ABB DAPU100 3ASC25H2040控制板
如果将多个CI854/CI854A或其他配置设备连接到同一总线，则必须手动调整总线设置。但只有TTR需要调整。总TTR必须计算为连接到同一PROFIBUS的CI854/CI854A主设备的所有单独TTR的总和。必须为所有连接的CI854/CI854A主机手动配置生成的TTR。示例：您有三个CI854/CI854A主单元，其TTR时间分别为20.000、30.000和40.000，然后您必须手动配置所有三个单元的TTR时间90.000。如果一个独立的工具作为DPM2（DP Master Class 2）主设备直接连接到PROFIBUS进行非循环通信，则还必须考虑该主设备的TTR时间。否则，独立工具可能会出现通信问题。
If you connect several CI854/CI854A or
additional configuration devices to the same bus you have to adapt the bus settings
manually. But only the TTR has to be adapted. An overall TTR has to be calculated
as the sum of all individual TTR for the CI854/CI854A master units connected to
the same PROFIBUS. The resulting TTR has to be manually configured for all
connected CI854/CI854A master units.
Example: you have three CI854/CI854A master units having the automatically
calculated TTR times 20.000, 30.000 and 40.000, then you have to manually
configure the TTR time 90.000 for all three units.
If a standalone tool is directly connected to the PROFIBUS as DPM2 (DP Master
Class 2) master for some acyclic communication, then the TTR time of this
master also has to be taken into account. Otherwise the standalone tool might get
communication problems.
