Building Automation Knowledge Base

Issue Includes PSI Error Messages and Device Error Messages Environment PSI Microzone II Network 8000 Cause Quick reference Resolution The error codes are listed in the PSI MicroZone II Operator's Manual.  The full document is available here:  F-23058. Just the error codes are available here:  Pages 59-61.

Issue What is enabled on a Continuum Security Key? Product Line Andover Continuum Environment Continuum Security Key Cause There's a need to know what version of Continuum is enabled on the key. Resolution Note: The Excel method for viewing enabled key features mentioned below no longer works with Windows10 or greater and because of CyberSecurity issues ActiveX controls have been deprecated by Microsoft in favor of more secure web technologies.  This feature will not be updated for Cyberstation.   The supported version of the keys and what options are available on the key can be verified by doing the following using Microsoft Excel on a Workstation with Continuum and the key installed: Open MS Excel Select Insert> Object Select SecurityKeyreader Control and then Ok You will see an object inserted into the spreadsheet with a list of products on the left and options on the right. Example: Serial Number 1016019 Options Number of Points -1 Adv.WebServerEnable Number of Personnel -1 EpiSuiteEnabled Platform Lan(Multi) OPTxtLoggingEnabled Type Prog.Intg. PESourceCntlEnabled Max Version 1.79 Global 1 0 Global 2 0 Global 3 0 Global 4 0 Windows 7 64 bit will not support the MMC.exe option (mentioned below)   Use the command       mmc.exe /32     This will allow the ActiveX snap-in to be added and will work on a 64 bit PC   ActiveX controls in Excel 32 bit are not exposed by default. Use the following Excel spreadsheet (zipped) to read the security key instead. (Excel must be installed and must be on a 32 bit PC(64 bit shows this as blank) Security Key Reader Excel File You may be prompted to enable the ActiveX control Excel 2003 - The application is about to initialize ActiveX controls that might be unsafe. If you trust this document, select Yes and the control will be initialized. Excel 2007/2010 - Notice the Security Warning below the Toolbar                                   Click options                                   Select Enable this content Upgrading a key requires a call to repair (978-975-9464) for a cookie to update the key. In order to install the cookie, you must use the program, CyberKeyWriter2.exe to enter the new key which is on every Cyber CD in the Continuum\bin folder.    Note: Also see Accessing Continuum Security Key information using MMC instead of Excel that describes another method to see this information using MMC. This feature does not work with newer versions of Windows 10

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 Doing a Niagara G3 integration with a Modbus controller from ASCO Power Technologies.  What type of Niagara object is required to read register 40158?  Click here to view Modbus Register Map Environment Niagara G3 ENC-520 ASCO Power Technologies controller Cause Cannot identify what type of object is needed. Resolution The number appears to be an enumerated value (1-22) and is a read-only integer. Use a Numeric Point.

Issue Daylight Savings time changed in the U.S. and methods are needed to synchronize time Environment Continuum Windows XP Windows Vista Windows 7 Windows Server 2003 Windows Server 2008 Cause Methods for synchronizing controller time Resolution The following document was email out when Daylight Savings changed in the U.S. and contains 2 methods for synchronizing time Click Here to download the pdf document.

Issue String comparison in TGML script is not working. Product Line TAC Vista Environment TGML graphics editor 1.1.X Cause Javascript has a string class and a string literal. String literals are denoted by double or single quotation marks ("" or '') and it is important to compare "like" with "like". String literal: string1 = "Apples" String class: string1 = target.getAttribute("Name"); Resolution A deeper comparison is required in the example below. Instead of: name = target.getAttribute("Name"); tmp = target.getParentNode().getElementsByTagName("Ellipse").item(i).getAttribute("Name"); if (tmp==name) Use: if (tmp.equals(name)) An example is shown in the TGML graphic attached. Download graphic Also check out the JavaScript Essentials - Episode 3 - Value Types Quick-Help video on the Exchange.

