Building Automation Knowledge Base

Issue DC2000 series Optimiser / Compensator Controller requires resetting to default values due to exposure to electrical corruption. Product Line Field Devices Environment DC2000 series Optimiser / Compensator Controller installed to control Variable Temperature Mixing Valve, Boiler/s, Pumps etc. Cause DC2000 series Optimiser / Compensator Controller has been exposed to electrical corruption. Resolution DC2000 series Optimiser / Compensator Controller may be reset to default values as follows :-  Isolate power to Controller. Open Door of Controller. Locate PCB on rear of Controller Door. Locate pair of Steel Pins (marked PL1) on PCB. Link out pair of Steel Pins for 10 seconds approx. Remove Link. Close Door of Controller. Reinstate power to Controller. Re-programme Controller. Re-programming procedure for the DC2000 series Optimiser / Compensator Controller may be viewed here. Should the above reset to default values procedure fail to enable the DC2000 series Optimiser / Compensator Controller to be re-programmed then replacement of the Controller may need to be considered. POSSIBLE REPLACEMENT The most common control application to which theDC2000 series Optimiser / Compensator Controller may be applied comprises the following combination of inputs and outputs.  Outside Air Temperature Sensor Inside Air Temperature Sensor Compensated Heating Temperature Sensor Variable Temperature Heating Circuit Valve Actuator Boiler/s (2 maximum) H W S On/Off output (independent) Should such inputs and outputs be confirmed then the DC1100 Optimiser / Compensator may be installed in place of the DC2000 series Optimiser / Compensator Controller. Details of the DC1100 Optimiser / Compensator Controller may be viewed here. Drayton A7xx series Sensors connected to the DC2000 Optimiser / Compensator Controller are compatible with the DC1100 Optimiser / Compensator Controller and may therefore be retained. N.B. It should be noted that where a DC2000 series Optimiser / Compensator Controller is included in an installation of a more complex nature then an alternative solution utilizing different products may need to be considered In such installations not only will the DC2000 series Optimiser / Compensator Controller need to be replaced but its associated Sensors will also need to be replaced. Resolutions to such installations may best be determined following a review of the control system installed by a member of the local Schneider Electric

Issue DC2000 series Optimiser / Compensator Controller requires replacement due to obsolescence. Product Line Field Devices Environment DC2000 series Optimiser / Compensator Controller installed to control Variable Temperature Mixing Valve, Boiler/s, Pumps etc. Cause Obsolescence of DC2000 series Optimiser / Compensator Controller. Resolution OVERVIEW DC2000 series Optimiser / Compensator Controllers are flexible with regard to the number and type of electrical inputs and outputs to which they may be connected, enabling the Controller to be applied to a wide range of control applications.  Overview details of the DC2000 Optimiser / Compensator Controller may be viewed here.    INSTALLATION AND COMMISSIONING In view of the numerous control applications to which the DC2000 series Optimiser / Compensator Controller may be applied, numerous wiring connection variations will also apply. Please therefore check the number of inputs and outputs connected to the DC2000 series Optimiser / Compensator Controller installed before proceeding, as this will assist in determining the suitability of the possible replacement Controller suggested below. Installation and Commissioning details of the DC2000 series Optimiser / Compensator Controller may be viewed here. POSSIBLE REPLACEMENT The most common control application to which theDC2000 series Optimiser / Compensator Controller may be applied comprises the following combination of inputs and outputs.  Outside Air Temperature Sensor Inside Air Temperature Sensor Compensated Heating Temperature Sensor Variable Temperature Heating Circuit Valve Actuator Boiler/s (2 maximum) H W S On/Off output (independent) Should such inputs and outputs be confirmed then the DC1100 Optimiser / Compensator may be installed in place of the DC2000 series Optimiser / Compensator Controller. Details of the DC1100 Optimiser / Compensator Controller may be viewed here. Drayton A7xx series Sensors connected to the DC2000 Optimiser / Compensator Controller are compatible with the DC1100 Optimiser / Compensator Controller and may therefore be retained. N.B. It should be noted that where a DC2000 series Optimiser / Compensator Controller is included in an installation of a more complex nature then an alternative solution utilizing different products may need to be considered. In such installations not only will the DC2000 series Optimiser / Compensator Controller need to be replaced but its associated Sensors will also need to be replaced. Resolutions to such installations may best be determined following a review of the control system installed by a member of the local Schneider Electric office.

