Cip Message Communications - Omron NX-series User Manual

CIP Message Communications

NX-series Communication Control Unit Built-in Function User's Manual (Z396)
8-1 Overview of the CIP Message Communications Service ......................... 8 - 2
8-1-1 Overview of the CIP Message Communications Service ............................. 8 - 2
8-1-2 Message Communications Service Specifications ....................................... 8 - 2
8-2 CIP Communication Server Function......................................................... 8 - 3
8-2-1 CIP Message Structure for Accessing CIP Objects...................................... 8 - 3
8-2-2 CIP Message Structure for Accessing Variables .......................................... 8 - 4
8-3 Specifying Request Path ............................................................................. 8 - 5
8-3-1 Examples of CIP Object Specifications ........................................................ 8 - 5
8-3-2 Examples of Variable Specifications ............................................................. 8 - 6
8-3-3 Logical Segment ........................................................................................... 8 - 6
8-3-4 Data Segment............................................................................................... 8 - 6
8-3-5 Specifying Variable Names in Request Paths............................................... 8 - 7
8-4 CIP Object Services ................................................................................... 8 - 11
8-4-1 CIP Objects Sent to the Built-in EtherNet/IP Port ........................................8 - 11
8-4-2 Identity Object (Class ID: 01 hex) ................................................................8 - 11
8-4-3 NX Configuration Object (Class ID: 74 hex) ............................................... 8 - 14
8-4-4 TCP/IP Interface Object (Class ID: F5 hex)................................................ 8 - 28
8-4-5 Ethernet Link Object (Class ID: F6 hex) ..................................................... 8 - 31
8-4-6 Controller Object (Class ID: C4 hex) .......................................................... 8 - 37
8-5 Read and Write Services for Variables..................................................... 8 - 39
8-5-1 Read Service for Variables ......................................................................... 8 - 39
8-5-2 Write Service for Variables.......................................................................... 8 - 40
8-6 Variable Data Types.................................................................................... 8 - 43
8-6-1 Data Type Codes ........................................................................................ 8 - 43
8-6-2 Common Format......................................................................................... 8 - 43
8-6-3 Elementary Data Types .............................................................................. 8 - 44
8-6-4 Derived Data Types .................................................................................... 8 - 45
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