LAM 853-190023-001 平面分開
為了幫助系統(tǒng)集成商，PXI Express機(jī)箱和系統(tǒng)模塊的制造商必須記錄其產(chǎn)品的功能。.ini文件包含最低文檔要求，這些文件由ASCII文本組成。系統(tǒng)集成商、配置實(shí)用程序和設(shè)備驅(qū)動(dòng)程序可以使用這些.ini文件。NI PXIe-1085系列機(jī)箱的功能說(shuō)明文件包含在機(jī)箱附帶的軟件介質(zhì)上的chassis.ini文件中。此文件中的信息與系統(tǒng)控制器的信息相結(jié)合，可創(chuàng)建一個(gè)名為pxisys.ini（PXI系統(tǒng)初始化）的系統(tǒng)初始化文件。系統(tǒng)控制器制造商為包含系統(tǒng)控制器的特定機(jī)箱型號(hào)提供一個(gè)pxisys.ini文件，或者提供一個(gè)實(shí)用程序，可以讀取任意的chassis.ini文件并生成相應(yīng)的pxisys ini文件。NI的系統(tǒng)控制器為NI PXIe-1085系列機(jī)箱提供了pxisys.ini文件，因此不需要使用chassis.ini文件。
一些National Instruments機(jī)箱，如NI PXIe-1085系列和NI PXI-1044/1045，能夠使用MAX中的觸發(fā)器路由選項(xiàng)卡將觸發(fā)器從同一機(jī)箱內(nèi)的一條總線路由到另一條總線，如圖2-10所示。注意：選擇任何未禁用的路由都會(huì)自動(dòng)保留要路由到的所有觸發(fā)總線中的線路。如果您使用NI DAQmx，它會(huì)為您保留和路由觸發(fā)線路，因此您不必手動(dòng)路由觸發(fā)線路。完成以下步驟以在MAX.1中配置觸發(fā)器路由。在配置樹中，選擇要在其中路由觸發(fā)線路的機(jī)箱。2.在右側(cè)窗格中，選擇底部附近的觸發(fā)器路由選項(xiàng)卡。3.對(duì)于每條觸發(fā)線，選擇“向右布線”、“從中間向外布線”或“向左布線”以在所述方向上布線該線上的觸發(fā)器，或者選擇“禁用”作為不使用手動(dòng)布線的默認(rèn)行為。4.單擊“應(yīng)用”按鈕。使用系統(tǒng)配置和初始化文件PXI Express規(guī)范允許PXI Express機(jī)箱和系統(tǒng)模塊的多種組合。
Some National Instruments chassis, such as the NI PXIe-1085 Series and the NI PXI-1044/1045, have the capability to route triggers from one bus to others within the same chassis using the Trigger Routing tab in MAX, as shown in Figure 2-10. Note Selecting any non-disabled routing automatically reserves the line in all trigger buses being routed to. If you are using NI-DAQmx, it will reserve and route trigger lines for you, so you won’t have to route trigger lines manually. Complete the following steps to configure trigger routings in MAX. 1. In the Configuration tree, select the chassis in which you want to route trigger lines. 2. In the right-hand pane, select the Trigger Routing tab near the bottom.
PXI-1 System Configuration 1. Launch MAX. 2. In the Configuration tree, click the Devices and Interfaces branch to expand it. 3. If the PXI system controller has not yet been configured, it is labeled PXI System (Unidentified). Right-click this entry to display the pop-up menu, then select the appropriate system controller model from the Identify As submenu. 4. Click the PXI system controller. The chassis (or multiple chassis, in a multichassis configuration) is listed below it. Identify each chassis by right-clicking its entry, then selecting the appropriate chassis model through the Identify As submenu. Further expanding the PXI System branch shows all devices in the system that can be recognized by NI-VISA. When your system controller and all your chassis are identified, the required pxisys.ini file is complete.
PXI-1 System Configuration 1. Launch MAX. 2. In the Configuration tree, click the Devices and Interfaces branch to expand it. 3. If the PXI system controller has not yet been configured, it is labeled PXI System (Unidentified). Right-click this entry to display the pop-up menu, then select the appropriate system controller model from the Identify As submenu. 4. Click the PXI system controller. The chassis (or multiple chassis, in a multichassis configuration) is listed below it. Identify each chassis by right-clicking its entry, then selecting the appropriate chassis model through the Identify As submenu. Further expanding the PXI System branch shows all devices in the system that can be recognized by NI-VISA. When your system controller and all your chassis are identified, the required pxisys.ini file is complete.