Issue Climatronic Compensator Controller (CSC5252 or CSC5352) configuration set-up Product Line Field Devices Environment Climatronic CSC5252 CSC5352 Cause Checking configuration or new system setup. Resolution Set-up and access information is available from the CSC User Guide. Click here. A graphical example of settings are available from here in the form of an Excel Calculator. CSC Access details are also available on the calculator.

Issue If the points of the 3 rd party system are integrated into Vista through OPC, how to create a Vista alarm for these points? Product Line TAC Vista Environment Vista OPC Server Vista Server Cause Sometimes OPC points also need to trigger alarms in the system. Resolution Create a Change of State object for the point that needs to trigger an alarm. In the Alarm tab, choose the alarm control for this alarm, while typing the Text for tripped alarm and reset the alarm. For analog value, alarm Low limit, High limit, and Minimum change can be set for the triggering boundary. For digital alarm, just keep the default setting for the limitation set. In the Object tab, choose the signal that needs to trigger an alarm. And also select the Referenced property to "Value".   Open the Property window of the signal and set the Watch Setting to "Alarm" or "Watch". Toggle the OPC point manually into the alarm and return to normal once to verify the alarm is in the queue.   For specific settings for I/NET points integration, refer to Additional settings necessary to receive Vista Alarms from an I/NET point for detailed information.

Issue To assist locating data sheets if you do not have access to the Schneider Electric Buildings Business Extranet and other company storage areas. Product Line Satchwell MicroNet Environment Unifact Pro Data sheet NCP Palm Cause To assist customers that do not have access to our internet or partner websites Resolution Click here to download the MLi for the Unifact Pro Controller. Click here to download the data sheets for Unifact Pro Controller. Click here to download the NCP Palm Engineering Guide.

Issue Replacing the Rainbow parallel dongle with an USB type. Product Line Satchwell MicroNet Environment Dongle Parallel USB Cause The majority of PC's are no longer supplied with parallel ports. Resolution MicroNet View's software effective end of support date was 30th June 2014 The service Product Support have provided in the past, to upgrade a MicroNet View parallel port dongle to a USB type, is no longer available. Click here to view PA 00298 Software Support Policy for Satchwell MicroNet The monitor tool and I/O server software, that no longer require a dongle, are available as free of charge downloads, for access to the downloads, please see "MicroNet View's Monitor Tool" dongleless software download location. For further general information, please see SNP I/O server and NCP I/O server dongleless software download location.  

Issue ModBMS not connecting to Sigma, error " Not monitoring, DDE not init " Product Line Satchwell Sigma Environment Sigma ModBMS Cause Windows 7 and Server 2008 removed a functionality that allowed ModBMS to be able to poll the Sigma server.  Resolution A Sigma executable file is required to be running in the background. Create a shortcut to the desktop and open c:\Sigma\Bin\SigTop.exe. ModBMS will now poll the Sigma server and the error disappears. SigTop will need to be started each time the PC is restarted. It may be necessary to place a shortcut in the startup menu or similar. 

