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 ....................................................................................................................................................... 7
3-4.4 Trigger Type .............................................................................................................................................. 7
3-4.5 Connection size .......................................................................................................................................... 7
3-4.6 Connection request time-out ...................................................................................................................... 7
3-4.7 Connection path ......................................................................................................................................... 7
3-4.7.1 Network connection ID .......................................................................................................................... 8
3-4.8 Forward_open for CIP transport class 2 and class 3 connections ............................................................ 11
3-4.9 Forward_open for CIP transport class 0 and class 1 connections ............................................................ 11
3-4.9.1 General ................................................................................................................................................. 11
3-4.9.2 Mapping connections to IP multicast addresses ................................................................................... 11
3-4.9.3 Completing the multicast connection (informative) ............................................................................. 12
3-5 CIP transport class 0 and class 1 connected data ............................................................................................. 12
3-5.1 UDP datagrams ........................................................................................................................................ 12
3-5.2 CIP transport class 0 and class 1 packet ordering .................................................................................... 12
3-5.3 Screening incoming connected data ......................................................................................................... 13
3-6 IP multicast scoping and address allocation..................................................................................................... 13
3-6.1 Background (informative) ........................................................................................................................ 13
3-6.1.1 General ................................................................................................................................................. 13
3-6.1.2 Current scoping practices ..................................................................................................................... 14
3-6.1.3 Current address allocation practices..................................................................................................... 14
3-6.1.4 Evolving Internet standards.................................................................................................................. 14
3-6.2 Interim scoping strategy ........................................................................................................................... 15
3-6.3 Interim allocation strategy........................................................................................................................ 15
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2014-06-14
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mysysy2015-08-17格式有些乱了。非常感谢.
