IEC 62541的这一部分定义了OPC统一体系结构（OPC UA）服务。定义的服务是抽象远程过程调用（RPC）的集合 由OPC UAServers实现，由OPC UAClient调用。之间的所有互动 OPC UAClients和服务器Soccur通过这些服务。我们考虑了定义的服务 因为本文中没有定义具体的RPC实现机制 文件IEC 62541-6规定了支持的一个或多个具体映射 实施例如，IEC 62541-6中的一个映射是到XML Web服务。因为 本文档中描述的服务作为Web服务方法出现在 WSDL合同。 并非所有OPC UAServer都需要实现所有定义的服务。IEC 62541-7 定义指定需要实现哪些服务才能实现的权限 符合特定的配置文件。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This part of IEC 62541 defines the OPC Unified Architecture (OPC UA)Services. TheServicesdefined are the collection of abstract Remote Procedure Calls (RPC) that are implemented by OPC UAServersand called by OPC UAClients. All interactions between OPC UAClientsandServersoccur via theseServices. The definedServicesare considered abstract because no particular RPC mechanism for implementation is defined in this document. IEC 62541-6 specifies one or more concrete mappings supported for implementation. For example, one mapping in IEC 62541-6 is to XML Web Services. In that case theServicesdescribed in this document appear as the Web service methods in the WSDL contract. Not all OPC UAServerswill need to implement all of the defined Services. IEC 62541-7 defines theProfilesthat dictate which Services need to be implemented in order to be compliant with a particularProfile.All current amendments available at time of purchase are included with the purchase of this document.