D500-DOM-1616R

发布时间:2017-02-10

D500-DOM-1616R

D500-DOM-1616R

D500-DOM-1616R

3)网络的解藕配置。该措施不仅有效隔离了各层数据流量,提高通讯实时性,而且也
  隔离通讯故障,将故障的影响尽可能地限制在小范围内,从而提高整个通讯系统的可靠性。
  4)网络故障下的自动无扰切换。所有DCS通讯系统都具有在线监测功能,一旦工作通讯网络发生故障,系统将自动切换到处于热备状态的冗余网络上,保证整个系统的连续无扰运行,在有些系统中,冗余网络之间周期性地切换,以防止热备网络出现错误时未被及时发现,从而失去热备作用。
  5)数据完整性校验和自动重发功能。在大多数系统中,在所有数据报文的发送前和接收后都进行数据完整性(如CRC方式),一旦发生错误,将自动引发数据重发功能。
  6)故障站的自动脱离和旁路。任何一个节点的故障都不会影响整个网络的通讯畅通,该故障节点应该自动脱离和旁路。一旦故障排除,该节点能够自动恢复整个网络的数据通讯。

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