描述
信号在长线中传输会遇到三个问题:一是高速变化的信号在长线中传输时出现的波反射现象,二是具有信号延时,三是长线传输会遇到外界干扰。
ASEA Brown Boveri, ABB DSQC 123B with DSQC 130
ASEA Brown Boveri, ABB DSSR 115
ASEA Brown Boveri, ABB YYE 109 A
ASEA Brown Boveri, ABB YYE 109 A
SIMENS SINUMERIC 810G 6FX1121-4BA03 HARDWARE
Fanuc A16B-1210-0560 Power Unit, tested, warranty
GE FANUC MOTOR A06B-0310-B001 #7000 Model 2-OS, tested
GE FANUC MOTOR A06B-0310-B001 #7000 Model 2-OS