6ES7331-7KF02-0AB0 模拟量输入模块(8路,多种信号)SIMATIC S7-300, ANALOG INPUTSM 331, OPTICALLY ISOLATED,8AI, RESOLUTION 9/12/14 BITS,U/I/THERMOCOUPLE/RESISTANCEINTERRUPT, DIAGNOSTICS; 1X20PINREMOVE/INSERT W. BACKPLANE BUS