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CP2E CPU Unit Software User’s Manual(W614)
14-3 No-protocol Communications with General Components............................................... 14-10
14-3-1 Overview ................................................................................................................................. 14-10
14-3-2 Flow of Operation.................................................................................................................... 14-11
14-3-3 PLC Setup...............................................................................................................................14-11
14-3-4 Related Auxiliary Area Bits and Words ................................................................................... 14-12
14-4 Modbus-RTU Easy Master Function .................................................................................. 14-14
14-4-1 Overview ................................................................................................................................. 14-14
14-4-2 Flow of Operation.................................................................................................................... 14-14
14-4-3 Setting and Word Allocation.................................................................................................... 14-15
14-4-4 Programming Examples.......................................................................................................... 14-18
14-5 Serial PLC Links .................................................................................................................. 14-27
14-5-1 Overview ................................................................................................................................. 14-27
14-5-2 Flow of Operation.................................................................................................................... 14-28
14-5-3 PLC Setup...............................................................................................................................14-28
14-5-4 Operating Specifications .........................................................................................................14-30
14-5-5 Example Application................................................................................................................ 14-37
14-6 Connecting the Host Computer ......................................................................................... 14-39
14-6-1 Overview .................................................................................................................................14-39
14-6-2 Flow of Operation.................................................................................................................... 14-39
14-6-3 Command/response Format and List of Commands .............................................................. 14-40
14-6-4 Restrictions on the Usage of Host Link...................................................................................14-41
14-7 Modbus-RTU Slave Function .............................................................................................. 14-42
14-7-1 Overview ................................................................................................................................. 14-42
14-7-2 Flow of Operation.................................................................................................................... 14-43
14-7-3 PLC Setup...............................................................................................................................14-43
14-7-4 Operation Specifications .........................................................................................................14-44
14-7-5 Command and Response Details ........................................................................................... 14-45
14-7-6 Related special auxiliary relay................................................................................................. 14-51
14-8 Precautions on the usage of RS-485 ................................................................................. 14-52
Section 15 Ethernet
15-1 System Configuration and Features.................................................................................... 15-3
15-1-1 Connecting the CX-Programmer to PLCs Online via Ethernet .................................................15-4
15-1-2 Exchanging Data between OMRON PLCs using Ethernet ....................................................... 15-5
15-1-3 Creating an Original Communications Procedure Using TCP/IP(UDP/IP) for the Host
Application or Communicating with PLCs from Another Manufacturer ..................................... 15-6
15-1-4 Automatically Adjusting the PLC’s Internal Clock at Regular Intervals ..................................... 15-6
15-2 Specifications ........................................................................................................................ 15-7
15-2-1 General Specifications (Ethernet) ............................................................................................. 15-7
15-2-2 Comparison with Previous Models (Ethernet Related) ............................................................. 15-8
15-3 Basic Setting for Ethernet................................................................................................... 15-10
15-3-1 Overview of Startup Procedure............................................................................................... 15-10
15-3-2 PLC Setup Procedure ............................................................................................................. 15-11
15-3-3 Basic Settings ......................................................................................................................... 15-13
15-3-4 Communications Test.............................................................................................................. 15-15
15-4 FINS Communications ........................................................................................................ 15-16
15-4-1 FINS Communications Service Specifications........................................................................ 15-16
15-4-2 FINS Communications Service ...............................................................................................15-17
15-4-3 Procedure for Using FINS/UDP, FINS/TCP............................................................................. 15-17
15-4-4 PLC Setup for FINS/UDP and FINS/TCP Applications .......................................................... 15-18
15-4-5 Auxiliary Area Allocations........................................................................................................ 15-22
15-4-6 New FINS Commands ............................................................................................................ 15-22
15-4-7 CMND/SEND/RECV Instructions............................................................................................ 15-34
15-4-8 Restrictions When Using FINS Communication Services....................................................... 15-35
15-5 Socket Services ................................................................................................................... 15-36
15-5-1 Overview of Socket Service .................................................................................................... 15-36
15-5-2 Procedure for Using Socket Service Functions....................................................................... 15-36
15-5-3 Socket Services and Socket Status ........................................................................................ 15-37
15-5-4 PLC Setup for Socket Services.............................................................................................. 15-38
15-5-5 Auxiliary Area Allocations........................................................................................................ 15-39
15-5-6 Data Memory Area Allocations ............................................................................................... 15-42
15-5-7 Socket/TCP Programming Example........................................................................................ 15-50
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