1C31197G01产品特点
模拟量信号处理
在烟尘净化器中安装有压力检测装置，压力传感器将压力以电流信号传到PLC，PLC将数据规格化，检测滤腔实际内外压差，传送到触摸屏。由于压差值过高将影响净化效果，设置低将频繁执行反吹清灰动作，规定压差设定值范围为1000Pa-1500Pa。当到达设定值时，脉冲电磁阀执行清灰动作，设定数据由触摸屏负责输入，并限制数据范围。
净化器内同时安装有温度检测信号，用来保护滤筒，如果温度过设定值，则蜂鸣器发出报警。风机停止运行，温度设定过高起不到保护作用，温度设定太低会影响设备正常运行，所以这个值也需要限制设置范围，同样由触摸屏负责完成。
系统的模拟量输入信号主要是上述两种，都是将4-20mA的标准信号传入的PLC，1C31197G01将得到的信号值转换为内部数值0-32000
一压力变送器为例，其量程为1000-1500Pa，对应电流为4-20mA.按照大输入电流20mA,每毫安对应的A/D转换值为32000/20,当压力为0时，其A/D转换值为(32000/20)*4=6400,可以得出A/D转换值的范围为6400-32000.
1C31197G01
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1C31197G01参数规格
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