Issue Configuring a Smart Sensor in SBO. Product Line EcoStruxure Building Operation Environment StruxureWare Building Operations b3xxx Controllers Smart Sensor (LCD or LED) Cause Unsure how to program for a Smart Sensor in SBO. Resolution Some considerations to be aware of first; Object naming differences Programming of the Smart Sensor is very similar to the old Plain English programming used in Continuum. One of the main differences is that each input must be specifically defined at the start of the program. Depending on the version of SBO, there may be some other considerations with setting up/reading the LcdDisplay array by renaming of the BACnet AnalogValue's to remove the "_AV" from the BACnet name. This naming issue affects SBO v1.4. Specific variables for Smart Sensor to be used in Plain English programming. Here is an old Smart Sensor Installation manual that will help explain which objects need to be created and how they work in the controller to enable the LCD display. Create the LCDDisplay and SpaceTempSP as numerics and any other objects that are not already created as InfinitySystemVariables. See "Configuration and Programming" section in the manual starting on page 14. Also note that the sensor will not light up until values are written to it. Sample Plain English code. LCDDisplay (or LEDDisplay) is not automatically created. Create this numeric and assign it as an array with 8-elements.  If it is an LCD Smart Sensor, then create a numeric and name it "LCDDisplay" and set its logsize to 7 (this configures it as an array with 8 elements from 0 to 7). If it is an LED Smart Sensor, then create a numeric called "LEDDisplay" instead. After creating this numeric you should be able to create the PE Program successfully. The simple program below will show the current spacetemp (LcdDisplay[1]) in two decimal place format (LcdDisplay[2]) when the Display key (LcdDisplay[0]) is pressed. The degrees symbol (LcdDisplay[7]) is also shown. Consult the Smart Sensor Installation and User Guide starting on page 16 for more details on how these values are configured. Numeric Input SpaceTemp Numeric Output LcdDisplay Initialise: LcdDisplay[2] = 0 If LcdDisplay[0] = 4 then Goto ShowTemperature ShowTemperature: LcdDisplay[1] = SpaceTemp LcdDisplay[2] = 12 LcdDisplay[7] = 1024 If TS > 30 then Goto Initialise In SBO, do the following under the Application section of the b3 controller: Create a BACnet Analog Value object in the b3 called "LCDDisplay". Go to the Advanced tab and under the Log Settings section change Log Records to be 7. Save the changes. Create the program and add the above PE Script. Add the binds to the LCDDisplay object created in step 1, RoomTemp input, and any other objects used in the program.

Issue  Evaluating Signal Levels on RS-485 Field Bus with an Oscilloscope. Environment Infinet Field Bus MSTP Field Bus Cause Documentation Resolution See  Evaluating Signal Levels on RS-485 Field Bus with an Oscilloscope.pdf

Issue How to discover MNL Lon devices or other Lon devices in an SmartStruxure Automation Server. Product Line EcoStruxure Building Operation Environment Building Operation Workstation Building Operation Automation Server Cause Use the below instructions when you need to find all Lon devices on a Lon network. Resolution To discover a LonWorks device In WorkStation, in the System Tree pane, select the server that is connected to the device you want to discover. Click the Device Discovery view. In the Select device type box, select LonWorks. Select the Devices folder. Right click on the Devices folder and take "Scan network for devices" In the Device Discovery view, ensure that the LonWorks device is displayed in the Devices folder. This may take up to 5 seconds. Drag the discovered device to the System Tree pane: Drag to an existing device to associate it with the discovered physical device. Drag to the LonWorks network to create the device.   NOTE: You cannot drag a standard MNL LonWorks device to the System Tree pane if the discovered device is in an unconfigured state For more information, refer to the Creating and Configuring a LonWorks Network with MNL LonWorks Devices [102423].pdf document 

