6ES7288-3AM03-0AA0 SIMATIC S7-200 SMART, 模拟 IO SM AM06,2AI1AO, 0..10V,0..5V,04..20mA,+-5V, +-2.5V,12 Bit 分辨率 或 4...20mA,+-10V, 11 Bit 分辨率