Building Automation Knowledge Base

Issue Need to re-add firmware package to EBO for SmartX controllers and receive the error "firmware already exists" Product Line EcoStruxure Building Operation Environment Building Operation Workstation Building Operation Multi-purpose Controller (MP-C) Building Operation Multi-purpose VAV (MP-V) Building Operation Room Controller (RP-C) - all Building Operation IP-IO Cause Cannot add a firmware package of the same revision if one is already in the firmware list. Resolution Open the Control Panel within WorkStation and select Firmware Management Select the firmware package you want to delete and click the delete button

Issue  64-061-31 is no longer available and needs to be replaced Environment 64-061-31  TAC valve TAC DWV - PN 6 DN 32  Cause valve no longer available Resolution This old TAC Valve is no longer in production, Schneider Electric do not have any PN6 valves. It's mainly Germany/Austria that uses PN6 valves. Dimensionally they are the same as PN16 valves, the main difference is the wall thickness but in all practical terms it costs more to have two separate tools for each valve PN hence why Schneider and 90% of other suppliers just have PN16 even though they may only ever be used under 6 bar static pressure. As a replacement flanged valve, DN32, the V211 valve is suggested

Issue Unable to control an I/NET DO object from a TGML graphic in HTML5, works in Workstation and Java based webstation Environment WebStation Cause The data type may not be correct.  The value should be written to PvControl as either a 0 or a 1.  If this is set as a string data type, Workstation can correct for this error, but HTML5 is less forgiving. Resolution locate the line of javascript where you write the value to the bind. this is typically a setValue(bind, value) function. bind = the full bind name of the pvControl binding. value = the value that is intended to be written to the pvControl bind. One line before the setValue command, enter the line " parseFloat(value)"  - This will convert that value to float. If the value is a 0 or a 1, the setValue command will now correctly set the I/NET value.

Issue Getting an error when trying to launch Run_RunBioAdmin. Unhandled exception has occurred in your application. If you click Continue, the application will ignore and attempt to continue. I you click quit the application will close immediately.  InvalidArgument=Value of '255' is not valid for 'SelectedIndex'.  Parameter name: SelectedIndex. Environment Continuum 1.94 and above. Cause The database got corrupted and needed to be cleared out and restarted. Resolution To resolve this the following steps need to be done: Open up SQL Connect to the db and then Continuumdb Open up the Tables and expand it Look for VStationSysConfig Run a query to delete the rows in it and then restart VStation again.

Issue Which controllers do not use the minimum trip and close command? Environment UC, MR, or ASC Cause The editor lets you enter a value in the minimum trip and close field; however, the UCI, MRI, MCI, or I/Site Lan replaces the entered value with the default value of "0" when it is downloaded to the UC, MR, or ASC. Resolution The minimum trip and close parameters are not used for Unitary Controllers (UC), Micro Regulator (MR), or Application Specific Controllers (ASC) output commands.

Issue Can I use the 08 & 09 DI\DA points on a 7910A and 7920 DPU as internal points? Environment 7910A DPU 7920 DPU Cause These points are dedicated points and cannot be used for any other purpose. Resolution The 08 & 09 DI\DA points on a 7910A and 7920 DPU: Cannot be used as internal points Cannot have calculation extensions

Issue How to make local CPH work on a stand-alone MR-VAV-AX. Environment MR-VAV-AX Cause Even after you select local-CPH in the parameters and connect a contact to the local cph point, the unit probably won't switch modes without further modification. The application is looking for a zero for one mode and something above 1 for the other. Problem is that the factory calibration of the inputs can only be done to within 1 or 2 counts. With the standard conversion coefficient of 5 and 0, you'll still see a value of 5 or 10 for a shorted input. Changing the conversion coefficient wouldn't help because you need an absolute zero. Resolution Even though this is for stand-alone use, you need to connect the unit to an MCI or ISITE Lan. You can leave the address at 0 and set address 0 to MR or ASC in the MCU configuration. Open the ASC editors and update MCI for address 0 and check the point value for local cph with that input shorted. If it doesn't read 0, proceed. Next select Edit, Controller, MR functions. Highlight 0 and hit the Hardware button. These M and Bs are here as a result of the factory calibration. Reduce the B on input 02 (3rd entry down) by one or 2 or even 3 so that the local cph input reads 0 when shorted. When your done with the first one, you can plug in the rest and use the same MCI database provided you leave them all at 0.

Issue What are the differences between DPU EPROM rev 2.21 and 2.22? Environment DPU EPROM Cause On the 2.22 rev, one problem was corrected and an enhancement included. Resolution The problem was when using first key auto-unlock, the software would show the door as unlocked, when the first valid read had not yet unlocked it. It now remains in the secure mode in software until the first valid read. The enhancement is that when a DPU is operating on back up battery power, the power led will now flicker to indicate the change from commercial power.