Issue Tridium N4.11 Upgrade Considerations  Product Line TAC IA Series Environment I/A Series N4.11 Enterprise Server I/A Series N4.11 Jace 8000 Cause Detailed information about N4.11 upgrade prerequisites and best practices  Resolution The following details a set of upgrade considerations and known issues and their workarounds regarding Niagara 4.11. Please review prior to upgrading to Niagara 4.11. Niagara 4.11 and Default NRE Memory Changes: A change to the JACE-8000 file system has been introduced with the release of Niagara 4.11. The RAM disk was used to store alarm and history data. During station save, this data was copied from the RAM disk and zipped up into a single file that was stored on flash. In Niagara 4.11, the RAM disk has been removed entirely. This data is now written directly to the flash memory. This change has enabled ~384MB of RAM to be freed up to improve performance. Some of the space has been reallocated to code cache, metaspace, and heap space in the 4.11 NRE default settings. Any additional memory space is now available as general free memory. These changes should be transparent to most users and will provide moderate performance improvements on the JACE-8000. Prior to upgrading your JACE-8000, please review NRE default configuration changes and RAM disk removal In 4.11. Niagara 4.11 and Third-Party Modules Keeping your Niagara installations safe and secure is our highest priority. In Niagara 4.11, ALL third-party modules must be signed with either a trusted valid certificate or a self-signed certificate to successfully run on a station. This new policy greatly increases the security posture of Niagara installations by making administrators aware of any modules that may have been tampered with, compromised, or derived from untrustworthy sources. Niagara's new signature enforcement feature is being rolled out over multiple Niagara releases. The first iteration was built into release 4.8 to give developers adequate time to make the transition to always signing any third-party modules. Niagara 4.8 produced console and Security Dashboard warnings about unsigned modules but allowed them to run on a station. As of Niagara 4.11, unsigned modules will not execute. For more information, please review the Niagara documentation on Third-Party Module Signing Niagara 4.11 Updated Operating Systems, Browsers, and Databases For the latest information on supported operating systems, please refer to Supported OS and other software in the Niagara 4 Framework Installation Guide. Tridium remains focused on keeping pace with advancing IT infrastructure to enable more efficient, long-term support of each release version. This policy enhances the security posture of a Niagara installation by ensuring that only the most robust, secure operating systems and enterprise applications are compatible with the framework. The list below provides information on what we will be supporting with Niagara 4.11.   OS, Browser, Database Version Red Hat Enterprise Linux 8.1 (64 bit), 7.7 Ubuntu Linux 20.04 LTS – Desktop & Server Windows Server 2019 (64 bit), Server 2016 (64 bit), Windows 10 (64 bit) VMWare ESXi 6.7 Oracle Database 19.3, 18.3, ... 12.2/12.1 MySQL Database 8 MS SQL Database 2019, 2017, 2016 Browsers Chrome, FireFox, Microsoft Edge Mobile Browsers Safari (iOS 12, 13), Chrome (Android 8, 9, 10) As with all software products, we must also deprecate support for some operating systems and enterprise applications.  Nevertheless, you can be confident that the above list will handle your needs moving forward. Using Web Launcher with Niagara 4.11 Web Launcher 21.4.1 was recently revamped for Niagara 4.11 to include essential software dependencies updates along with critical defect fixes. This version of Web Launcher has Java version 8 update 311 and certificate management has been updated to work with Niagara 4.11 along with any legacy or prospective release. Prior to using Web Launcher with Niagara 4.11, customers should update Web Launcher accordingly (see steps below). How to update Web Launcher? Web Launcher has a feature to check for updates over the internet and prompts the user when a new version is available in the cloud. However, the existing version of Web Launcher has a bug that prevents a smooth update. Users will be required to perform a fresh install by downloading the latest version from the cloud via the station web Login page. Click on the Niagara Web Launcher Installer link on the station's Web Launcher Web Page, which can be reached via the link on the Login page itself. Once the download is successful, click on the msi file and follow the installation wizard. You do not have to uninstall the older version. The new installation will automatically update to the latest version. Niagara 4.11 Release Notes: The release notes for Niagara 4.11 are located here.

