6ES7331-1KF02-0AB0 模擬量輸入模塊(8路, 13位精度)SIMATIC S7-300, ANALOG INPUTSM 331, OPTICALLY ISOLATED,8 AI, 13 BIT RESOLUTION,U/I/RESISTANCE/PT100,NI100, NI1000, LG-NI1000,PTC / KTY,66 MS MODULE UPDATE,1 X 40 PIN