SM812 功能强大的安全CPU模块

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SM812 功能强大的安全CPU模块

SM812是一款功能强大的安全CPU模块，特别适用于工业自动化和控制系统中的安全相关应用。这款模块支持热插拔，并且具备冗余系统的功能，确保在系统出现故障或维护时能够无缝切换，保证系统的连续性和稳定性。

SM812的主要功能之一是在非SIL和SIL1-2操作期间提供控制器的智能监控。它还可以与PM867一起形成适用于SIL3应用的1oo2多样化结构，满足更高层次的安全要求。这种结构提供了高度的可用性和可靠性，特别适用于需要严格保证系统安全性的应用场合。

此外，SM812具有专用同步链路，可以同步主用和冗余SM，实现热插拔和在线升级。这种设计使得系统维护变得更加便捷，减少了因维护而导致的停机时间。在热插入和在线升级情况下，需要在冗余设置中的两个SM812之间复制数据，以确保数据的完整性和一致性。

SM812还具有一个具有三个数字输入和两个数字输出的连接器，可用于安全相关的数字I/O（而非过程I/O）。这使得SM812能够直接与安全传感器和执行器进行连接，实现快速且准确的数据传输和控制。

总的来说，SM812是一款高性能、高可靠性的安全CPU模块，适用于各种工业自动化和控制系统中的安全相关应用。它的热插拔、冗余系统、同步链路以及专用数字I/O连接器等功能，使得它成为实现高可用性、高安全性控制系统的理想选择。

SM812 功能强大的安全CPU模块

The SM812 is a powerful secure CPU module that is particularly suitable for safety-related applications in industrial automation and control systems. This module supports hot swap and has the function of redundant system to ensure seamless switching in case of system failure or maintenance, ensuring system continuity and stability.

One of the main functions of the SM812 is to provide intelligent monitoring of the controller during non-SIL and SIL1-2 operations. It can also be combined with PM867 to form a 1oo2 diversified structure for SIL3 applications, meeting higher levels of security requirements. This structure provides a high degree of availability and reliability, especially for applications where strict system security is required.

In addition, the SM812 has a dedicated synchronization link that can synchronize the active and redundant SM for hot swap and online upgrades. This design makes system maintenance easier and reduces downtime caused by maintenance. In the case of hot insert and online upgrade, data needs to be replicated between the two SM812s in a redundant setting to ensure data integrity and consistency.

The SM812 also has a connector with three digital inputs and two digital outputs that can be used for safety-related digital I/O (as opposed to process I/O). This enables the SM812 to connect directly to security sensors and actuators for fast and accurate data transfer and control.

Overall, the SM812 is a high-performance, highly reliable and secure CPU module for safety-related applications in a variety of industrial automation and control systems. Its hot-swappable, redundant system, synchronous link and dedicated digital I/O connectors make it an ideal choice for high availability and high security control systems.