Issue In the Workstation, old alarms are showing in the alarm pane. Recheck does not remove, and the only option left is to "Hide". The same goes for disabled alarms. Is there a way to erase or scrub these 8-month-old alarms? When checking disabled alarms, there are a lot of alarms that have been disabled, but no one has disabled any alarms. When right-clicking on the alarms to get the context menu, most of the alternatives are greyed out. Product Line EcoStruxure Building Operation Environment StruxureWare Building Operation version 1.2 or higher Cause First, check the disabled cause to see what disabled the alarms. If it is "user," a person has disabled them. If it is "system," the system has automatically disabled them because the alarm object has lost its monitored value. Resolution Alarms in the alarm view "Recheck" command does not help then try the "Alarms Integrity Check" commend, please see LL Removing invalid alarms  Check the source path on the alarms, do they point to actual alarm objects? If the alarm objects that triggered the alarm in the first place still exist, you should be able to disable them then just enable them again. If you cannot, use the disable button in the alarm viewer then you can use the Disable alarm property in the editor (assuming version 1.2 or higher). If you can’t disable them then try to trigger them back and forth once. If the alarm objects don’t exist anymore, create alarms that would fit the source path, then just trigger those. After that, it should be safe to delete the alarm objects again. Basically, the alarms you create will take ownership of the old alarms in the viewer. Also, add the column Type in the alarm viewer and see what type they are. It would be helpful to know what the Source path and System alarm id (if there is one) are. Remove old Alarms in Alarm Pane Disabled alarms If the monitored values are not used anymore delete the alarm object that monitors the value If this is not enough make sure the path exists in the system, it can be needed to recreate the alarm in the correct path meaning the folder structure needs to be recreated. There is also the choice of right-clicking on the Alarm which gives the following menu: From this menu, one can Disable the alarm or alternatively, Hide the alarm. To view Hidden or Disabled alarms once they are not shown in the Alarms window, select one of the two Icons from the Alarms window icons as shown below:

Issue TAC Vista Error Codes in Plain Text Product Line TAC Vista Environment Vista Server Vista Workstation Cause Vista will sometimes give an error code. This list decodes the TAC Vista Family Error Codes. Resolution For a list of TAC Vista Error Codes in plain text click here.

Issue When trying to embed a website in an N4 Px view, the site renders in Workbench but not in most browsers displaying this error in the browser's developer console; Product Line TAC IA Series Environment I/A Series N4 Workbench Web Browsers, Chrome, Firefox, Edge, Internet Explorer Cause Most major browsers no longer support NPAPI/Java plugins.  Oracle has stated they would remove it in JDK 9  and from Java entirely.  The N4 WebBrowser object under the workbench pallet requires Java to work correctly.  That is why it only works in the Workbench environment, Internet Explorer, and older Oracle Java platforms. Resolution When using the WebBrowser object in Niagara N4. Viewing in the Browser Preview Mode or in an actual browser that doesn't support the Java plugin, the embedded site will not render. The only solution is to use Internet Explorer or the Web Launcher application detailed in the attached document to view the Px. For more information, refer to the Niagara Web Launcher - Niagara Java-based Web Clients Guide PDF

Issue Some Windows OS do not come with Hyperterminal installed. Product Line Andover Continuum, EcoStruxure Building Operation, Field Devices, Other, Satchwell MicroNet, Satchwell Sigma, TAC IA Series, TAC INET, TAC Vista Environment Windows Vista Windows 7 Cause Hyperterminal was not included in the Operating System software package. Resolution Installing Original XP HyperTerminal Download this .zip file which contains the necessary executable and dynamic link library for running hyperterminal Unzip to local hard drive. Double click the hypertrm.exe to launch hyperterminal See Connecting a serial cable to a Xenta 5/7/9xx controller for proper cable connection and hyperterminal settings if needed. Alternatively, extract the two files from any XP installation and copy them to the new Windows OS. hypertrm.exe default installation is in C:\Program Files\Windows NT hypertrm.dll default installation is in C:\Windows\System32. Alternatively, from a Windows XP CD, both files reside in the i386 directory.

Issue What is the replacement actuator for the EM42? Environment EM42 Actuator Cause The EM42 is obsolete. Resolution The EM42 actuator is generally associated with the V280/290, and the V380/390 series valves. The replacement actuator for the EM42 is the Schneider Electric Forta M310 Actuator. Please note that an adaptor kit (880-0252-000) is required for DN15 valves. For a copy of the EM42 data sheet please click HERE. For a copy of the M310 data sheet please click HERE.

