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266DRHFSRRRA1-E6N2控制器檢測儀
設置輸入范圍sw-A分別用于8和4輸入配置的所有輸入范圍的設置，如下表所示。除了輸入范圍外，sw-A還有兩個功能背景z開關A7對于8路配置為打開，對于4路配置為關閉z開關A8必須打開才能正常工作以下標準前面板指示燈反映模塊通信狀態(tài)并提供現(xiàn)場側信號狀態(tài)指示。
指標狀態(tài)匯總表設置輸入平均值可以補償雜散噪聲和其他形式的振幅通過制作最新輸入樣本來通過模擬輸入濾波器的調制移動平均值的一部分&數(shù)字濾波的一種形式。這種移動平均技術對更新間隔沒有影響。
下表顯示了用于在七個輸入平均值中進行選擇的sw–B設置8和4電路配置的采樣周期。
sw–B除了平均采樣外還有其他功能；開關B7設置為打開A組十進制代碼輸出的二進制代碼輸出或關閉（8中的輸入1-4電路模式和4電路模式中的輸入1-2）。
開關B8對組的作用相同
B、 設置輸入平均值可以補償雜散噪聲和其他形式的振幅通過制作最新輸入樣本來通過模擬輸入濾波器的調制移動平均值的一部分&數(shù)字濾波的一種形式。這種移動平均技術對更新間隔沒有影響。
下表顯示了用于在七個輸入平均值中進行選擇的sw–B設置8和4電路配置的采樣周期。
sw–B除了平均采樣外還有其他功能；開關B7設置為打開A組十進制代碼輸出的二進制代碼輸出或關閉（8中的輸入1-4電路模式和4電路模式中的輸入1-2）。開關B8對組的作用相同
B、 概述
由于模塊在出廠時經(jīng)過校準，設計師的意圖是10 V參考電壓調整將有效一年。它應該是此后每年重新校準。
需要以下工具來調整模塊的參考電壓：z精度為0.0001 V、電壓為10 V的精密數(shù)字讀數(shù)伏特計刻度：6-1/2位，保證4位計數(shù)精度。
z一把1/8英寸的薄刃螺絲刀。
z一把小頭十字螺絲刀。
z一種粘合劑（如Loctite或Glyptol），用于固定裝飾罐調整螺釘。
注：在重新校準過程中，現(xiàn)場接線可能保持連接，因為模塊的工作狀態(tài)和參考電壓調整不相互影響。而且模塊不需要預熱即可達到溫度。
Setting Input Averaging
It is possible to compensate for spurious noise and other forms of amplitude modulation coming through the analog input filter by making the latest input sample part of a moving average–a form of digital filtering. This moving average technique has no affect upon the update interval. The following tables show sw–B setting for selecting among seven input average sample periods for both 8 and 4 circuit configurations. sw–B has other functions in addition to average sampling; switch B7 is set to on for binary code output or off for decimal code output for group A (inputs 1-4 in the 8 circuit mode and inputs 1-2 in the 4 circuit mode). Switch B8 does the same for group B.
Setting Input Range
sw-A settings for all input ranges for both 8 and 4 input configurations, respectively, are shown in the following tables. sw-A has two functions in addition to input range setting z Switch A7 is on for an 8-circuit configuration and off for a 4-circuit configuration z Switch A8 must be on for normal operation The following standard front-panel indicators reflect module communication status with the controller and provide an indication of field-side signal status. Indicator status summary table
Setting Input Averaging It is possible to compensate for spurious noise and other forms of amplitude modulation coming through the analog input filter by making the latest input sample part of a moving average–a form of digital filtering. This moving average technique has no affect upon the update interval. The following tables show sw–B setting for selecting among seven input average sample periods for both 8 and 4 circuit configurations. sw–B has other functions in addition to average sampling; switch B7 is set to on for binary code output or off for decimal code output for group A (inputs 1-4 in the 8 circuit mode and inputs 1-2 in the 4 circuit mode). Switch B8 does the same for group B.
Overview
Since the module is shipped factory-calibrated, it is the designer’s intention that the 10 V reference voltage adjustment will be good for one year. It should be recalibrated annually thereafter. The following tools are needed to adjust the module’s reference voltage: z A precision digital readout voltmeter with an accuracy of 0.0001 V on a 10 V scale: 6-1/2 digits, to guarantee 4 bit count accuracy. z A 1/8-inch bit, thin-blade screwdriver. z A small-bit Phillips-head screwdriver. z An adhesive (such as Loctite or Glyptol) to secure trim-pot adjustment screws. NOTE: Field wiring may remain connected during the recalibration procedure, as the module’s working state is not interactive with the reference voltage adjustment. Also, the module does not require warmup to attain temperature.
