Building Automation Knowledge Base

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.

Issue How do I cold start an NPR 2000? Environment Netplus Router - Model NPR-2000-C Cause Cold starting an NPR 2000 is a common troubleshooting technique to clear up a number of communication problems that may arise. Resolution Open the front cover. Depress the Idisk holder (looks like a battery holder) so that the conductors short against each other. While holding that, press the small black button on the front left of the unit. 2 LEDs on the right will begin flashing and continue for about 20-30 seconds (more or less). When they stop and 2 LEDs to the right and left of them come on solid, press the black button again. If you did it right, the 4 LEDs will begin flashing back and forth. The NPR is now in boot state and requires a software restore via the serial port. You won’t be able to connect to the NPR via Ethernet since it is at boot and has no TCP/IP address.

Issue Can you use Thinnet/RG-58 cabling with an NPR 2000? Environment I/NET Site Cause Can you use Thinnet/RG-58 cabling with an NPR 2000 Resolution Yes. You have to order the AUI NPR with an AUI adapter.

Issue The Station buttons are missing in the MCU Configuration dialog box Environment I/NET 2000 Site Cause The Station buttons are missing in the MCU Configuration dialog box. What happened? Resolution To provide you with the ability to configure or hide the statistical features of I/NET 2000, there are three .reg files included in the I/NET 2000 application root directory. When you double-click the desired *.reg file, it will update the DiagnosticFlag in the registry to the associated condition. Each file and its function is as follows: NoStats.reg - No statistics dialog shown, Stats.reg - Shows statistical data but does not allow back-ground ASC resets or manual MR/ASC resets, Stats&Reset.reg - Shows statistical data with ability to perform background ASC resets or manual MR/ASC resets.  For more information see TCON 217.

Issue What is Gateway? Environment I/NET Site Cause What is Gateway? Resolution A gateway is a method of enabling communications between two or more network segments. A gateway is usually a dedicated computer that runs gateway software and provides translation service, which allows for communications between dissimilar systems on the network. For example, using a gateway, an Intel-based PC on one segment can both communicate and share resources with a Macintosh computer or mainframe. Another function of gateways is to translate protocols. A gateway can receive an IPX/SPX message that are bound for a client running another protocol, such as TCP/IP, on a remote network segment. After the gateway determines the message packet's destination is a TCP/IP station, the gateway will actually convert the message data to the TCP/IP protocol.

Issue Does Event printing in I/Net require a Windows printer driver? Environment I/NET Site Cause Does Event printing in I/Net require a Windows printer driver? Resolution No, unlike AMT printing the Event printing process in I/Net 'dumps' the data to the designated printer port, for example LPT1.

Issue How can I know when new products are released? Environment I/NET Site Cause How can I know when new products are released? Resolution Visit the Building Business Extranet. Email a request to the Buildings Business ExchangeMail marketingadmin@buildings.schneider-electric.com

Issue When entering a value of 1 into Code 08 on a 7780 Hand Held Console to enable all lights on, all the lights do not come on. Environment I/NET Site using the Hand Held Console (HHC) Cause When entering a value of 1 into Code 08 on a 7780 HHC to enable all lights on, all the lights do not come on Resolution Code 08 on a 7780 enables the all lights on function. If you go to Edit/Controller/Configuration and select “all lights on”, this will accomplish the same thing. This setting enables 00DI to be used as a trigger to turn all lights on at once, regardless of time schedule, calculations or anything else. Like wise if you enter “Code” 09 in the HHC, all lights off will be enabled and 01DI can be used as the trigger. This can also be done in Edit/Controller/Configuration setting.

Issue The 901 modem is dialing multiple times (6-8) before successfully registering a change on the alarm window. Environment 901 Modem Cause Normally it only takes one dial-up attempt to establish the communication link. If it takes 6-8 times, it indicates modem or telephone line problems. Resolution In the dial-up parameters, define the number of dial up attempts before line block. 10 is the default value.

Issue Why is the 901 dialing once for each time the alarm is tripped or reset? Is there a way to request that the alarm queue be emptied with one call? Environment 901 Modem Cause This is because the dial up parameters have been configured to do this. Resolution Check the "Alarm delay" parameters where tripped/reset/ack is specified. If you don't want the TAC Xenta 901 to dial up when an alarm is reset or acked, just uncheck the options. Note that the options are per alarm priority.

Issue Without an Ethernet, how can workstations connect to the controller LAN? Environment I/NET site Cause Without an Ethernet, how can workstations connect to the controller LAN? Resolution Workstations connect to the Controller LAN through specialized communication devices called Taps. (TCON 209, 1-3)

Issue How many workstations and NPRs can be placed on one Ethernet LAN? Environment I/NET site Cause How many workstations and NPRs can be placed on one Ethernet LAN? Resolution 63 workstations and 99 NPRs. (TCON 209 1-4)

Issue How many Host Taps are supported on the Host LAN? Environment I/NET site Cause How many Host Taps are supported on the Host LAN? Resolution A host LAN supports up to 8 Host Taps and 16 Link Taps. Each Host Tap can connect directly to a workstation or indirectly to a workstation through a modem. Use the host LAN to connect multiple host workstations over a large area, segregating functions at each station. Devices on the host LAN communicate with each other at 19.2 Kbaud or 9600 baud. The host LAN reconfigures automatically as devices are added or removed. (TCON209, 1-5).

Issue How many Link Taps are supported on a Host LAN? Environment I/NET Site Cause How many Link Taps are supported on a Host LAN? Resolution Sixteen. (TCON 209, 1-5)

Issue Which I/NET program is primarily responsible for transferring I/Net system messages to the database files? Environment I/NET site Cause Which I/NET program is primarily responsible for transferring I/Net system messages to the database files? Resolution DBServer. (TCON 209, 1-8)

Issue Which program starts and runs Exporter or Reporter? Environment I/NET site Cause Which program starts and runs Exporter or Reporter? Resolution I/NET Timer. (TCON209, Tab 1-1. I/NET Software Components)

Issue What visual indication is present when I/O server is running? Environment I/NET I/O Server Windows operating systems Cause Use the Windows system tray to determine if I/NET's companion program, I/O Server is running. This must be running to facilitate communications. Resolution The I/NET host workstation needs to communicate with many external devices, including other host workstations, NPRs, Taps and controllers. I/NET uses a companion program, I/O Server, to facilitate efficient communication functions. I/O Server must be running for most I/NET communication functions to occur. Each time it is started, I/NET launches I/O Server, which runs in the background. By default, I/O Server continues to run as a background task even after I/NET is shut down. This enables your host software to continue to receive I/NET data even if the host software is not operating. Should you need to disable the I/O Server temporarily, you can shut it down manually. You can also instruct I/NET to shut down all I/NET-related background tasks automatically. When I/O Server is running, an icon is visible in the Windows system tray. The specific icon loaded will depend upon whether the workstation is directly connected to a Tap. Right-clicking on the icon allows you to manually shut down I/O Server or to start the configuration program.

Issue IP routing information specific to each profile is stored where? Environment I/NET Site Cause IP routing information specific to each profile is stored where? Resolution It is stored in a *.DAT file. (TCON 209, Configuration Profiles,1-9)

Issue Is it OK to change configuration profiles in a stable I/NET network? Environment I/NET network Cause In accordance with TCON 209, there may be differences in the routing data for each configuration profile. Resolution You should not change configuration profiles in a stable I/NET network. (TCON 209, 1-10)

Issue Can I/NET 2000 use more than one serial port at a time? Environment I/NET site Cause Can I/NET 2000 use more than one serial port at a time Resolution No. (TCON 209, Serial Port Configuration 1-10)