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Message Service Transmission Delay Section 10-5
Example Calculation In this example, RECV(098) is used to receive 256 words of data from another
PLC. The maximum transmission delay is calculated based on the following
operating conditions.
• Local node’s CPU cycle time: 10 ms
• Local node’s CPU execution mode: Normal
• Local node’s CPU peripheral servicing time: Default (4%)
• Remote node’s CPU cycle time: 15 ms
• Remote node’s CPU execution mode: Normal
• Remote node’s CPU peripheral servicing time: Default (4%)
• Baud rate: 100Base-TX
Item Calculated value
CPU Bus Unit service cycle (local
node, 1)
10 ms
CPU Bus Unit service processing
time (local node, 1)
0.4 ms
Send processing (command) 0.550 ms ≅ 0.5 ms
Transmission delay (command) 0.0118 ms ≅ 0.1 ms
Receive processing (command) 0.704 ms ≅ 0.7 ms
CPU Bus Unit service cycle (remote
node)
15 ms
CPU Bus Unit service processing
time (remote node)
0.6 ms
Send processing (command) (256 × 0.002) + 0.550 = 1.062 ≅ 1.1 ms
Transmission delay (command) (256 × 0.0013) + 0.0118 = 0.3446 ≅ 0.3 ms
Receive processing (command) (256 × 0.003) + 0.704 = 1.472 ≅ 1.5 ms
CPU Bus Unit service cycle (local
node, 2)
10 ms
CPU Bus Unit service processing
time (local node, 2)
0.4 ms
Maximum transmission delay 10 + 0.4 + 0.5 + 0.1 + 0.7 + 15 + 0.6 + 1.1 +
0.3 + 1.5 + 10 + 0.4 = 40.6 ms
- OPERATION M ANUAL 1
- EtherNet/IP Units 3
- OMRON Product References 5
- Visual Aids 5
- Trademarks and Copyrights 5
- TABLE OF CONTENTS 10
- About this Manual: 11
- Relevant Manuals 12
- WARRANTY 15
- LIMITATIONS OF LIABILITY 15
- Application Considerations 16
- Disclaimers 17
- Unit Versions of CS/CJ-series 19
- CIP Revisions and 20
- Unit Versions 20
- PRECAUTIONS 21
- 1 Intended Audience 22
- 2 General Precautions 22
- 3 Safety Precautions 22
- Safety Precautions 3 23
- 5 Application Precautions 24
- Application Precautions 5 25
- 6-1 Applicable Directives 26
- 6-2 Concepts 26
- SECTION 1 27
- Overview of EtherNet/IP 27
- 1-1 EtherNet/IP Unit Features 28
- Recommended 30
- Switching Hubs 30
- Communications 34
- Controller Link 35
- 1-5-1 Overview 36
- SECTION 2 39
- Unit Specifications 39
- Specifications 40
- CJ-series EtherNet/IP Unit 41
- 2-1-4 Dimensions 45
- 2-1-5 Software Configuration 46
- 192.168.250.1 47
- 255.255.255.0 47
- CS1W-EIP21 48
- @@@@@@@@@@@@ 48
- Displays errors that occurred 51
- 2-2-2 Switch Settings 52
- Node Address Setting 53
- 2-3-3 Switching Hub Types 54
- 2-3-4 Switching Hub Functions 55
- SECTION 3 59
- 3-1-1 Procedures 60
- 3-2 Switch Settings 62
- Switch Settings Section 3-2 63
- Setting the Unit Number 63
- Setting the Node Address 63
- Mounting to a PLC Section 3-3 64
- 3-3-3 Mounting 65
- 3-3-4 Handling Precautions 66
- 3-4 Network Installation 67
- Mounting Location 69
- Cable Location 69
- 3-5 Connecting to the Network 70
- EtherNet/IP Unit 71
- RJ45 Modular Connector 71
- Example: CS1W-EIP21 71
- 3-6 Creating I/O Tables 72
- Initial screen 73
- Password 73
