S7-1500輸入模塊訂貨號(hào): ?6ES7521-1BH00-0AB0 ?16路輸入模塊 DI ?16x24VDC HF ? 輸入延時(shí):0.05 ms 到 20 ms ?6ES7521-1BL00-0AB0 ?32路輸入模塊 DI ?32x24VDC HF ? 輸入延時(shí):0.05 ms 到 20 ms ?6ES7521-1BH50-0AA0 ?16路輸入模塊 DI ?16x24VDC SRC BA ? 輸入延時(shí):3 ms? ?6ES7521-1FH00-0AA0 ?16路輸入模塊 DI ?16x230VAC BA ? ? 輸入延時(shí):25 ms?