A.MPI B.MODBUS C.PROFIBUS D.工業(yè)以太網(wǎng)
A.MOD BUS B.I/O BUS C.COMM BUS D.TRIBUS
A.POWER/ACTIVE燈是否亮 B.ERROR燈是否亮 C.PORT1燈是否亮 D.PORT2燈是否亮