Warning Hazard of Electric Shock: Remove all power from all devices before removing any covers or doors of the system. Disconnect power at the device and at the power source. Issue Setting up a Xenta 121-HP to properly control a heat pump that has an internal reversing valve control, separate termination blocks for heating and cooling, and an isolation valve. Typically a unit with this configuration is designed to operate with a standalone thermostat that will signal a cooling call or heating call separately depending on the setpoint. A manufacturer in which this specific situation has been documented in the past has been McQuay heat pumps. Product Line TAC Vista Environment ZBuilder LonMaker NL220 Vista Cause If the 121-HP is configured in ZBuilder without a reversing valve but still has an isolation valve, it causes the isolation valve to close in certain situations. As seen in the screen capture below, when the reversing valve is unchecked, ZBuilder activates the "Compressor operation" setting box. The choices are either for the compressor to operate in cooling mode or heating mode. If cooling mode is selected then the 121-HP will close the isolation valve in heating mode and vice versa. Resolution There are two options that can be used to allow the 121-HP to control this specific kind of heat pump setup. Turn the 121-HP into a 121-FC Note: Using this method will completely change the controller and all bindings will be lost. It is suggested that the controllers be labeled 121-FC to help minimize future confusion. This method does not allow for a time delay between the isolation valve opening and the compressor command. Instead each goes off of different terminal load levels. Download the latest NXE-APB files for the 121-FC off of the Exchange Extranet. Then download the 121-FC APB file into the controller. Reference Downloading new NXE or APB files using Lonmaker for LonMaker and Downloading new NXE or APB files using NL220 for NL220 download help. Once the 121-HP has been converted into a 121-FC, set the template up with the following settings. Cooling set to On/off Primary heating set to On/of Fan set to On/off The final setting is to create a point that can be used as the isolation valve. Go to the Configuration tab > Free I/O > Function input and activate aux pump function. Underneath the activation, check aux pump active in heating mode and aux pump active in cooling mode. This aux pump feature will turn on whenever there is a terminal load and turn off in the deadband. Use a Relay with Traditional Heat Pump Setup In order to accommodate this type of setup, the following items and settings need to be in place. A relay needs to be installed off of the 121-HP The ZBuilder template needs to be configured in a typical heat pump configuration with a reversing valve present, isolation valve, and a single point dedicated to the heating/cooling compressor command. Under the configuration tab > Application > Valve configuration > Reversing valve, it should be set to a closed contact in heating mode The wiring diagram below is how the unit needs to be wired up to run properly. In this example K1 is the fan command, K2 is the reversing valve command, K3 is the heating/cooling compressor command, and K4 is the isolation valve command.

Issue Safety information can be requested when distributing thermostats, particularly via airplane. Product Line Field Devices Environment Room thermostat Cause Not all documentation is available to download. Resolution TC300 3AxL Series Low Voltage Certificate of Conformity TC300 3AxL Series Electromagnetic Compatibility Certificate of Conformity TC300 3AxLM-DLS-DLMS Series Low Voltage Certificate of Conformity TC300 3AxLM-DLS-DLMS Series Electromagnetic Compatibility Certificate of Conformity Battery material safety data sheet. Identification and classification report for air transport of goods.  

Issue Need to purchase and replace the battery for the IAC-TS and IAC-600. Product Line Satchwell MicroNet Environment IAC-600 IAC-TS Cause The battery has failed and requires replacement. Resolution The battery is a lithium crystal SNAPHAT M4T28-BR12SH1 These are available from RS Components. The RS Components stock number is 189-1239. Manufacturer name: STMicroelectronics Manufacturer's part number: M4T28-BR12SH1 Specifications Category Detachable Lithium Power Source Maximum Operating Temperature 70°C Minimum Operating Temperature 0°C Mounting Through Hole Pin Count 4 Product Height 8mm Product Length 21.84mm Product Width 18.03mm Supplier Package SNAPHAT   Documentation M4T28-BR12SH M4T32-BR12SH TIMEKEEPER SNAPHAT (battery and crystal) Data Sheet.pdf Statement of conformity.pdf

Issue Satchwell “VG” combined Actuator & 2-port Valve Body assembly requires replacement. Environment Stand alone Satchwell “VG” combined Actuator & 2-port Valve Body assembly VG Actuator 2-port Valve Body Cause Obsolescence of Satchwell “VG” combined Actuator & 2-port Valve Body assembly. Resolution Replace Satchwell “VG” combined Actuator & 2-port Valve Body assembly with Schneider Electric MD10B Actuator, LMD-MB Linkage Kit and Satchwell MB series 3-port Valve Body of appropriate size. N.B.  The MB 3-port Valve Body may be converted to a 2-port Valve Body by installing a plug in Port 3   Details of the original Satchwell “VG” combined Actuator & 2-port Valve Body assembly may be viewed here. Details of the replacement Schneider Electric MD10B Actuator may be viewed here. Details of the replacement Schneider Electric LMD-MB Linkage Kit may be viewed here. Details of the replacement Satchwell MB 3-port Valve Body may be viewed here. N.B. It is possible that the "VG" Actuator may have been fitted with an Auxiliary Switch. If so then an MD-S1 Auxiliary Switch may be fitted to the MD10B Actuator if required. Details of the MD-S1 Auxiliary Switch may be viewed here.  

