UC知道高人帮我翻译一段（非诚勿扰）
来源：百度知道 编辑：UC知道 时间：2024/06/03 05:18:35
How it was said, if embedded systems not
communicate theirself, the PLC must communicates
with embedded system by embedded system to
receives and sends data. Question of this
communication is monitoring of state bus. This
question have two main answer. First resolution,
embedded system listen bus and state
„Communication is OK“ is state, when the
embedded system listens some communication.
Second resolution, each embedded system must
communicates with the PLC to time-out. If the PLC
not communicates with the embedded system on
time, the embedded system sets information fault
and makes reaction to losing communication. The
PLC makes similarly things. If embedded systems
communicate theirself, control of bus is more
difficulty because each device needs connect to the
bus. If profibus, ethernet are used, problem is
solved, because these busses have standart protocol.
If RS485 is used, it m
communicate theirself, the PLC must communicates
with embedded system by embedded system to
receives and sends data. Question of this
communication is monitoring of state bus. This
question have two main answer. First resolution,
embedded system listen bus and state
„Communication is OK“ is state, when the
embedded system listens some communication.
Second resolution, each embedded system must
communicates with the PLC to time-out. If the PLC
not communicates with the embedded system on
time, the embedded system sets information fault
and makes reaction to losing communication. The
PLC makes similarly things. If embedded systems
communicate theirself, control of bus is more
difficulty because each device needs connect to the
bus. If profibus, ethernet are used, problem is
solved, because these busses have standart protocol.
If RS485 is used, it m
它是怎么说，如果不是嵌入式系统
沟通theirself ，必须进行通信的PLC
嵌入式系统嵌入式系统
接收和发送数据。这个问题
沟通是监督国家巴士。这个
问题有两个主要的答案。第一项决议，
嵌入式系统收听巴士和国家
“沟通是行”是国家的，当
嵌入式系统听一些沟通。
第二项决议，必须每一个嵌入式系统
通信与PLC在超时。如果公司
没有通讯与嵌入式系统
当时，嵌入式系统集信息故障
使反应失去沟通。那个
公司生产同样的东西。如果嵌入式系统
沟通theirself ，控制总线更
困难，因为每一个设备需要连接到
巴士。如果PROFIBUS现场总线，以太网的使用，问题是
解决，因为这些巴士有旗议定书。
如果使用485 ，必须使用中央控制
总线，从而使认证的通信。
算法将给予认证
依赖于设备的要求，使用公共汽车。
例如，公司已验证两个时间往往
比其他装置。周期给予认证
必须包含时间，刷新信息
装置连接到总线。
缺点是失去通信时
一些设备进入僵局后，
身份验证和设备不返回控制总线
中央控制总线。其中一个方法，可以使用
超时。这意味着用有限的时间，当一个设备
必须返回控制总线中央控制总线
（建行） 。如果设备不返回控制总线，
建行发送到所有设备取消分组和比
商业罪案调查科refreshs信息设备。在案件
商业罪案调查科找到错误的设备，建行信息发送给
临立会和其他嵌入式系统。经过
令人耳目一新的信息建设银行提供认证
一些设备。 PLC与嵌入式系统必须
检测状态巴士theirself太多。