F1101 高可用性，灵活组态SIL3系统，为要求高安全等级和连续操作的过程工业设计，HIMA的PES主要包括H41q和H51q两个系列，它们基于同样的硬件和软件，是第三代经生产实践验证的HIMA PES系统。它能够利用个人计算机进行灵活的用户组态、监测和事件记录，其出色的性能为生产控制提供安全的控制保障。

F1101 High Availability, Flexible Configuration SIL3 System, Designed for the process industry requiring high levels of safety and continuous operation, HIMA's PES mainly consists of two series, H41q and H51q, which are based on the same hardware and software, and are the third generation of production-proven HIMA PES systems. It is capable of flexible user configuration, monitoring and event logging using a personal computer, and its outstanding performance provides safe control for production control.

HIMA的H41q/H51q系统为CPU四重化结构（QMR-Quadruple Modular Redundant），即系统的中央控制单元共有四个微处理器，每二个微处理器集成在一块CU模件上，再由两块同样的CU模件构成中央控制单元。一块CU模件即构成1oo2D结构，HIMA的1oo2D结构产品就可以满足AK6/SIL3的安全标准。为了向用户提供可利用性，采用双1oo2D结构，即2oo4D结构。在冗余结构的情况下，高速双重RAM接口（DPR）使两个中央单元通讯，从而解决了无故障修复时间限制的难题。其容错功能使系统中的任何一个部件发生故障，均不影响系统的正常运行。

HIMA's H41q/H51q system for the CPU Quadruple Redundant structure (QMR-Quadruple Modular Redundant), that is, the system's central control unit has four microprocessors, every two microprocessors integrated in a CU module, and then by the same two CU modules constitute the central control unit. One CU module constitutes a 1oo2D structure, and HIMA's 1oo2D structure products can meet the AK6/SIL3 safety standard. In order to provide the user with availability, a dual 1oo2D structure, i.e. a 2oo4D structure, is used. In the case of the redundant structure, a high-speed dual RAM interface (DPR) enables the two central units to communicate, thus solving the problem of fault-free repair time limitations. Its fault-tolerant function enables the failure of any component in the system without affecting the normal operation of the system.

H41q系列是紧凑型系统，它主要由5单元高的19英寸机架构成。 中央机架容纳了所有部件, 包括中央单元、接口、通讯模件、电源和配电系统以及输入输出模件。H51q系列采用标准模块化结构，由5单元高的19英寸机架及***多16个4单元高的19英寸输入/输出子机架组成。中央机架包括中央单元、接口、通讯模件、监视和电源模件。

The H41q series is a compact system that consists primarily of a 5-unit high 19" rack. The central rack houses all components, including the central unit, interfaces, communication modules, power supply and distribution system, and input and output modules.The H51q series has a standard modular structure consisting of a 5-unit high 19-inch rack and **** up to 16 4-unit high 19-inch input/output subracks. The central rack includes the central unit, interfaces, communication modules, monitoring and power supply modules.