Issue Editing a point on the MPM in Continuum via BACnet will result in the follwoing error message:  "Communications failure due to routing device not available" Product Line Andover Continuum Environment SmartStruxure Lite Multi-Purpose Manager, Building Expert, CyberStation Cause Known Bug Resolution To resolve the issue, CyberStation must be updated. Option 1: Upgrade CyberStation to 2.0. Option 2: Download and apply the 921 hotfix to v1.94 SP1

Issue User can’t configure floating application on SE7300C Product Line EcoStruxure Building Expert Environment   SE7000 Cause Can be a bad connection and misconfiguration of parameters Resolution 2 PIPES APPLICATION 4 PIPES APPLICATION NB: Respecting mandatory configuration steps in the diagrams above will improve the solution. Change over sensor shall be 10K type II thermistor. When water temperature goes below 74°F the system will be in cooling mode and when water temperature goes over 78°F the system will be in Heating mode. * From the diagrams, the thermostat closes the common side of the connection.

Issue Triggering a default value to internal AO points when the value is reset to 0 Product Line TAC INET Environment I/NET Seven Event Sequence 0 Cause #A controller will run Event Sequence 0 any time one of these changes occurs: Power up Controller reset Database restore Internal AO point values will default to 0 (zero). If this AO point is used as a setpoint in a DDC loop, this could cause issues. Resolution Option 1 Use Event Sequence 0 to set internal setpoint values to a default value following power loss, reset, or restore. When connected to the controller, navigate to Edit > Controller > Event Sequences Click on Seq 0 and choose "Add." Sequence 0 is reserved to run on reset. Add an action Action: Output (or Output with lock) Delay: Defaults to 0 Point: AO that is used for the setpoint Skip/Value: Desired default setpoint value. Below is an example of what an Event Sequence 0 looks like of an Internal AO used as a setpoint. In this example anytime Event Sequence 0 runs, it will output a value of  75 degrees. Option 2 Open up Event Sequences. Add event 0 to the list. Event sequence number 0 runs at a power up, after a reset of controller power or a database restore of the DCU. Modify event sequence 0. Put every interanal "AO" setpoint in this event with a default value that is safe to operate at. 

Issue Need to download the XIF and NXE files for a SVEA Lon I/O Module DR-N-3D1M (0-10V) module, but having difficulty locating these files on the Extranet. Product Line Andover Continuum, EcoStruxure Building Expert, EcoStruxure Building Operation, Satchwell Sigma, TAC Vista Environment SVEA XIF NXE Cause The difficulty in locating these files, is due to them being identified by their article number, in this case DR-N 3DIM. This number was used when these were classified as the SVEA devices. The Schneider version is now known as MTN881001, and not DR-N 3DIM. Resolution The Schneider Electric (MTN881001) files are located on The Exchange Download Center Download the XIF / NXE files for the SE MN881001 Download the XIF / NXE files for the SVEA DR-N 3DIM Note: It appears that although these devices are both classified as Lon I/O Module 1-10V, the XIF / NXE files are different.

Issue Blank screens seen when starting WorkStation, Device Administrator, License Administrator and Software Administrator Product Line EcoStruxure Building Operation Environment Windows 10 Cause Graphics Card Driver Issue In this case there was a "Intel(R) HD Graphics 4600" graphics card (this is the Intel Core i7-4790 CPU built-in graphics card) and there was a dedicated "NVIDIA GeForce GT 630" graphics card which was in the end also the culprit because it was the one with the outdated graphics driver, the Intel one didn't required an update. Resolution Update Display Drivers Fix for Windows 10 Professional Version 1803 below Start Computer Management Go to Display adaptors and update driver  Search online for drivers  Verify with second run after driver update if newest driver is installed 

Issue User can’t disable the fan in heating mode Product Line EcoStruxure Building Expert Environment   SER7000 | SER8000 Cause  Misconfiguration of the thermostat Resolution SER7300 In some application, the device may control baseboard heat or different controls and the user may want to stop the fan in heating mode. The user shall set the Pulsed HT parameter to ON and Fan Cont to Off Auto and this will solve the issue. SER8300 The user shall set Fan Cont to Off Auto and this will solve the issue.