- 3-8 TCP/IP and Link Settings 78
- 3-9 Tag Data Link Parameters 83
- 3-10 Other Parameters 87
- Other Parameters Section 3-10 88
- Using FINS/TCP 88
- Using FTP 88
- Using the Status Area 89
- Using SNMP 90
- Using SNMP Trap 90
- 3-11 Communications Test 91
- Application Example 92
- SECTION 4 93
- Memory Allocations 93
- 4-2 CIO Area Allocations 96
- User Settings 97
- Unit Status 2 101
- (EtherNet/IP Unit to 101
- CPU Unit) (n + 11) 101
- Configuration set 105
- 4-3 DM Area Allocations 109
- 4-4 User Settings Area 111
- 4-5 Auxiliary Area Data 114
- SECTION 5 117
- Determining IP Addresses 117
- 5-1 IP Addresses 118
- 5-1-4 Subnet Masks 119
- 5-1-5 CIDR 120
- UDP port 122
- TCP port 122
- Local FINS node number 123
- Local IP address 123
- Remote FINS node number 123
- ■ Local Device: Server 127
- ■ Local Device: Client 127
- FINS node number transmission 127
- 5-2-3 Application Examples 128
- Models Supporting 130
- Automatic Generation 130
- Method (Static) 130
- Models Supporting IP 130
- Address Table Method 130
- Models that Can Use the 131
- Combined Method 131
- FINS/UDP and FINS/TCP 131
- IP router 132
- Global address 132
- (required) 132
- ■ FINS Communications Service 133
- SECTION 6 137
- Tag Data Link Functions 137
- 6-1-1 Tag Data Links 138
- 6-1-2 Overview of Operation 139
- 6-1-4 Data Link Data Areas 142
- PLC status 143
- PLC Operating Flag 144
- PLC Error Flag 144
- I/O memory 145
- CPU Unit 145
- Connection 145
- 6-2 Setting Tag Data Links 147
- 6-2-3 Registering Devices 151
- Select Disable or Enable 155
- Configurator 162
- 6-2-5 Connection Settings 167
- Automatically Setting 173
- Connections 173
- Device Connection 175
- Structure Tree 175
- ■ Setting Example A 178
- ■ Allocations 178
- Drag & Drop 185
- Connecting through 187
- Ethernet 187
- Network connection icon 188
- EtherNet/IP 191
- Verifying the Network 199
- Configuration 199
- Verifying the Device 200
- Parameters 200
- 6-2-17 Checking Connections 206
- 6-2-18 Changing Devices 207
- Normal Target Node 210
- Tag Data Link 210
- Operating 210
- SECTION 7 213
- Overview Section 7-1 214
- Ethernet (EtherNet/IP) 217
- Flashing red 220
- Not relevant 220
- SECTION 8 223
- FINS Communications 223
- Application Layer 224
- Transport Layer 224
- Internet Layer 224
- Physical Layer 224
- 8-2 FINS/UDP Method 226
- FINS/UDP Method Section 8-2 227
- 8-3 FINS/TCP Method 228
- FINS/TCP Method Section 8-3 229
- 8-4-1 Routing Table Overview 233
- Routing Tables Section 8-4 234
- 8-5 Using FINS Applications 237
- 1 (EtherNet/IP Unit) 239
- 8-5-2 FinsGateway 241
- • Communication Unit Tab Page 242
- (@)SEND(90) 248
- (@)RECV(98) 249
- (@)CMND(490) 250
- 8-6-4 Writing Programs 252
- 8-6-5 Program Example 256
- (See note 1.) 120000 257
- (See note 1.) 257
- ■ Conditions for High Traffic 258
- SECTION 9 259
- Message Communications 259
- Explicit message 260
- PLC's 261
- CIP UCMM MESSAGE SEND (28 10) 262
- (See note.) 263
- EXPLICIT MESSAGE SEND (28 01) 267
- Transport ID 270
- Message monitoring time 270
