the OPT block will still adjust the start time every day based on the room temperature and outside air temperature, but it will not adjust those early start times based on past experience. Set the AutoAdjust to 1, and the curves will adjust a little every day. Set AutoAdjust to 2 and the OPT block will also adjust the holiday compensation (the unit will start a little earlier after a 3-day weekend, but may need to learn exactly how much as time goes by). To maximize the potential of the OPT block, it is suggested to set this value to 2. RoomTempF Room Temperature Flag. Is a room temperature sensor present? Without a room temperature sensor, it is not possible for the OPT block to adjust its curves. It is guessing at that point based on pre-determined curves. It is not recommended to use OPT without a room temperature sensor. OperIndicF Operation Indication Flag. If OperIndicF is set to 1, then the OpI input will be used for internal calculations. Otherwise, the OpI input is ignored and the command is used as status. This prevents a mechanically failed unit from affecting the calculation. A good rule to follow is if fan status is available, use it. StartTimeLo Start Time at Low Outside Air Temperatures. When it is cold outside, how much earlier should the unit start? This will change between a cooling and a heating optimal start block. If AutoAdjust is set to 1 or 2 then this is just a default value. It will adjust as needed each day, but a good default value is important. StartTimeHi Start Time at High Outside Air Temperatures. When it is hot outside, how much earlier should the unit start? This will change between a cooling and a heating optimal start block. If AutoAdjust is set to 1 or 2 then this is just a default value. It will adjust it as needed each day, but a good default value is important. HolidayComp Holiday Compensation. This is the default compensation for a holiday (longer than 48 hours of continuous unoccupied time). The value is a percentage. If there is a 3-day weekend, how much earlier should the unit start on the following Tuesday? If AutoAdjust is set to 2 then this is just a default value. It will adjust it as needed each day, but a good default value is important. MaxStartTi Maximum Start Time. This is the maximum amount of hours the unit is permitted to start prior to the occupied time. The default value is 12 hours. The first time the unit is downloaded, it will start this early and measure how long it takes to achieve setpoint. 12 hours is very early. The example in this document uses 2 hours. Even if something goes wrong with the internal calculation (failed sensor input, for example) the earliest it could start would be 2 hours early. ETol Error Tolerance. How close to the desired setpoint does the temperature sensor need to be to be considered at setpoint? An error tolerance of 0.5°F is default and is usually acceptable. StopLoTemp, StopTimeLo, StopHiTemp, StopTimeHi, StopTimeErr All of these parameters refer to the Optimal Stop portion of the OPT block. Setting them to 0 disables the Optimal Stop functionality. Output of a OPT Block There are three possible output values of an OPT block: 0 = The unit is off, unoccupied 1 = The unit is on, occupied 2 = The unit is on, optimally started Putting It Into Practice The example below is a Menta Hierarchy Function Block (HFB) and shows HFB inputs to the blocks. The top OPT block is set to heat mode and looks to a heating setpoint. The bottom OPT block is set to cool mode and looks to a cooling setpoint.   OPT_START_HEAT OPT_START_COOL AutoAdjust 2 2 RoomTempF 1 1 OperIndicF 1 1 StartTimeLo 60 0 StartTimeHi 0 60 HolidayComp 0 0 MaxStartTi 2 2 Etol 0.5 0.5 StopLoTemp 0 0 StopTimeLo 0 0 StopHiTemp 0 0 StopTimeHi 0 0 StopTimeErr 0 0 Using the hints and tips suggested will allow not only for proper programming techniques, but also for creation of macro libraries that can be reused and shared to improve effectiveness across business units.

Issue The Niagara G3 platform daemon will not run using an administrator account in Windows. Product Line TAC IA Series Environment Niagara G3 Cause Possible causes: The niagara service is not started IIS is running on the computer Port 3011 is blocked Authentication Resolution There are a number of possible causes: The niagara service is not started. Run Platform Daemon (Start > Programs > Vykon AX Supervisor > Install Platform Daemon) IIS is running on the computer.  Disable IIS in Control Panel > Administrative Tools > Services Port 3011 is blocked. Ensure there are no firewall, antivirus, or remote access software blocking port 3011 There are two types of platform authentication: Basic platform authentication (the default for a Windows-based host) provides integration with existing Windows installations, and provides two levels of platform access, which are determined by a user’s group membership(s). The levels of platform access are: User - Platform access at this level allows full use of most Workbench platform views. This includes the ability to install or delete licenses and stations (including the one running), also to install, reinstall, or upgrade the platform dist file and/or modules, and to start, re-start, or stop a station. Admin - Full access. This includes all user-level platform operations, plus the ability to configure host TCP/IP settings and dial-up configuration, change platform authentication, change platform daemon HTTP port, change host date/time settings, use the File Transfer Client, and reboot the host. Digest platform authentication provides only full level platform login access, using a single platform user account. With Digest platform authentication, there is no linkage between Windows OS user accounts and the platform administrator. If Basic authentication does not work, then Digest authentication must be used. To enable digest authentication, do the following: Using Notepad or WordPad, open the daemon.properties file located in C:\niagara\[release]\daemon folder Add the following lines to the end of the file: installFlag=doc authtype=digest/file user=[username] (where you select the username) password=[password] (where you select the password) stationIsAdmin=true Save, then close the file Restart the platform daemon (Start > Programs > Vykon AX Supervisor > Install Platform Daemon) Launch Workbench AX, then open the platform using the username and password you provided in step 2. Consult the Niagara AX Platform Guide for more information.