E3EFa HENF452750R1 远程终端单元可编程逻辑控制器的数量不受限制,但网络延迟取决于网络上的远程终端单元/可编程逻辑控制器的数量。大多数串行系统需要某种流量计算/审查,以确定有多少站点可以在给定的时间框架内进行投票和响应。大多数网络管理员和供应商都有工具可以帮助计算系统延迟时间、吞吐量和扫描率。数据音频至少提供两种类型的一般经验使用规则。系统设计人员可能需要与系统编程人员一起工作,以了解数据结构和应用程序所需的吞吐率。
E3EFa-HENF452750R1
这也可能涉及过程控制/系统工程师来了解什么是总体系统性能标准。数据技术服务的经验表明,如果不处理这些项目,无论是串行通信还是局域网,系统性能都不是最佳的 RDS、PLCS、简易爆炸装置、终端服务器、仪表和其他工艺控制设备几乎任何使用IP作为网络层的设备都可以与O-IP一起使用。每一种类型的设备都有一个通信概要文件,就消息传递的大小、延迟控制、回复消息的大小和临时消息传递而言,都需要加以考虑。
E3EFa-HENF452750R1
网络动态控制是未来数据采集工作的一部分。如果该系统是一个C类网络,那么最多可能有254个设备在段上。但是,拥有设备计数能力与拥有吞吐能力是不一样的。如果所有的消息传递都是小的和短的254个设备可以很容易地支持。它真正的意义在于:需要监视的点越多系统对它们进行调查的时间就越长。网络延迟将对数据收集例程造成更长的扫描时间。
E3EFa-HENF452750R1
The number of programmable logic controllers for E3EFa HENF452750R1 remote terminal units is not limited, but network latency depends on the number of remote terminal units/programmable logic controllers on the network. Most serial systems require some kind of traffic calculation/review to determine how many sites can vote and respond within a given time frame. Most network administrators and vendors have tools to help calculate system latency, throughput, and scan rate. Data audio provides at least two types of general experiential usage rules. System designers may need to work with system programmers to understand the data structure and the required throughput of the application.
E3EFa-HENF452750R1
This may also involve process control/system engineers to understand what overall system performance standards are. Experience in data technology services has shown that without handling these projects, whether it is serial communication or local area networks, system performance is not optimal for RDS, PLCS, improvised explosive devices, terminal servers, instruments, and other process control equipment. Almost any device that uses IP as the network layer can be used with O-IP. Each type of device has a communication profile that needs to be considered in terms of message size, delay control, reply message size, and temporary message delivery.
E3EFa-HENF452750R1
Network dynamic control is a part of future data collection work. If the system is a Class C network, there may be a maximum of 254 devices on the segment. However, having device counting capability is different from having throughput capability. If all messaging is small and short, 254 devices can easily support it. Its true significance lies in the fact that the more points that need to be monitored, the longer the system will investigate them. Network latency will cause longer scan times for data collection routines.
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