边缘服务器

简介

As part of a scalable EcoStruxure Building Management System (BMS), Edge Server provides key functionality, such as control logic, trend logging, and alarm supervision, and supports communication and connectivity to IP based field buses. The distributed intelligence of the EcoStruxure BMS helps ensure fault tolerance against detected faults and provides a fully featured user interface through WorkStation and WebStation.

Edge Server has the same role in an EcoStruxure BMS as the automation server, such as SpaceLogic AS-P, but is software only using modern deployment and orchestration technologies.

特点

Edge Server is a powerful software component for customers who prefer use of container technologies for hosting software applications. In a small installation with IP based field controllers, Edge Server acts as a standalone server. In medium and large installations, functionality is distributed over multiple Edge Server instances that communicate over TCP/IP with Enterprise Server as the Operational Technology (OT) orchestrator.

边缘服务器具有以下功能：

• 通信枢纽

• 容器

• 通过强大的系统实现的身份验证和权限

• WorkStation/WebStation 界面

• 原生 BTL 认证 BACnet 支持

• BACnet/SC 节点、集线器或路由器

• 原生 OPC UA Client 支持

• 原生 Modbus 支持

• 基于 Web Services 支持的开放标准

• EcoStruxure Web Services 支持

• MQTT IoT 协议支持

• 外部日志存储选项

• AVEVA PI System 支持

• 仪表管理

• 规范化和签名

• 受监管行业的合规性

• 报告

• 文本和基于图形的编程工具

• I/O 扩展选项

• 基于 TCP/IP 通信协议套件的 IT 友好网络

• TLS 支持

Capable of coordinating traffic from above and below its location, Edge Server can deliver data directly to you or to other servers throughout the site. Edge Server can run multiple control programs, manage alarms and users, handle scheduling and logging, and communicate using a variety of protocols. Because of this, most parts of the system function autonomously and continue to run as a whole even if communication is interrupted or individual EcoStruxure BMS servers or devices go offline.

Edge Server can be seen as a software-only version of SpaceLogic AS-P, enabling very fast and more secure deployment, a high level of resiliency, and ultra-fast disaster recovery. Edge Server can be deployed on operating systems with Linux container support and in large installations, and orchestration infrastructure such as Kubernetes can be used.

An EcoStruxure BMS provides a powerful permission system that is easy to manage, flexible, and adapts to all kinds of system sizes. The permission system provides a high standard of authentication. Authentication is done against the built-in user account management system or a SAML 2.0 identity provider. If used with Enterprise Server for Windows, authentication can be done against Windows Active Directory. The built-in account management system allows an administrator to establish password policies that meet stringent cybersecurity guidelines. In addition, multi-factor authentication (MFA) according to RFC 6238 is supported and enforceable. Applications such as Google Authenticator and Microsoft Authenticator can be used as part of the user authentication. When Windows Active Directory or SAML 2.0 authentication is used, the administration costs are lower because users do not have to be managed in multiple directories.

经由任何客户端进入的用户所获得的体验都是相似的，无论用户登录到哪个 EcoStruxure BMS 服务器。用户可以直接登录到边缘服务器，以设计、调试、监督和监控服务器以及服务器托管的基于 IP 的现场总线控制器。更多信息参见 WorkStation 和 WebStation 规格表。

EcoStruxure BMS 的基础之一是支持开放标准。Edge Server 可以与一些最流行的建筑标准进行本地通信：BACnet（包括 BACnet/SC）、OPC UA Client 和 Modbus。

边缘服务器可与 BACnet/IP 和 BACnet MS/TP 网络直接通信。边缘服务器被 BTL 列为 BACnet 楼宇控制器 (B-BC)，是最先进的 BACnet 设备配置文件。该功能提供访问施耐德电气和其他供应商提供的各种 BACnet 设备的能力。在 BACnet International 首页查看 BTL 产品目录了解 BTL 清单固件修订版本的最新详情。边缘服务器还可充当 BACnet 广播管理设备 (BBMD) 来促进横跨多个 IP 子网的 BACnet 系统。

