DEIF GCP3脈沖累加模塊
滑動(dòng)ICT和MPI模塊同時(shí)沿著模塊安裝單元的頂部和底部導(dǎo)軌引導(dǎo)電路板的頂部和底邊緣。8.推動(dòng)面板，直到模塊的后邊緣牢固地固定在背板連接器中。9.轉(zhuǎn)動(dòng)每個(gè)面板的2個(gè)鎖緊螺釘?圈，將模塊鎖定到位。當(dāng)鎖緊螺釘上插槽的開(kāi)口端朝向面板中心時(shí)，模塊鎖定到位。完成第3節(jié)中詳述的配置和安裝步驟后，INFI-NET到計(jì)算機(jī)接口模塊就可以投入運(yùn)行了。本節(jié)提供了INFI-NET到計(jì)算機(jī)接口模塊日常操作的必要信息。通電后，INNIS01網(wǎng)絡(luò)接口從模塊（NIS）微處理器將保持重置模式，直到其相關(guān)傳輸模塊（INICT01或INICT03）移除重置模式，并允許固件執(zhí)行自診斷例程。ICT模塊確定NIS模塊何時(shí)上線。NIS模塊在雙列直插式開(kāi)關(guān)SW3的位置7和8設(shè)置的環(huán)路模式下聯(lián)機(jī)，計(jì)數(shù)器顯示由雙列直撥式開(kāi)關(guān)SW4的位置4到8設(shè)置。使用計(jì)數(shù)器顯示（面板LED）檢查NIS模塊的操作。如果發(fā)生通信錯(cuò)誤，主機(jī)模塊會(huì)在模塊狀態(tài)中設(shè)置NIS模塊通信狀態(tài)位。使用回路上的監(jiān)控設(shè)備（控制臺(tái)、計(jì)算機(jī)等）查看模塊狀態(tài)。
事件計(jì)數(shù)器
內(nèi)部計(jì)數(shù)器維護(hù)事件計(jì)數(shù)，如傳輸?shù)南?shù)、重試次數(shù)和丟失的消息數(shù)。表3-5列出了事件計(jì)數(shù)器的完整列表。模塊面板上的A組和B組LED顯示事件計(jì)數(shù)器的二進(jìn)制值（LED B-8為最高有效位，LED A-1為最低有效位）。圖4-1顯示了A組和B組LED的位置。錯(cuò)誤計(jì)數(shù)器錯(cuò)誤，如接收錯(cuò)誤、具有循環(huán)計(jì)數(shù)錯(cuò)誤的消息等，與事件計(jì)數(shù)器一樣，都保存在內(nèi)部計(jì)數(shù)器中。有關(guān)錯(cuò)誤計(jì)數(shù)器列表，請(qǐng)參閱表3-6。表5-1列出了NIS模塊面板LED上出現(xiàn)的錯(cuò)誤代碼。INICT01 INFI-NET TO COMPUTER TRANSFER MODULE LED和控制器INICT02模塊的面板具有以下組件（見(jiàn)圖4-2）：?狀態(tài)LED。?停止按鈕。?兩個(gè)內(nèi)存狀態(tài)指示燈。?八個(gè)CPU LED。?復(fù)位按鈕。狀態(tài)LED是一個(gè)雙色（紅色和綠色）LED，顯示ICT模塊的工作狀態(tài)。它有三個(gè)州。表4-1列出了狀態(tài)LED狀態(tài)的含義。如果狀態(tài)LED指示存在錯(cuò)誤，請(qǐng)參閱第5節(jié)了解糾正措施。
Slide the ICT and MPI modules
in while guiding the top and bottom edges of the circuit boards along the top and bottom rails of the module mounting unit. 8. Push on the faceplate until the rear edges of the modules are firmly seated in the backplane connectors. 9. Turn the 2 latching screws of each faceplate ? turn to lock the module in place. The modules are locked into place when the open end of the slot on the latching screws face the center of the faceplate.After completing the configuration and installation steps detailed in Section 3, the INFI-NET to computer interface modules are ready to be put into operation. This section provides the necessary information for daily operation of the INFI-NET to computer interface modules.On power up, the INNIS01 Network Interface Slave Module (NIS) microprocessor stays in reset mode until its associated transfer module (INICT01 or INICT03) removes the reset mode and allows the firmware to execute self-diagnostic routines. The ICT module determines when the NIS module will go on-line. The NIS module comes on-line in the loop mode set by positions seven and eight of dipswitch SW3, with the counter display set by positions four through eight of dipswitch SW4. Use the counter display (faceplate LEDs) to check the NIS module operation. If communication errors occur, the host module sets the NIS module communication status bits in the module status. View the module status using a monitoring device (console, computer, etc.) on the loop.
Event Counters
Internal counters maintain a count of events such as the number of messages transmitted, retries, and number of messages lost. Table 3-5 has a complete list of event counters. The group A and B LEDs on the module faceplate display a binary value of the event counters (LED B-8 is the most significant bit, LED A-1 is the least significant bit). Figure 4-1 shows the location of the group A and group B LEDs. Error Counters Errors such as receive errors, messages with circulation count errors, etc. are maintained in internal counters just like the event counters. Refer to Table 3-6 for a listing of error counters. Table 5-1 lists the error codes that appear on the NIS module faceplate LEDs. INICT01 INFI-NET TO COMPUTER TRANSFER MODULE LEDs AND CONTROLS The faceplate of the INICT01 module has the following components (see Figure 4-2): ? Status LED. ? Stop pushbutton. ? Two memory status LEDs. ? Eight CPU LEDs. ? Reset pushbutton.The status LED is a two color (red and green) LED that displays the operating status of the ICT module. It has three states. Table 4-1 lists the meaning of the status LED states. Refer to Section 5 for corrective action if the status LED indicates that an error exists.
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