CIP通讯协议规范

Contents 3-1 Introduction........................................................................................................................................................ 3 3-2 Scope.................................................................................................................................................................. 3 3-3 CIP packets over TCP/IP ................................................................................................................................... 3 3-3.1 Unconnected messages .............................................................................................................................. 3 3-3.2 CIP transport class 0 and class 1 connections ............................................................................................ 5 3-3.2.1 CIP transport class 0 and class 1 packets ............................................................................................... 5 3-3.2.2 Behavior of class 0 and class 1 connections (informative) .................................................................... 5 3-3.3 CIP Transport class 2 and class 3 connections ........................................................................................... 6 3-3.4 CIP Transport classes 4 through 6 ............................................................................................................. 6 3-4 Connection Manager object ............................................................................................................................... 6 3-4.1 Connection parameters............................................................................................................................... 6 3-4.2 Connection type ......................................................................................................................................... 7 3-4.3 Priority ...................................