Edge Server supports BACnet/SC applications as a BACnet/SC node, hub, and router. This allows Edge Server to be in BACnet/SC networks and support applications that connect BACnet/IP with BACnet/SC networks. A major benefit of BACnet/SC is that it allows more secure transport of BACnet traffic and information between BACnet/SC devices over private and public networks without the need for BBMDs, VLANs, and VPNs, because the BACnet/SC protocol uses WebSocket technology and TLS 1.3 encryption. In addition, BACnet/SC uses certificate management to help ensure only those devices authorized to be on a BACnet/SC network can operate on that network.

OPC UA Client functionality is natively supported in Enterprise Server and field servers, enabling powerful and high-capacity integration of devices or systems that have OPC UA Server capability. OPC Unified Architecture (OPC UA) is a standard originating from industrial automation and process control that provides methods intended to provide improved security, performance, and engineering efficiency. With OPC UA Client support, the EcoStruxure BMS software can monitor and control a wide variety of devices or systems, from Schneider Electric as well as from other companies.

Edge Server natively integrates Modbus TCP client and server configurations. This allows full access to third-party products and the range of Schneider Electric products that communicate on the Modbus protocol, such as power meters, UPS, circuit breakers, and lighting controllers.

Modbus device types are pre-configured Modbus applications for quick and easy Modbus device integration in EcoStruxure BMS solutions.

边缘服务器支持基于开放标准（比如 SOAP 和 REST）的 Web 服务的使用，以消耗数据到 EcoStruxure BMS 中。在 Web 上使用输入的第三方数据（温度预测、能源成本）来确定站点模式、日程安排和编程。

EcoStruxure Web Services, Schneider Electric’s Web Services standard, is natively supported in the EcoStruxure BMS servers. EcoStruxure Web Services offers extra features between compliant systems whether within Schneider Electric or other authorized systems. These features include system directory browsing, read/write of current values, alarm receipt and acknowledgement, and historical trend log data. EcoStruxure Web Services requires user name and password to log on to the system.

The Enterprise Server and field servers support MQTT as an option for publishing data to, and receiving updates from, other systems. MQTT is a messaging transport protocol that with its small footprint, light bandwidth utilization, and simplicity, is ideal for M2M and IoT communication. The MQTT capability supports communication with any MQTT broker, for example, Amazon, Microsoft, Google or IBM.

EcoStruxure BMS servers can be configured to automatically store all historical data, trend log data, event log and audit trail data, in an external database. If data needs to be available for longer periods of time, an external log storage can be incorporated into the EcoStruxure BMS without the need for extensive engineering work. The supported databases are TimescaleDB, which is built on PostgreSQL, and Microsoft SQL Server. The data in the external log storage is available natively to the viewers built into the EcoStruxure BMS clients and to the built-in reporting functionality.

You can use the powerful Log Processor functionality for custom processing of trend data for viewing in charts, dashboards and for inclusion in reports. The Log Processor enables advanced calculations on one or multiple trend logs and point values.

Examples of advanced calculations:

• Energy usage normalization

• Virtual submeters and summaries

• Calculation of Mean Kinetic Temperature

• Unit conversions

• Average, maximum, and mini m um over custom periods

The output of the Log Processor can be saved in the database, including the External Log Storage or calculated automatically on demand.

Selected trend logs and the event log can be sent to AVEVA PI System directly without the need for intermediate storage or specialized PI System connectors. The EcoStruxure BMS server can also be the front-end client to AVEVA PI System and obtain data from the PI System that can be included in reports, graphics, and dashboards.

With the meter management functionality, EcoStruxure Building Operation offers improved methods to ensure data is accurate and meter changes are automatically detected. In addition, purpose-built functions enable easier handling of the following concepts:

• Aggregations

• Virtual metering

• Apportioned metering

• Unit conversions

Meter hierarchies enable powerful visualization of sub-meter structures or categorizations. A web-based editor with intelligent help functions enables efficient construction of meter hierarchies.

