Issue After Entering Password, an error message appears:"Inetw performed an illegal operation, causing an invalid page fault in mfc42.dll." Environment I/NET Cause Error in the Registry Resolution Warning! Improper use of regedit may damage PC’s operation. Using regedit, delete the tool bars from the registry. The I/NET toolbars are rebuilt automatically. Shut down I/NET Start the registry editor Go to Hkey_Current_User\Software\CSI-Controls Systems International\InetW\Toolbars Delete all Tool Bar entries

Issue Can not physically reach the ASC but the switch settings need to be changed. Environment I/NET Seven MRs ASCs Cause The units have been installed where they cannot be reached, or are otherwise difficult or impossible to physically reach. Resolution The settings can be altered through I/STAT or the Host's ASC parameters Editor. The latest modification to the configuration always takes precedence.

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 I've designed Graphic Pages using a I/NET 2000, 2.XX host, and place them in an I/NET 2000, 1.XX system. Can you move Graphics among different revisions? Environment INET Site Cause Moving graphics among different versions of I/NET Resolution Unfortunately, the answer is no.

Issue Since the introduction of Integrated Access Control and the ability to monitor Supervised Inputs, Technical Support Services has received many inquiries on how to make supervised DI/DA points work in I/NET 7700. Questions range from "Can I run the wire 100 feet or 300 feet? Do I use 1% resistors or 5% resistors? Some of the controllers are more flexible than others with respect to these issues. Since there are many variables which affect the operation of supervised inputs, this document should give you enough information to make DI/DA supervised points work in almost any situation. Environment Supervised Input High Security Areas Cause There are 3 basic categories of I/NET 7700 controllers in regards to how they handle the supervision of inputs. The first group consists of the 7716 PCU, 7718 PCU, and 7756 PCU. The second is the DPU 7910, DIU 7930, and the DIO 7940. Finally the DPU 7920 is in a group by itself. None of the other CSI controllers were designed to handle supervised inputs. What distinguishes these groups is that they require different voltages to change from one state to the next. Resolution The following (Table 1) lists what voltage each controller expects to see at its input terminals in order to report the correct state. 7716, 7718, 7756 7910, 7930, 7940 7920 For 2-resistor supervision: State LOW HIGH LOW HIGH LOW HIGH STATE short 0 2.34 2.5 2.89 0 1.26 3 closed 2.03 3.12 2.89 3.59 1.26 2.94 1 open 2.81 3.90 3.59 4.35 2.94 4.19 0 cut 3.59 5.00 4.35 5.00 4.19 5.00 2 For 1-resistor supervision: State LOW HIGH LOW HIGH LOW HIGH STATE closed 0 2.34 2.50 2.94 0 1.27 1 open 2.03 3.12 2.94 4.15 1.27 3.75 0 cut 2.81 5.00 4.15 5.00 3.75 5.00 2 Table 1 As you can see, the voltage values for the first group (7716, 7718, 7756) overlap from one state to the next. In this case, the point will remain in the current state until its’ upper or lower limit is crossed, much the same as a temperature differential. The various installation guides for each of these DCU types differ as to what value of resistor and what length of wire can be used; but, if the end result of the circuit produces these voltages, the supervised DI/DA will work. Therefore, you can vary the resistor values and/or wire length but these voltage levels must still be achieved. Don’t let the order in which the state descriptions appear in Table 1 mislead you. The order you see in the table is not the order in which the system expects to find them. They should be entered as OPEN-CLSD-CUT-SHRT (in that order) in the State Description editor for a 2-resistor DI/DA point and OPEN-CLSD-CUT for a 1-resistor DI/DA point. For check out purposes, the STATE number can be viewed from the Hand Held Console when displaying the DI/DA point. The state values are 0-3, which are found in the last column of Table 1. Another useful technique for displaying these voltage values within I/NET 7700 is to temporarily assign the input as an AI. The conversion coefficient can be determined using the I/NET 7700 calculator (see Figure 1.). The Equipment counts high is 4095 for the 7716PCU, 7718PCU, and the upper board inputs of the 7756PCU; 32,767 for the lower board on the 7756PCU; and 255 for the 7910, 20,30, and 40. Engineering units low and high are 0 and 5 respectively for all controllers. The value of the point can now be viewed from the screen or the Hand Held Console. 05/23/95 14:21:31 Tue Conversion coefficients Host 00 (shm) Link 01 [020 link] DCU 02 [PCU 7716] Select (Linear Flow) # M B --+------------+------------ 0 0.001221 0 Conversion equation Linear 1 0 0 2 0 0 Equipment counts low 0 3 0 0 Equipment counts high 4095 4 0 0 Engineering units low 0 5 0 0 Engineering units high 5 6 0 0 7 0 0 8 0 0 9 0 0 10 0 0 11 0 0 12 0 0 13 0 0 14 0 0 15 0 0 Press ESC to copy to M & B Figure 1 Keep in mind that the 7718PCU is switchable for the pull up voltage to either 5 or 15 VDC. For the supervised DI/DA points to work properly, jumper J38 must be set to 5V. A simpler approach to ensure a DI/DA supervised point will work correctly is to limit the length of the wire and thus the resistance that the wire adds to the circuit. If you use 1% 1000 ohm resistors(as recommended), the maximum total resistance that your wire can add for the supervised point to work properly is listed below. DCU Type 1-resistor configuration 2-resistor configuration 7716, 18, 56 650 ohms 1250 ohms 7910, 30, 40 300 ohms 400 ohms 7920 325 ohms 325 ohms Table 2 Note: The value for 1 resistor configuration should be within +/-10 ohms and 2 resistor configuration should be within +/-20 ohms to account for resistor tolerances. These values include both conductors of the wire (shorted together at one end and measured from conductor to conductor at the other end). They allow for (in the case of 2-resistor supervision) the short to be detected at any point on the wire (all the way out to the contact). These are the maximum resistance values and the actual resistance should be kept as low as possible. These values were calculated using the voltages in Table 1 and assume that the supervision resistors are exactly 1k ohms. The values for the first group take into account the overlap of voltage levels between states and are intended to avoid those zones. These values might lead one to believe that a supervised DI/DA point can be wired with ten or twenty-thousand feet of wire. This is not the case due to the noise which wire can pick up and make the input unstable. So the distance should be kept as short as possible.

