西门子S7-200SMART控制器模块CPUCR40

高可用性自动化系统用于将发生生产故障的危险降到低程度。与生产故障所造成的损失相比，高可用性自动化系统的较高投资成本通常显得微不足道。生产故障的成本越高，就越值得使用一个高可用性系统。

容错型 SIMATIC PCS 7 自动化系统可以在其自己的系统组态中使用，或与标准和安全相关的自动化系统一起使用。可以按照设计原理对它们进行分类：

只带有一个 CPU 的单站

带有两个冗余 CPU 的冗余站

注：

SIPLUS extreme 产品是基于西门子工业标准产品的。此处列出的内容来自相关的标准产品。 添加了特定 SIPLUS extreme 信息

1) ISA-S71.04 严重级别 GX：长期负载： SO2 < 4.8 ppm; H2S < 9.9 ppm; Cl < 0.2 ppm; HCl < 0.66 ppm; HF < 0.12 ppm; NH < 49 ppm; O3 < 0.1 ppm; NOX < 5.2 ppm，限值（长 30 分钟/d）：SO2 < 17.8 ppm; H2S < 49.7 ppm; Cl < 1.0 ppm; HCl < 3.3 ppm; HF < 2.4 ppm; NH < 247 ppm; O3 < 1.0 ppm; NOX < 10.4 ppm

2) 在含有腐蚀性气体的环境中工作时，必须将提供的插头盖盖在未使用的接口上！

有关 SIPLUS 的技术文档，请参见：

//www./siplus-extreme

The AS 410H, which consists of two redundant, galvanically isolated subsystems, can be mounted on a UR2‑H compact rack with a split backplane bus or on two separate racks (UR1 or UR2). The configuration in two racks has the advantage that the redundant subsystems are spatially separated (for example, by a fire-proof wall) and can be located far apart from each other. Depending on the sync modules used, distances from 10 m to 10 km are possible between the two subsystems. As a result of the electrical isolation, the system is also resistant to EMC interference.

Subsequent increase in performance

If the performance limit defined by the ordered system expansion card is reached during configuration, commissioning or operation, a subsequent increase in performance is possible by using an appropriate number of CPU 410 Expansion Packs 100 POs/500 POs. Hardware modifications are not necessary.

I/O connection via PROFIBUS DP

The distributed process I/O can be integrated into a PROFIBUS DP segment either directly or via a lower-level fieldbus (PROFIBUS PA or FOUNDATION Fieldbus H1).

Several PROFIBUS DP segments with distributed process I/Os can be operated on an AS 410H high-availability automation system. A PROFIBUS DP interface is integrated in each of the two CPUs 410‑5H Process Automation. Within the automation system, up to four more PROFIBUS DP interfaces can be configured for each redundant subsystem with additive SIPLUS NET CP 443‑5 PROFIBUS DP interfaces (6AG1443-5*).

With redundant PROFIBUS DP lines, the process I/Os can be connected to an AS 410H as follows:

SIPLUS ET 200M remote I/O stations with two SIPLUS IM 153‑2 High Feature interface modules on a special bus module

ET 200iSP remote I/Os stations with two ET 200iSP IM 152‑1 on a special terminal module

Field devices on the PROFIBUS PA via a PA link to two redundant SIPLUS ET 200M IM 153‑2 High Feature interface modules

Field devices on the FOUNDATION Fieldbus H1 via an FF link with two redundant IM 153-2 FF interface modules

Non-redundant PROFIBUS DP devices, e.g. SIPLUS ET 200S or ET 200pro remote I/O stations via Y‑Link

I/O connection via PROFINET IO

High-availability AS 410H automation systems can be connected to remote I/O stations, such as SIPLUS ET 200M or SIPLUS ET 200SP remote I/O stations, via PROFINET IO. Only the PROFINET interfaces integrated in the CPUs can be used for this on the automation system.

The maximum availability with minimum error reaction times is achieved by the AS 410H when used in conjunction with system redundancy of the I/O devices. System redundancy refers to a type of PROFINET IO communication in which each I/O device establishes a communication link to each of the two CPUs of an AS 410H over the topological network. Then, the failure of a CPU does not automatically lead to failure of the connected I/O devices.

PROFINET IO communication with system redundancy

Communication via the Industrial Ethernet (IE) plant bus

If the PROFINET interfaces integrated in the CPUs of the AS 410H are not used for PROFINET IO, they can then also be used for the connection to the Industrial Ethernet plant bus. Otherwise, the two subsystems of the AS 410H can be connected to the plant bus using one SIPLUS NET CP 443‑1 communication module (6AG1443-1*) each.

The plant bus can be implemented in the form of a ring structure, which can also be configured with redundant architecture if the availability requirements are high. When there are two redundant rings it makes sense to configure two IE interface/communication modules in each case and to distribute their connections between the two rings (4-way connection). Double faults such as failure of the switch on ring 1 with ltaneous interruption of the bus cable on ring 2 can thus be tolerated.

Runtime licenses

With SIMATIC PCS 7 Industry Library Runtime and the SIMATIC PCS 7 AS Runtime license, the automation systems are equipped with 100 process objects (PO) on delivery. The number of process objects can be extended by additional Runtime licenses for 100, 1 000 or 10 000 POs. The process objects of additional Runtime licenses can be added to process objects which already exist. The number and type (e.g. 100 or 1000) of additional Runtime licenses are irrelevant.

Y-Link

总线耦合器，用于在冗余 PROFIBUS DP 主站系统与单通道 PROFIBUS DP 主站系统之间进行转换

用于将只有一个 PROFIBUS DP 接口的设备与冗余 PROFIBUS DP 主站系统相连

Y-Link 包括：

2 个 IM 153‑2 高性能接口模块

一个 Y 耦合器（包括 RS 485 中继器）

一个 BM IM157 (IM/IM) 总线模块，用于两个 IM 1532 高性能型模块

1 个 BM Y 型耦合器总线模块

驱动块支持对 Y 型链接器诊断的分析（因而也间接支持相连的 DP 标准从站）。