Issue One of the established DPUs is now offline, but the other DPUs appear to be operating except the transactions have stopped coming to the host. Alarms and messages are still working. A DPU restore to the DPUs has been performed. QP has been checked, and the AC files have been repaired.. Environment DPU Cause In AMT, there is most likely a Failure to Download message. Resolution To correct the transaction symptom Go to the data directory of I/NET Look for a file named ACSAVE.TMC Delete it.

Issue ASC that has stop communicating The site lost and restored messages coming from this controller. ASC has had communication problems in the past. ASC will not take downloads. Environment I/NET ASC Cause These communication errors could result in corruption of the ASC's NOVRAM. Resolution Clear the memory in the ASC by doing the following: Remove power from the unit Set DIP switches 6 through 12 to the "ON" position and restore power. Remove power again. Set DIP switches 6 through 12 to the "OFF" position and restore power. Remove power again and rest the switches to their normal configuration. Perform a ASC update.

Issue What is a Parent Point in a UC (Unitary Controller)? Environment Unitary Controller Cause Feature information Resolution A parent point is nothing more than the AO or DO point to which you add a UC extension: VAV, AHU, PID, FLT, or HPMP. The functioning of the extension is directly tied to the state of the parent point and the command pairing. Refer to TCON 209 or TCON237 for important details.

Issue Set up a two wire LTS80 Lini-Temp sensor on a 7740 and 7741 DCU. Environment 7740 DCU 7741 DCU LTS80 Lini-Temp sensor Cause Conversion coefficients must be set properly for correct reading of temperatures. Resolution For Fahrenheit: M = 0.17582 B = -279.4 For Centigrade: M= 0.09768 B = -173.0 Refer to TCON 097 for 10K resistor placement

Issue Using the Xenta 511, will value pages only show temperatures in Celsius? How do you get them to display in Fahrenheit? Environment XBuilder Cause Regional settings can be project wide or per point. Resolution When creating a new TAC Xenta 511 project, select to use US values. You can also select conversions to occur per object.

Issue PCU Analog Outputs to transducers do not have consistent performance. The first voltage-to-pneumatic transducers installed worked fine. Additional transducers have been added; and now, none of the transducers operate properly. Environment PCU Voltage-to-Pneumatic transducers Cause The amperage or power draw limitations of the PCU have most likely been exceeded. Resolution Sum up the total current and / or power draw of all the transducers and compare this to the maximum current or power output of the PCU. Reduce the number of transducers to stay within the limitations.

Issue MR 160 resets every minute. It is the only sub-LAN controller resetting. Replacing the hardware has no effect on the resetting issue. Environment MR160 Cause Station conflicts can cause this behavior. The MR 160 is unique in that it uses two consecutive addresses on the subLAN and is designed for inputs only. The MR 160 provides no output points or MR-resident DDC modules. Resolution Make sure there are no station address conflicts. Make sure the database has not violated the specifications for inputs only. Refer to TCON 126 for more information.

Issue Share the value of a DM point with several controllers using indirect points Environment I/NET Resident I/O Cause Sharing global points designated as DMs. Resolution Use an internal DI point with a "P0" calculation tied to the DM point. Set this DI as Global. The indirect points (which exist in the other controllers) should be built as DIs with the same Station Parameters used for the DM point.

Issue Some TCONs mention specific Belden wire products for LAN and Sub-LAN installation. Where can more information about Belden wire be found? Environment I/NET LAN and Sub-LAN Cause Wiring standards dictate certain communication wires to be run for proper comms. Resolution Go to the Belden website for more information: http://www.belden.com.

Issue After an upgrade of a PCU, if the controller is restored, will that reset the consumption data? Environment PCU Cause A restoration of the controller will delete existing consumption data. Resolution Yes. Refer to TCON 237, page 7-17.

Issue Does anti-passback (APB) affect both the entry reader and the exit reader? Environment I/NET Cause I/NET denies access due to anti-passback on entry readers only for safety reasons. Resolution I/NET denies access due to anti-passback on entry readers only. A key/card is never denied access on an exit reader. This is for safety purposes; you should always be able to exit a building.

Issue What if the NPR 2000 goes away until I cycle power to get it back? Environment I/NET Site Cause What if the NPR 2000 goes away until I cycle power to get it back? Resolution If it continues to communicate on the Ethernet port or the controller LAN port only, it most likely is a firmware (.bin file) issue. If an NPR stops communicating over the Ethernet as well as the controller LAN and the LEDs on the unit are totally abnormal until you cycle power, it very likely may need a new boot load. This is accomplished by ordering a jtag cable and the boot loader software and downloading the flash rom with a new boot load. The latest boot load revision is 1.02. If this load has been installed at the factory, you will find a sticker on the flash rom chip. We recommend that if you upgrade the boot load yourself, that you label the unit appropriately.