8405-020 主机通信的指令 提供用于主机通信的冗余网络

基本细节:

8405-020 主机通信的指令 提供用于主机通信的冗余网络

8405-020来自主机通信的指令。C70R CPU 上提供了用于主机通信的冗余网络。两个网络端口在 Leadcontroller 上都处于持续活动状态。预留 CPU 上的网络端口不可用于外部通信支持冗余以太网通信，并自动传输通信。否则，C70R 网络端口可以在非冗余模式下使用，其中只有一个使用通信端口。
可配置模块在输入配置方面具有高度的多功能性，可满足各种测量要求。该模块可以完全配置为 4-20 mA 模拟输入，使用户能够灵活地选择最适合其特定应用的输入类型。
在 34 个可用通道中，前 24 个通道可单独配置为 4-20 mA 输入或热电偶输入。这种多功能性使用户能够使模块适应各种监控场景。例如，他们可以选择将输入用于一般模拟测量，或者在需要精确温度测量时选择热电偶输入。
同样，最后10个通道可以配置为-20 mA输入或RTD输入。此功能使用户能够使用具有高精度和稳定性的RTD测量温度，或将输入用于其他类型的模拟信号。
为确保与中央处理器 （CPU） 板的可靠连接和通信，可配置 34 通道 HDVIM 模块利用 VME 总线接口。这种广泛使用的接口标准允许模块和 CPU 板之间无缝数据交换，从而能够顺利集成到整个控制系统中。
该模块的设计具有隔离功能，可提高其安全性和可靠性。前 12 个热电偶/4-20 mA 输入被隔离为一组，这意味着它们与其他输入和控制公共端电气隔离。这种隔离可防止输入组之间的任何潜在干扰或串扰，确保为关键温度测量采集准确、无噪声的数据。

8405-020

8405-020 Instructions from host communication. A redundant network for host communication is provided on the C70R CPU. Both network ports are continuously active on Leadcontroller. The network port on the reserved CPU cannot be used for external communication. Redundant Ethernet communication and automatic transmission communication are supported. Otherwise, the C70R network port can be used in non-redundant mode, only one of which uses the communication port.
Configurable modules offer a high degree of versatility in input configuration to meet a wide range of measurement requirements. The module can be fully configured for 4-20 mA analog inputs, giving users the flexibility to choose the type of input that best suits their specific application.
Of the 34 available channels, the first 24 can be configured individually for 4-20 mA inputs or thermocouple inputs. This versatility enables users to adapt the module to a variety of monitoring scenarios. For example, they can choose to use the input for general analog measurements or thermocouple inputs when precise temperature measurements are required.
Similarly, the last 10 channels can be configured as -20 mA inputs or RTD inputs. This feature enables users to measure temperature using RTDS with high accuracy and stability, or to use the input for other types of analog signals.
To ensure reliable connection and communication with the central processing unit (CPU) board, a 34-channel HDVIM module can be configured using the VME bus interface. This widely used interface standard allows for seamless data exchange between modules and CPU boards, enabling smooth integration into the entire control system.
The module is designed with isolation to improve its safety and reliability. The first 12 thermocouple /4-20 mA inputs are isolated into a group, which means they are electrically isolated from other inputs and control common ends. This isolation prevents any potential interference or crosstalk between input groups, ensuring accurate, noise-free data is collected for critical temperature measurements.

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