主站和从站间的通信实时性好。
It can communicate efficiently between the main station and sub stations.
采用CAN总线网络通信模块SJA1000实现监控主站与底层智能仪表的连接，而仪表作为从站放置在现场。
The connection between the host and the slave intellectual meters is the CAN field bus net communication block SJA1000, and the meters as slave are placed on the industry spot.
PROFIBUS DP是一种多主从总线，采用主站间按令牌方式、从站和主站间按主从方式进行数据通信的工作方式。
PROFIBUS DP is a kind of multi master-slave station structure bus, and the communication between the masters is Token way, and subordination between the master and slaves.
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