The normalization functions help with benchmarking, and the signature function enables automation and/or alerting when resource usage is too high or low. This enables early detection of faulty equipment and misused building functions, resulting in energy savings and higher occupant satisfaction.

The system includes easy-to-use tools for regression analysis and powerful methods for time-period classification, that is, differentiation of workdays versus holidays.

Using the built-in security features within the EcoStruxure BMS software, you can comply with 21 CFR Part 11 and other Life Sciences regulations, restricting access to authorized and qualified individuals and with full audit trail. In addition, the built-in access and security settings can be enhanced by applying further restrictions and limit access by time-of-day or geographic location.

The change control features extend the basic activity logging provided by the EcoStruxure BMS software by enhancing the functionality of the standard log, enabling efficient and fully configurable change control with the following features:

• Single or dual electronic signature application

• Change control that can be restricted only to specific objects in the system

• Change control that can easily be applied to all objects

• Every associated action is logged with the parameter that was changed

• Before and after parameter values including meta data

For each signature event, the change control signatures contain:

• The unique identifier of the person executing the signature

• The full name of the user who performed the action

• The geographical date and time stamp

• The meaning of the signature, such as approval, review, responsibility, and authorship

The EcoStruxure BMS servers provide built-in functionality for basic reporting that can deliver reports in any text format and XLSX, without any dependencies to other external software. Reports for XLSX can be enriched by using advanced functionality such as formulas, conditional formatting, charts and sparklines.

Reports can be generated on schedule, on an alarm event or other custom conditions, and you can get the output delivered via email or written to file.

For applications that require remote I/O resources, the SpaceLogic IP-IO modules provide a versatile mix of I/O points for any application. For more information, see the SpaceLogic IP-IO Specification Sheet.

Unique to the industry, the EcoStruxure BMS servers have both Script and Function Block programming options. This flexibility helps assure that a suitable programming method can be selected for the application.

The EcoStruxure BMS servers communicate using the networking standards. This makes installations easy, management simple, and transactions more secure.

• IP 寻址

• TCP 通信

• DNS，用于简捷地查找地址

• HTTP/HTTPS，用于通过防火墙接入互联网，实现远程监控

• SMTP/SMTPS 支持基于 SSL/TLS 的身份验证，可发送时间表或报警触发的电子邮件讯息

• SNMP，用于网络监测和指定网络管理工具中的应用程序报警接收

• WebSocket Secure (WSS) 和 TLS 1.3 加密（BACnet/SC 应用程序）

Communication between clients and the EcoStruxure BMS servers , and between EcoStruxure BMS servers, can be encrypted using Transport Layer Security (TLS ). The servers are delivered with a default self-signed certificate. Commercial Certification Authority (CA) server certificates are supported to lower the risk of malicious information technology attacks. Use of encrypted communication can be enforced for both WorkStation and WebStation access.

软件许可模式

EcoStruxure BMS software version 7.0 offers a simplified and centralized licensing model which allows for one-time, single-step activation of a system license deployed at the top level server of the system, thus removing the need for license engineering on each server in the system. This provides considerable time savings during the initial commissioning as well as during any future upgrade of the system.

System capabilities are available in a three-tier model: Essential, Advanced, and Advanced Plus. Select the tier that matches your business needs, and everything will then be bundled into the centralized system license and inherited across all servers in your system architecture, including Enterprise Central, Enterprise Server, and field servers.

The centralized licensing model combined with the three-tier capability model provides a uniquely easy-to-manage system throughout the lifecycle. Among other benefits, this gives the ability to remotely manage the capability tier as business needs evolve and to facilitate expansion as the system grows with added servers and connected devices.

Configuration of software licenses is done through EcoStruxure Power & Building Software Companion, accessible by EcoXpert™ partners and Schneider Electric representatives. It provides the ability to select architecture and tier options as well as manage license evolutions throughout the lifecycle of the system.

For more information on the three-tier system capabilities, see the Schneider Electric website, www.se.com .