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266DRHFSRRRA1-E6N2控制器检测仪
设置输入范围sw-A分别用于8和4输入配置的所有输入范围的设置，如下表所示。除了输入范围外，sw-A还有两个功能背景z开关A7对于8路配置为打开，对于4路配置为关闭z开关A8必须打开才能正常工作以下标准前面板指示灯反映模块通信状态并提供现场侧信号状态指示。
指标状态汇总表设置输入平均值可以补偿杂散噪声和其他形式的振幅通过制作最新输入样本来通过模拟输入滤波器的调制移动平均值的一部分&数字滤波的一种形式。这种移动平均技术对更新间隔没有影响。
下表显示了用于在七个输入平均值中进行选择的sw–B设置8和4电路配置的采样周期。
sw–B除了平均采样外还有其他功能；开关B7设置为打开A组十进制代码输出的二进制代码输出或关闭（8中的输入1-4电路模式和4电路模式中的输入1-2）。
开关B8对组的作用相同
B、 设置输入平均值可以补偿杂散噪声和其他形式的振幅通过制作最新输入样本来通过模拟输入滤波器的调制移动平均值的一部分&数字滤波的一种形式。这种移动平均技术对更新间隔没有影响。
下表显示了用于在七个输入平均值中进行选择的sw–B设置8和4电路配置的采样周期。
sw–B除了平均采样外还有其他功能；开关B7设置为打开A组十进制代码输出的二进制代码输出或关闭（8中的输入1-4电路模式和4电路模式中的输入1-2）。开关B8对组的作用相同
B、 概述
由于模块在出厂时经过校准，设计师的意图是10 V参考电压调整将有效一年。它应该是此后每年重新校准。
需要以下工具来调整模块的参考电压：z精度为0.0001 V、电压为10 V的精密数字读数伏特计刻度：6-1/2位，保证4位计数精度。
z一把1/8英寸的薄刃螺丝刀。
z一把小头十字螺丝刀。
z一种粘合剂（如Loctite或Glyptol），用于固定装饰罐调整螺钉。
注：在重新校准过程中，现场接线可能保持连接，因为模块的工作状态和参考电压调整不相互影响。而且模块不需要预热即可达到温度。
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.