Issue Wind Up Inhibit WUH Product Line Satchwell Sigma Environment BAS BAS2000 BAS2800 BAS2800+ Sigma Cause In Sigma a control object is displaying WUH as reason for state (RFS). However, it cannot be found on the objects attributes in Object Editor Resolution The site was likely to have been upgraded from BAS. In BAS, the Wind Up Inhibit (WUH) was used to prevent Control objects from continuing to operate (the integral action would continue to act and increase or decrease the control output) when the plant was in an 'off' state. In Sigma, WUH is no longer used, therefore there is no reference to it within the object when edited. However, during a BAS to Sigma upgrade, the reference is retained and then becomes inaccessible. The controller will display WUH as a reason for state when the control object is displayed in Sigma or EBO. To correct, record the parameters and delete the control object, re-create and restore the same parameters.

Issue When you view a Xenta Log through Vista you get estimated values in the Log. Product Line TAC Vista Environment Vista 4.x.x Vista 5.x.x Cause If the site has many Xenta logs in 200,300 or 400 controllers you maybe exceeding the limit for trend uploads to Vista. The maximum limit is 4 uploads of Xenta logs per minute to Vista. If you exceed this value estimated values may appear in the Xenta logs. Here is a link to a white paper description on this topic TAC Xenta Trend Logs Whitepaper Resolution Here are some steps to check if the estimated values are caused from excessive Xenta trend upload.   Calculate the amount of uploads that are occurring in the database. As an example if a Xenta log is set to store information in the controller for 1 hour and upload at 80% full. This equates to 0.8 uploads per hour or 0.013 uploads per minute. If you work out this rate for all the xenta logs in the database you can then calculate how many uploads are occurring per minute. To extract all the Xenta Logs in the Vista database follow these steps also shown in the video. From TAC Vista workstation select View and then Search from the toolbar. select the browse option for the field "Type of devices or objects" Expand the heading labeled Files. Expand the heading labeled Trend Logs under the Files heading. Expand the heading labeled Trend Log Vista under the Trend Log heading Check the Trend Log Xenta box Select OK In the Property value dropdown list select the" Log size byte " option. This is the Xenta Log duration in seconds. Select the search Button The search results now show all the Xenta Logs. You may need to uncheck the "interrupt search if more than 1000 results" to capture all Xenta trends In the Search output Pane right mouse click and select "Additional properties" Expand the list and select "Retrieve at % Full option" The Search results then show all Xenta trends with Xenta Log duration and retrieve % full. Copy this list in Excel and calculate the uploads per minute from this Database. Below is an image showing the data pasted into Excel, displaying the equation to calculate the upload per minute value per log:  If you find your total "uploads per minute" exceed 4 then reducing this may remove the estimated values. Some ways to do this are. Extend the Xenta log storage time in the Xenta device if memory permits. Change the upload percentage to a greater number if it has been decreased below 80%  Increase the Xenta sample rate which will allow for the Xenta storage to be extended as in point 1.

Issue Configuration help for doors on a 1284, 7920, or 7910 Setting up Access Control on an SCU or DPU Can’t remember if Dip Switch 7 is up for the Card Number equals Individual Number without a MIP on the DPU or was that Card Translation Checked box the issue Product Line TAC INET Environment I/NET Seven Access Control SCU 1284, DPU 7920, DPU 7910 Cause Configuration errors or failure to remember how to properly configure the door editor Resolution SCU 1284 Yes → Large Number Format Yes → In Door Editor, CHECK Using Card Translation     ↓No   ↓No             Card Number equals individual scheme Yes → In Door Editor, UNcheck Using Card Translation     7920 Yes → MIP Board Yes → Using Large Numbers Yes → In Door Editor, CHECK Using Card Translation ↓No   ↓No   ↓No             In Door Editor, UNcheck Using Card Translation         EPROM Yes → Large number format Yes → Dip Switch 7 on         ↓No             Card Number = Individual Number Yes → Dip Switch 7 off 7910 Yes → EPROM Yes → Large number format Yes → Dip Switch 7 on         ↓No             Card Number = Individual Number Yes → Dip Switch 7 off