Issue What is PU? Environment I/NET site Cause What is PU? Resolution This allows you to attach a 4-20 mA auxiliary power supply or power converter for a supplementary unit.

Issue Is there a problem with special days in time schedule operations? Environment I/NET Site Cause Is there a problem with special days in time schedule operations? Resolution No, the problem most often is in programming. Our software operates such that if there is a special day defined, anywhere in the system, all other time schedules are affected. If they have no entry for that special day, they will do NOTHING. Therefore, if a person defines a special day in one schedule, they must visit all others and define what they are to do on that day also. If it is an access control system, this applies to both door mode and personnel schedules. Read the release announcement for I/NET 2.44a.

Issue What is acceptable for an earth ground? Environment I/NET site Cause What is acceptable for an earth ground? Resolution It must be a direct electrical path to earth ground. In other words, connecting the controller ground wire to a lug, where earth ground is also connected is ok. Connecting the controller ground wire to a lug in one corner of an enclosure, and the earth ground is on a lug at another corner is NOT OK. That is using the enclosure as part of the electrical path, and not a direct connection. It is NOT acceptable to use conduit or vav boxes as part of the path, either. The same applies for LAN shield grounding.

Issue What is an easy way to check ground connections? Environment I/NET site Cause What is an easy way to check ground connections? Resolution Take a multi-meter in a voltage setting, either ac or dc. Meter from controller ground to lan shield. You should read no greater than 250 millivolts. If you do read higher, go over ground connections to ensure they are good, metal to metal connections

Issue Why is grounding important? Environment I/NET site Cause Why is grounding important? Resolution Grounding is crucial for the I/NET family of controllers for 2 reasons: Lan communications require that reference to be successful. Improper controller grounding can take a controller to a boot state, or merely clear the data base from memory.

Issue I can't get my dongle (PSU) license to work. Environment I/NET 2000 Site Cause I can't get my dongle (PSU) license to work. Resolution You have to install the appropriate license file, on your license server. For in-house licenses: TAC Engineer.pfl, you can find it on TARAI or on the TAC software installation CD) For end user licenses: The license file you received via mail from Product Support.

Issue How do I get the system information using the serial channel RS-232 B? Environment I/NET RS-232 B Serial port Cause This information cannot be gathered using a web browser. Resolution Get system information using serial channel RS-232 B (See below how to connect terminal emulator to serial channel) Command err a Displays all error messages in the system error log. Print it to terminal emulator.  Command sysinfo Displays all system information such as software versions etc. Print it to terminal emulator. Disconnect and connect power. Print what is displayed on the screen during boot to terminal emulator.

Issue How many messages are buffered on a 7801? Environment I/NET Seven 7801x, 7803x, 7804x External or Embedded TAPs. Cause Even though every device in the system contains a message queue, only a few of the devices will successfully buffer the queued messages for later distribution. All controllers and Taps distribute messages out of their RS485 port even with the absence of any LAN communication. This is due to the fact that there is no requirement for an acknowledgment to be received at the generating device. The RS485 LAN is for both solicited and unsolicited message traffic. The only devices that perform extended buffering are the ones which directly communicate to polling devices such as the 7801 Taps, 7803 Taps, 7804 Taps, and all DPUs/SCUs. The MRs, ASCs, and UCs do not generate messages; messages relating to these devices are generated by the relevant MRI, MCI, etc. Resolution A 78-01/03/04/06 EPROM tap can buffer approximately 1000 messages. A 78-01/03/04/06 MIP tap can buffer approximately 1200 messages.

Issue How many messages are buffered on a 7716xx / 7718xx / 7756xx / 7780xx / 7792xx? Environment I/NET Seven PCU 7716, 7718, 7756, DLCU 7780, MRI 7792xx Cause Even though every device in the system contains a message queue, only a few of the devices will successfully buffer the queued messages for later distribution. All controllers and Taps distribute messages out of their RS485 port even with the absence of any LAN communication. This is due to the fact that there is no requirement for an acknowledgment to be received at the generating device. The RS485 LAN is for both solicited and unsolicited message traffic. The only devices that perform extended buffering are the ones which directly communicate to polling devices such as the 7801 Taps, 7803 Taps, 7804 Taps, and all DPUs/SCUs. The MRs, ASCs, and UCs do not generate messages; messages relating to these devices are generated by the relevant MRI, MCI, etc. Resolution The 7716xx/18xx/56xx/80xx/92xx can buffer approximately 150 messages.

