ISO/IEC 14776-224:2019（E）定义了小型计算机系统接口（SCSI）光纤通道协议（FCP）。本标准定义了如何使用光纤通道服务和定义的信息单元（IUs）来执行SCSI体系结构模型-5（SAM-5）定义的服务。第四版包括对第三版（ISO/IEC 14776-223:2008）的补充和澄清，删除了目前包含在其他标准中的信息，并描述了光纤通道协议的其他错误恢复功能。

ISO/IEC 14776-224:2019(E) defines the Small computer system interface (SCSI) Fibre Channel Protocol (FCP). This standard defines how the Fibre Channel services and the defined Information Units (IUs) are used to perform the services defined by the SCSI Architecture Model - 5 (SAM-5). This fourth version includes additions and clarifications to the third version (ISO/IEC 14776-223:2008), removes information that is now contained in other standards, and describes additional error recovery capabilities for the Fibre Channel Protocol.