IEC 61784-3（所有部分）的本部分规定了安全通信层（服务和 协议）基于IEC 61784-1、IEC 61784-2（CP 3/1、CP 3/2、CP 3/4、CP 3/5和 CP 3/6）和IEC 61158类型3和10。它确定了功能安全的原则 IEC 61784-3中定义的与该安全通信层相关的通信。 该安全通信层仅适用于安全设备。注1:不包括电气安全和本质安全方面。电气安全与触电等危险有关。本质安全与潜在爆炸性环境相关的危险有关。 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 61784-3 (all parts) specifies a safety communication layer (services and protocol) based on CPF 3 of IEC 61784-1, IEC 61784-2 (CP 3/1, CP 3/2, CP 3/4, CP 3/5 and CP 3/6) and IEC 61158 Types 3 and 10. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This safety communication layer is intended for implementation in safety devices only.NOTE 1It does not cover electrical safety and intrinsic safety aspects. Electrical safety relates to hazards such as electrical shock. Intrinsic safety relates to hazards associated with potentially explosive atmospheres.All current amendments available at time of purchase are included with the purchase of this document.