Issue How many messages are buffered on a 7798xx / 7793xx / 7791xx? Maximum number of the Message which can be stored on I/SITE locally? Environment I/NET Seven  7798, 7798B, 7798B1 and 7798C (I/SITE LAN) (SLI) Cause Even though every device in the system contains a message queue, only a few of the devices will successfully buffer the queued messages for later distribution. All controllers and Taps distribute messages out of their RS485 port even with the absence of any LAN communication. This is due to the fact that there is no requirement for an acknowledgment to be received at the generating device. The RS485 LAN is for both solicited and unsolicited message traffic. The only devices that perform extended buffering are the ones which directly communicate to polling devices such as the 7801 Taps, 7803 Taps, 7804 Taps, and all DPUs/SCUs. The MRs, ASCs, and UCs do not generate messages; messages relating to these devices are generated by the relevant MRI, MCI, etc. Resolution Controller software prior to I/NET version 2.xx = approximately 150 messages. Controller software for I/NET version 2.0 Without emulated tap: 100 Messages With emulated tap: 1000 Messages.

Issue Need to know how many messages are stored in the buffer of an NPR Environment I/NET NPR Cause Host workstation disconnected or not masked to receive messages.  Need to know how much data is recoverable Resolution NetPlus Routers = approximately 1000 messages. Once this is full, messages are deleted on a First in First out basis

Issue What is the Standard Cubic Inches per Minute for a PWMP1? Environment PWMP1 Cause Configuration Question Resolution 216 SCIM @25 psi.

Issue Which Controllers and Taps are supported by the MIP? Environment I/NET site Cause Which Controllers and Taps are supported by the MIP? Resolution 7700 7740 7741 7760 7770 7720 (8000 RTU) 7730 (P4300 DCU) 78035 LAN Tap 78040 Host/Link Tap (Dial) 78050 Link Tap (Dial) 78060 LAN Tap (Dial) 78041 Host/Link Tap (Dial w/o modem) 78051 Link Tap (Dial w/o modem) 78061 LAN Tap (Dial w/o modem) 7810 Printer Tap 78010 Host Tap 78015 Host/Link Tap (metal enclosure) 78020 Link/LAN Tap (metal enclosure) 78035 LAN Tap 78040 Host/Link Tap (Dial) 78050 Link Tap (Dial) 78060 LAN Tap (Dial) 78041 Host/Link Tap (Dial w/o modem) 78051 Link Tap (Dial w/o modem) 78061 LAN Tap (Dial w/o modem) 7810 Printer Tap

Issue I replaced the EPROMs and RAM in a 7700 DCU with a MIP, but now cannot do a software restore. What is wrong? Environment I/NET site Cause I replaced the EPROMs and RAM in a 7700 DCU with a MIP, but now cannot do a software restore. What is wrong? Resolution Verify that the network configuration is correct in the NET. Con. Editor. The "Dn" field for the TAP or Controller must be configured with a "Y" before the Tap/Controller will appear in the software Restore Editor.

Issue What is the maximum number of Docutrend cells a workstation can have? Environment I/NET Cause Configuration Resolution 1023 Cells.

Issue What is Docutrend? Environment I/NET site Cause What is Docutrend? Resolution A proprietary data storage, retrieval, and custom report definition and generation program provided with I/NET.

Issue What is a Demand Control in I/NET Software? Environment I/NET site Cause What is a Demand Control in I/NET Software? Resolution This editor is used to monitor and control electrical power consumption. With it, you can maintain a daily or monthly consumption total. Demand control enables demand shedding of electrical loads when demand is high, and the restoration of the loads when demand levels drop. This editor is used to direct demand data to a Docutrend cell.

Issue Explain the term "Distribution Group" Environment I/NET site Cause Explain the term "Distribution Group" Resolution I/NET has four distribution groups, each with eight mask positions, extending the number of possible masks in a system to 32. Messages must match both a distribution group and active mask position before being accepted by a host.

Issue What does DLCU stand for? Environment I/NET site Cause What does DLCU stand for? Resolution Distributed Lighting Control Unit. This is a specialized type of controller or DCU. The 7780 is a DLCU. The DLCU is specifically designed for lighting.

Issue What are Conversion Coefficients? Environment I/NET site Cause What are Conversion Coefficients? Resolution These are mathematical constants a controller uses to convert analog input / outputs from the digital value used by the microprocessor to analog display values. Conversion coefficients are also used to convert digital commands from the microprocessor into analog outputs which are then used by field interface devices.