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System and method for stabilizing a BACnet MSTP network when failures occur
System and method for stabilizing a BACnet MSTP network when failures occur
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机译:发生故障时稳定BACnet MSTP网络的系统和方法
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摘要
A system and method is provided for stabilizing a BACnet MSTP network when failures occur. The system may include at least one processor in an MSTP device configured via executable instructions included in at least one memory to communicate data expecting reply (DER) messages for field devices (e.g., HVAC, lighting, shading) onto an MSTP network for receipt by at least one IP device on an Ethernet network connected to the MSTP network via a BACnet IP/MSTP router. The processor may be configured to determine when the at least one IP device sent a DER message has become a non-communicative device. Also the processor may be configured to send a Poll for Master (PFM) message to the determined non-communicative device. In addition, the processor may be configured to drop further DER messages to the determined non-communicative device responsive to an absence of receipt of a response to the PFM message.
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机译:提供了一种用于在发生故障时稳定BACnet MSTP网络的系统和方法。该系统可以包括MSTP设备中的至少一个处理器,该MSTP设备通过包括在至少一个存储器中的可执行指令进行配置,以将针对现场设备的数据期望答复(DER)消息(例如,HVAC,照明,阴影)传送到MSTP网络上,以供接收以太网上的至少一个IP设备通过BACnet IP / MSTP路由器连接到MSTP网络。处理器可以被配置为确定至少一个发送了DER消息的IP设备何时成为非通信设备。处理器也可以被配置为向所确定的非通信设备发送主轮询(PFM)消息。另外,处理器可以被配置为响应于缺少对PFM消息的响应的接收而将其他DER消息丢弃到所确定的非通信设备。
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