模拟量扩展模块DIP开关是做什么用,应该
怎么设置,请各位指点
最佳答案
EM 235配置
开关1到6可选择模拟量输入范围和分辨率。所有的输入设置成相同的模拟量输入范围和格式。表A-14所示为如何选择单/双极性(开关6)、增益(开关4和5)和衰减(开关1、2和3)。下表中,ON为接通,OFF为断开。
单极性
SW1 SW2 SW3 SW4 SW5 SW6
ON OFF OFF ON OFF ON 0到50mV 12.5μV
OFF ON OFF ON OFF ON 0到100mV 25μV
ON OFF OFF OFF ON ON 0到500mV 125uA
OFF ON OFF OFF ON ON 0到1V 250μV
ON OFF OFF OFF OFF ON 0到5V 1.25mV
ON OFF OFF OFF OFF ON 0到20mA 5μA
OFF ON OFF OFF OFF ON 0到10V 2.5mV
双极性
SW1 SW2 SW3 SW4 SW5 SW6
ON OFF OFF ON OFF OFF ±25mV 12.5μV
OFF ON OFF ON OFF OFF ±50mV 25μV
OFF OFF ON ON OFF OFF ±100mV 50μV
ON OFF OFF OFF ON OFF ±250mV 125μV
OFF ON OFF OFF ON OFF ±500 250μV
OFF OFF ON OFF ON OFF ±1V 500μV
ON OFF OFF OFF OFF OFF ±2.5V 1.25mV
OFF ON OFF OFF OFF OFF ±5V 2.5mV
OFF OFF ON OFF OFF OFF ±10V 5mV
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