Issue What is the difference between a Numeric Input, Numeric Output and Numeric Public within a script program. Is using a Numeric Public a less efficient choice (as opposed to using a Numeric Input or Numeric Output) that will generate negative overhead in the AS? Product Line EcoStruxure Building Operation Environment Building Operation Automation Server (AS, AS-P or AS-B) Building Operation Workstation b3 and Infinet controllers Cause Want to determine best practices when choosing numeric types during script programming. Resolution Numeric Input is a read only numeric (from the point of view of the script program) that accepts a binding. Numeric Output is a write only numeric (from the point of view of the script program) that accepts a binding. Numeric Public is both read and write (from the point of view of the script program). Numeric Public also accepts a binding. (A Numeric Public can be bound to both a Graphic and a Value Object to allow overriding of values from a Graphic. See SBO Script Public.zip for an example) When choosing the numeric type in a script program there is no overhead cost difference between using one of these numeric types vs the others. Also check out the Script Programming - Writing the Script Program Quick-Help video on the Exchange. NOTE b3 and Infinet Controller scripts do not support "Numeric Public", but "Numeric Output", in these controller scripts, can be used in a similar way to "Numeric Public" The Bound value is read by the script as well as being written to.

Issue Replacements for Satchwell sensors Product Line Satchwell MicroNet, Satchwell Sigma, Field Devices Environment DR DR3253 DRT DRT3451 DRT3453 DRT4453 DRT3651 DRT3652 DRT3801 DRT3851 DU DU4301 DUS DUS4302 DUSF DUSF4351 DUSF4352 DRTE DRTE2201 DRTE2801 DRTE2851 DRH DRH7702 DRH7703 DRTH DRTH7712 DRTH7713 DOT DOT0001 DOT0002 DOS DOS0002 DDT DDT1701 Cause Replacements for Satchwell Room sensors Resolution DOT0001/0002 Outside temperature sensor For CSC, KMC, MMC, IAC, MNN New part number: STO600/5126060000 DOS0002 Outside solar sensor For CSC, KMC, MMC, IAC, MNN New part number:  SSO600/5126050000 DR3253 Room sensor non-adjustable For SVT New part number: STR614/004604900 DRT3451 Room sensor exposed adjustment For CZU, CSC New part number: STR612/004604700 DRT3452 Room sensor concealed adjustment For CZU, CSC New part number: STR611/004604600 DRT3453 Room sensor non-adjustable CZU, CSC, CXR, CZT, KMC, MMC, IAC, MNN New part number: STR600/004604100 DRT4451 Room sensor non-adjustable As DRT 3453 in S-Link housing Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DRT3651 Room temperature sensor exposed adjustment For CXR, CZT, KMC, MMC, IAC, MNN New part number: STR602/004604300 DRT3652 Room temperature sensor exposed + LED For MMC, IAC, MNN Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DRT3801 Room temperature sensor fan switch On/off for CZU, MNN, IAC Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DRT3851 Room temperature sensor fan speed switches As above plus medium and high Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DU4301 Room sensor temperature For MNN & URC New part number: STR601/004604200 DUS4302 Room sensor temperature setpoint advanced basic sensor New part number: STR613/004604800 DUSF4351 Room sensor temperature setpoint adjustable fan auto/on/off fan override New part number: STR609/004604400 DUSF4352 Room sensor temperature setpoint advanced fan Auto/1/2/3 fan override New part number: STR610/004604500 DRTE2201 Active room detector Basic sensor Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DRTE2801 Active room detector On/off Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DRTE2851 Active room detector Off/low/medium/high Obsolete with no Schneider Electric replacement Suggestions: Try Titan Products or Sontay DRH7702 2% 0-10V DC humidity only For KMC, MMC, IAC, MNN New part number: SHR100/006902340 DRH7703 3% 0-10V DC humidity only For KMC, MMC, IAC, MNN New part number: SHR100/006902340 DRTH7712 2% 0-10V DC humidity with Satchwell NTC TEMP OUTPUT For KMC, MMC, IAC, MNN New part number: SHR100-T6/006902420 DRTH7713 3% 0-10V DC humidity with Satchwell NTC temperature output For KMC, MMC, IAC, MNN New part number: SHR100-T6/006902420 DDT DDT1701, DDT1702 and DDT0001 Duct sensor non-adjustable New part number: STD660 5126030000 Contact Details: Titan Controls: http://www.titancontrols.net/ Sontay Controls https://www.sontay.com