- Message request size 270
- Program Example 273
- Service Code 277
- Attribute Value 277
- Detailed status 280
- Address L 282
- No. of bytes read 282
- Address H 282
- No. of words read 283
- SECTION 10 287
- 10-1 Communications System 288
- Packet Interval (RPI) 289
- Multicast 290
- 1. Send Processing 291
- 10-2-4 Changing the RPI 298
- 10-2-5 RPI Setting Examples 302
- Example Conditions 303
- Checking the Device 303
- Bandwidth Usage 303
- Changing the 304
- Settings 304
- Coefficient 311
- : I/O processing 313
- : Data exchange 313
- 10-4-1 Overview 317
- SEND(090) Instruction 320
- RECV(098) Instruction 323
- SECTION 11 327
- FTP Server 327
- 11-1-1 Overview 328
- 11-1-2 Specifications 329
- 11-2-1 File Types 329
- 11-3-1 Procedure 331
- 11-3-3 FTP Tab 332
- $ ftp 150.31.2.83 333
- Name:CONFIDENTIAL 333
- 230 Guest logged in 333
- 11-5 Using FTP Commands 334
- 11-6 Checking FTP Status 340
- FTP Status Flag 340
- 11-7-1 File Memory 341
- 11-7-2 File Types 341
- .IOM file contents 343
- ■ CSV Format 344
- 11-8 FTP File Transfer Time 346
- ··· FTP started 347
- ··· Login name 347
- ··· Binary data type set 348
- File read 348
- File written 348
- FTP ended 348
- SECTION 12 349
- EtherNet/IP Unit or 350
- 12-1-2 Specifications 351
- 12-2-1 Procedure 351
- 12-2-3 Auto Adjust Time 353
- Function 354
- SECTION 13 357
- 13-1-1 Cleaning 358
- 13-1-2 Inspection 358
- 13-2 Simple Backup Function 359
- DIP switch settings 361
- 13-3 Using the Backup Tool 362
- SECTION 14 365
- Errors Related to the Tag 378
- Data Links 378
- Errors Related to Memory 379
- Errors Related to the 381
- Email [email protected] 385
- WEB www.odva.org 385
- 14-4 Error Log Function 390
- 14-4-4 Error Log Error Codes 391
- 14-5 Troubleshooting 394
- Troubleshooting Section 14-5 395
- 14-5-4 Tag Data Link Problems 396
- Relay Error Flag 397
- Appendix A 401
- Appendix B 403
- Appendix C 405
- Appendix D 407
- Terminology 408
- Route Path 409
- Port Segment 410
- Logical Segment 411
- Setting the Route Path 412
- Response Codes 413
- Appendix E 417
- CONTROLLER DATA READ 418
- Command code 418
- Mode Setting (Response) 419
- Ethernet Address (Response) 419
- CONTROLLER STATUS READ 420
- INTERNODE ECHO TEST 422
- 1,998 bytes max 422
- BROADCAST TEST RESULTS READ 423
- BROADCAST DATA SEND 423
- ERROR LOG READ 424
- ERROR LOG CLEAR 425
- Command Block 426
- Response Block 426
- IP ADDRESS TABLE WRITE 429
- IP ADDRESS WRITE 430
- Precautions 431
- IP ADDRESS TABLE READ 431
- IP ROUTER TABLE READ 432
- PROTOCOL STATUS READ 433
- TCP Status (Response) 435
- MEMORY STATUS READ 437
- SOCKET STATUS READ 439
- Command 439
- ADDRESS INFORMATION READ 440
- IP ADDRESS READ 441
- EXPLICIT MESSAGE SEND 442
- CIP UCMM MESSAGE SEND 443
- Description 444
- Appendix F 445
- Creating EDS Files 446
- Deleting EDS Files 446
- Saving EDS Files 446
- Searching EDS Files 447
- Appendix G 449
- Numerics 453
- Revision History 461
- Contact: www.ia.omron.com 464
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