Issue Protect DCUs and PCUs from sensors shorts Environment DCU PCU Cause If Distributive Control Units (DCUs) and Process Control Units (PCUs) have sensors in critical areas and one of the sensors shorts, it may affect the readings of the other sensors on the controller. Resolution Isolate the input signal into the controller: Add an in-line 20 milliamp fuse or circuit breaker Use an Isolated DC to DC transmitter. For an example of such a device go to the Kele 2000/ 2001 Parts Catalog, model DT13, or go to their web site www.kele.com, or call them at 901-937-4900, International 901-382-6084.

Issue Can I edit the configuration of Site Tap, 78061, or an emulated 06 Tap through a host tap (direct) connection? Environment 78061 Site Tap Emulated 06 Tap Host Tap connection Cause Being directly connected to a system and wanting to make changes to the site tap. Resolution No. You must dial into these site taps to update their configurations.

Issue Exporting files works fine from I/NET 2000 1.XX, but when Reporter is making a report, an  "Active X" error message is displayed. Environment I/NET 2000 Cause The ODBC driver or its toolbars has been corrupted.  Resolution In the PC's registry, delete the toolbars and restart Exporter / Reporter. If this does not fix the problem then re-install the ODBC driver. If you are running an I2K rev 2.xx you have to re-install I2K too. WARNING: Modifying the registry can damage the operation of the workstation if done incorrectly.

Issue Inputs on PCU are consistently reading too low Environment I/NET Cause There may be a short on one or more of the inputs or the power supply may have a problem. Resolution To check for a short in the inputs: Remove all the inputs Place one input back on the PCU Check the point value If it is normal, install and check the next input. Repeat through all inputs In summary, a short in a sensor's input to the PCU will affect all inputs on that bank.

Issue What is the difference between an Internal Analog Input (AI) and Pulse Input (PI) when it comes to fractional digits? Environment I/NET 7700 Cause It is not always clear the difference between Internal AIs and PIs when it comes to fractional digits. A clarification note will be added to the next release of the I/NET 7700 Operator Manual, but until then, please adhere to the following when you want to display fractional digits for either Internal point types. Resolution Internal Analog Inputs (AIs) Internal AIs are limited to a maximum value of 2 16 (65535). Internal AIs fractional digits are a direct result of the M value in the conversion coefficient table. If you want to display a value in hundredths (x.xx) the M must be .01 and the B=0 and the highest number to be displayed is 655.35. If you want a number to display a value in tenths (x.x) the M must be .1 and the B=0 and the highest number possible is 6553.5. Internal Pulse Inputs (PIs) Internal accumulators can accumulate not only pulses but analog values as well, but when it comes to fractional digits Internal PIs are completely different from Internal AIs. PIs are a floating point type number. This means there is no limit to the magnitude or the number of fractional digits, except that only 6 significant digits may be displayed at any one time. Therefore, the fractional digits are not ruled by the number of decimal places of the M value in the conversion coefficient table. In fact, for a Internal PI to work properly, you must utilize a conversion coefficient pair of M=1 and B=0. An Internal PI with a calculation of P0+P1, where P0 and P1 are External AIs with values of 34.1234 and 72.5678, would be able to display the 4 decimal places with no trouble. In fact, if you used a conversion coefficient of M=.0001 and B=0 for the Internal PI, and the AIs never changed their value, the Internal PI calculation would start rounding off the value every calculation. This rounding effect would in fact be shown by the value of the Internal PI getting smaller and smaller with every scan of the Internal PI. Remember, for a Internal PI to work properly, you must utilize a conversion coefficient pair of M=1 and B=0.

