ããå°è¾¾PLCä¸çµèç¨RS485ææ ·é讯ç解å³åæ³
çµèä¸PLC-RS485è¿æ¥è¦ç¨RS232转485转æ¢å¨ï¼å 为ä¸è¬çµè没æRS485é讯å£åªææäºå·¥æ§æºææRS485é讯å£ã
ãã请åèE820A USB转RS485/RS422æ¥å£ç转æ¥å¨å¾