描述
节点总线的传送介质一般为同轴电缆,有的采用令牌信号传送方式,有的采用带冲突检测的确良多路送取争用总线信号传送方式。不论采用哪种方式,当总线的干线任一处中断时,都会导致该总线上所有站及其子设备通讯故障
NEW SIEMENS 6ES5 525-3UA21 MODULE 6ES55253UA21
NEW SECO D-106745 LH 3″ ZPAX TOOL
CINCINNATI MILACRON 3-531-3288A CONTROLLER 35313288A
WESTINGHOUSE KDB3400V CIRCUIT BREAKER 400 AMP
NEW ALLEN BRADLEY 809S-AB100A1 CURRENT RELAY
CINCINATTI MILACRON 3-521-4162A BOARD 35214162A