Issue How I/NET 2.3X has the ability to designate a particular host to do an automatic restore Environment I/NET site Cause How I/NET 2.3X has the ability to designate a particular host to do an automatic restore Resolution Go to the host’s Network Configuration/Link Summary. Highlight the desired row. In that row you will find a column labeled “R/H”. This stands for Restore-Host. Modify this row. In the Restore Host prompt, place the same host number you entered in the host’s active Configuration Profile. (Don't forget to make sure that host has current save files!)

Issue How can I view the routing table on a host that is part of a network using TCP/IP? How can I remove entries in the host's routing table? Environment I/NET Host IP Network Cause Troubleshooting IP communication often involves viewing the current routing tables at a host station. This will help determine if they need to be cleared. Resolution View the Host Routing Tables  Go to Start > Run > and type "cmd" to open a DOS screen Type "route print" and hit Enter Delete an entry from the Host Routing Tables Example to delete address 157.0.0.0: Go to Start > Run > and type "cmd" to open a DOS screen Type the following: route delete 157.0.0.0 and hit Enter Type "route print" and hit Enter. This address should not appear. 

Issue Limit what is available to the user on a dedicated I/NET host on the Ethernet. For example, I do not want the user to be able to get to a DOS prompt then modify the Routing Table. Environment I/NET site Cause Limit what is available to the user on a dedicated I/NET host on the Ethernet. For example, I do not want the user to be able to get to a DOS prompt then modify the Routing Table. Resolution This can be done. Remove the DOS icon from Windows. Or, it may be better to edit the permission rights of the user.

Issue On Screen Indication of a Telnet session into a NPR Environment Telnet NPR Cause Indicating to the user when a telnet session has been initiated into an NPR. Resolution "CSI NetPlus Router Telnet Server" "Connected to remote NPR” (Name of the NPR) followed by version number, build, and date "Type help for a list of commands"

Issue How to add entries in the host’s routing table Environment Command Prompt Cause Routing Table Errors Resolution As an example: add the address 157.0.0.0 Go to a DOS screen and type the following: Route add 157.0.0.0 Then type: Route Print This address should appear.

Issue Site has a I/NET 2000 PCU set as an 06 TAP for ADAA, and the PCU has a synchronous EPROM and synchronous BIN file loaded. Do they need to change the EPROM and BIN file to Asynchronous if they install an integrated dial modem on the serial port of the same PCU? Environment I/NET site Cause Site has a I/NET 2000 PCU set as an 06 TAP for ADAA, and the PCU has a synchronous EPROM and synchronous BIN file loaded. Do they need to change the EPROM and BIN file to Asynchronous if they install an integrated dial modem on the serial port of the same PCU? Resolution No, but you do need to use the correct modem, cables, settings, profiles, etc.

Issue The Process Control Unit (PCU) is set as a 06 TAP. Will it still function as a 01 TAP? Environment I/NET site Cause The Process Control Unit (PCU) is set as a 06 TAP. Will it still function as a 01 TAP? Resolution Yes, by design the 78010 TAP emulation is still functional.

Issue Site has I/NET 2000 PCU set as an 06 TAP for ADAA, and PCU has a synchronous EPROM and ASYNCHRONOUS BIN file loaded Environment I/NET site Cause Should the site change the EPROM? Resolution We strongly recommend you do. If the PCU goes to “Boot-State”, the SYNCHRONOUS EPROM in the PCU will not reset the asynchronous ADAA modem correctly. You won’t be able to dial into the ADAA port of this controller until this is corrected by doing a download or changing the EPROM.

Issue I never reset the "Sync" LED on the FOI after I corrected the line fault on the output of the CRR. Will this cause any communication problems? Environment I/NET CRR Cause Line Fault Resolution Reset the sync LED If you can NOT extinguish the Sync LED you should find the fault. Leaving this light “on” does not cause communication problems.

Issue ADAA problems: can not dial in or out of the site A PCU is set up as a 06 TAP. The RX and TX LEDs are flashing on the RS-232 card. A CBL048 cable is connected from the RS-232 card to the modem. The RD and SD lights are flashing. Environment ADAA Cause The wrong BIN file is in the PCU. Resolution You have the wrong BIN file in the PCU. If the PCU is at the “Boot State”, you may have the wrong EPROM too. Install the correct BIN file; and it is strongly recommend to put in a compatible Asynchronous EPROM.