Issue When logging in to SmartStruxure WorkStation you get a security certificate risk warning Security Certificate Risk There were errors validating the security certificate in use. This may pose a security risk to the system. The certificate presented by this server was issued for a different server's address. How do you wish to proceed? Trust certificate or Cancel You can also get a warning when logging in through WebStation if you use the https address Warning in Google Chrome - FireFox - Internet Explorer Product Line EcoStruxure Building Operation Environment SmartStruxure version 1.6 and newer WorkStation WebStation Cause Starting in version 1.6, a new security feature has been introduced validating the ES and AS server identity based on security certificates. In order to avoid seeing this warning each time you log in, you need to apply a certificate to each server (ES, AS, ASP or ASB) - either a self-signed or an existing. Resolution This article will describe how to import or generate a certificate, and how to install the certificate through WorkStation or a browser. If you generate the certificate for an Automation Server, make sure that the time and time zone is correctly set in the Automation Server before generating the certificate. Regarding external CA certificates In step 8 below, it's shown how to generate a self-signed certificate. It might be that it's required to use an external CA certificate issued by a trusted issuer e.g. Verisign. All X509 certificates are supported. The format of the certificate must be PEM (as opposed to DER, PKCS7 or PKCS12). More about certificate types here. SBO currently only supports certificates using the PEM format which is the most common. If the external CA certificate is delivered in a container format (such as .pfx) it must be extracted before it can be used in SmartStruxure. More about extracting certificates here. Importing or generating a certificate Log in to Workstation clicking "Trust certificate" Navigate to the control panel Click on "Security Settings" Click on "Certificates" If you see a message saying that a secure communication protocol is not in use, it means that one or more AS's are communicating with the ES using the TCP port (4444) rather than https. In order to manage certificates for all servers in one operation, you need to change the communication ports. Click on "Configure communication settings" to do that. - and change the protocol to HTTPS and the port to 443 Back in the certificates settings, select one or more servers (in this example just the ES) and click "Manage Certificate" Select a certificate type to add. Unless a certificate is bought from a third party provider, select "Generate certificate" which will make a self-signed certificate. Enter a name, tick "Use IP/DNS..." and select a date when the certificate will expire as a minimum, and fill out more info if needed. Click "OK".  NOTE: Do not exceed year 2060 in the "Valid to" field, doing so will result in a certificate expired error when trying to apply the certificate. Select the certificate just created and save   Installing a certificate through Workstation Close Workstation (just logging out is not enough) Open Workstation and log in using the IP address or DNS name - never "localhost" as that name will not match the certificate. Now you will be able to tick "Always trust this certificate" as the name (IP address or DNS name) in the certificate matches the server you are logging on to. Tick the box, and click "Trust Certificate". Click "Yes" to confirm the installation of the certificate Now you will not get the security warning when logging on Installing a certificate through a browser Access the server using Internet Explorer (important) entering the https address (e.g. https://localhost) Click on "Continue to this website" Click on the "Certificate error" field next to the address bar Click on "Install certificate" Select "Trusted Root Certification Authorities" Click next and ok Close the browser Now you can use both Internet Explorer, Google Chrome and FireFox to access the server from Webstation using https and not get the warning If the certificate fails to install and be trusted properly, it might be because you need to manually select which physical storage to add it to. Refer to the following discussion

Issue Locating the IC3-Modbus documentation Environment Sigma IC3 Modbus Documentation Cause Unable to locate documentation. Resolution To download the IC3-Modbus Gateway.txt file click HERE. To download the IC3 configuration guide click HERE. To download the IC3 data sheet click HERE.

Issue Using the EGL, EGRL, EGLL5 which are obsolete Environment Vista Cause temperature/resistance data of EGRL, EGRLL, EGRL5 temperature sensors, or customer needs data to calibrate the sensors. Resolution EGL is replaced by the STD100-250 EGRL - STR100 EGLL  (2 thermistors) was not really replaced, as the average temp calc nowadays is done in the controller. The room version was named EGRLL. All these are for the Vista series. For more information regarding sensors, please visit Exchange Extranet.    Click here for the temperature/resistance chart for the old EGL, EGRL, EGLL5 Click here for the original Product and Installation pdf.