Building Automation Knowledge Base

Issue I can not see the access controls editor in the I/NET system. What did I do wrong? Environment I/NET Site Cause The "Enable Access Control" check box must be checked. This box is located in the I/O Server driver. Resolution Edit the I/O Server configuration Check the access box Log out of I/NET Log back and the access is now available.

Issue Deleting doors in the access control editor Environment I/NET Site with Access Control Cause Deleting doors in the access control editor Resolution When deleting a door from a 7791 DPI, 7793 MCI or a 7798 I/Site LAN, make sure to delete the door Parameters before deleting the door (DO) point. Deleting the door (DO) point without previously deleting the door Parameters may cause unpredictable system performance. If the point has already been deleted first, the best way is to: Re-add the point again Save it in the NetCon Follow the correct sequence. Then it will work fine.

Issue Second door reader (09 Door) does not work on 7920 controller Environment 7920 DPU Cause If you have defined one door in a DPU-7920, and the door's exit reader parameter is set to anything besides NO, then the second reader port automatically becomes the exit reader. Resolution If you have defined two doors in a DPU 7920, neither door can have an exit reader defined. Set the door's exit reader parameter to NO.

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 How to number a zone for an exterior door for an anti-passback (APB) system Environment I/NET Cause Application assistance Resolution If the entry reader at an exterior door is physically located in an area, that has no zone number. Then the zone number assigned to the entry reader of an exterior door should match the zone number assigned to the exit reader of that door.

Issue Activating the release to exit button failed to open the door Environment Access/Door Editor Cause Two definitions in the Access/Door Editor make the release button fail to open the door: door release and door strike. Resolution Define the door release switch in the Access\Door Editor. This switch can either be Normally Open NO, or Normally Closed NC Define the door strike in the access\door editor as BOTH

Issue Can I use both door readers on a DPU for two elevators? Environment I/NET Site Cause Can I use both door readers on a DPU for two elevators? Resolution No, An elevator DPU supports only one door and one reader. Anytime a door is defined as an elevator; the second door is no longer available for use.

Issue Which time schedule has the highest override control? Environment I/NET site Cause Which time schedule has the highest override control? Resolution The temporary time schedule overrides special days and the regular time schedule, thus it has the highest control.

Issue Can I use a Master-Slave time schedule in an access control system? Environment I/NET Site Cause Can I use a Master-Slave time schedule in an access control system? Resolution The access control system does not support a Master-Slave scheduling relationship between points, as does the standard I/NET time scheduling editor.

Issue Ways to force an immediate dial on an I/NET DPU Dial type system: Environment I/NET DPU AD/AA Dial system Cause Need for force a modem to dial a site Resolution Performing the following access control changes will cause the system to immediately dial affective remote sites, regardless of the DPU Dial type settings. A) Changing an individual or group record type to “Temporary” B) Modifying an individual or group “Temporary Schedule”

Issue Can I add a DPU on an existing 7792 Sublan? Environment 7910 DPU 7920 DPU 7792 SubLAN Cause The 7792 are for MRs and ASCs only. Resolution A DPU cannot be added on an existing 7792 Sublan.  To correct this: Do a Memory Clear on the controller with a HHC. With the HHC, change the controller to a 7793. This will allow you to have MRs, ASCs And DPUs on the same SubLAN.

Issue Where can I find information on lighting controller programming? Environment I/NET Site Cause Where can I find information on lighting controller programming? Resolution It is outlined in the System Operator Guide, TCON 207 for I2K rev 1.XX, TCON 236 for rev 2.XX, chapter 15 for both. There is some additional information, such as the addresses for zone points, are limited to 1200-1507. Another specific is, the control descriptors for the zone, must have the first of the pair equal a value of one. The control descriptor for the circuit points, need the first of the pair to equal a value of zero. There is an example save file in all host soft wares, sav subdirectory, named DEF7780.sav. A person should copy this file, rename it to their controller address and load it, to view examples of points.

Issue Using I/NET2000, Can a site change a filemaster setting? Environment I/NET2000 Cause Using I/NET2000, can a site change a filemaster setting? Resolution Not, without difficulty. Setting a pc as a filemaster makes irreversible changes in software. We, in tech support have not found a way to reverse them, short of uninstalling Inet, deleting the root directory, and removing registry entries. Then reload Inet software. See pages 1-12 through 1-14 of TCON 237, Technical Reference Guide for a discussion of filemaster functioning.

Issue In LonMaker, how do I get rid of multiple message tags within a base unit virtual function block? Environment Vista Site Cause In LonMaker, how do I get rid of multiple message tags within a base unit virtual function block? Resolution Right click on the VFB and select to delete NVs & MTs. All unconnected message tags will then be deleted.

Issue In the event of an alarm can TAC Vista Server dial out using RAS to another TAC Vista workstation? How does a local site call a remote Service Center? Using RAS? Environment TAC Vista Server IV RAS Cause In the event of an alarm, a service technician can be paged using an email service paging system and then call up the remote location using RAS or PC Anywhere. Resolution Service centers will need to use the mail receiver functionality within TAC Vista.

Issue Should we recommend Message tag bindings be performed after the commissioning of the device? Environment I/NET Site Cause Should we recommend Message tag bindings be performed after the commissioning of the device? Resolution No, this should not be necessary. It may be preferable, however, for a dialed network as the 901 device must be added to the network when connected to the network.

Issue Where do I find I/NET's phone entries? Environment I/NET 2000 Cause This file is only created if a dial setup is actually being used. Resolution The phone entries are stored in the file inet.phn in the directory c:\inet2000\data. 

Issue What is the function of an IP address? Environment I/NET Site Cause What is the function of an IP address? Resolution The IP address uniquely identifies a device on a TCP/IP network. No two computers can have the same IP address.

Issue What is the function of a subnet masking Environment I/NET Site Cause What is the function of a subnet masking Resolution The IP address is made up of two parts - the network and host addresses. The subnet mask identifies which parts of the IP address represent the network and which part represent the host.

Issue Can I have more than one version of I/Net 2000 on the same hard drive? Environment I/NET 2000 Cause Can I have more than one version of I/Net 2000 on the same hard drive? Resolution Yes, although we do not recommend that you do this, it is possible. You will need to first partition your hard drive. After you have created two partitions, you will need to install a version of windows on each partition. One of the partitions will have to be WinNT with NT being installed first. This way you can have I/Net 1.20 on C:\ and I/Net 2.10 on D:\. The two versions of I/Net 200 cannot share a Windows registry.