Rockwell-automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM Manual de usuario Pagina 350
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Valorado. / 5. Basado en revisión del cliente
Publication AG-UM008C-EN-P - February 2005
B-4 Basic DF1 Protocol Troubleshooting
DF1 full- and half-duplex protocols are character-oriented and
combine ASCII characters into two symbol types:
• control
• data
A symbol is a sequence of one or more bytes having a specific
meaning to the link protocol. The component characters of a symbol
must be sent one after another with no other characters inserted
between them.
DF1 Half-Duplex Protocol
To help you diagnose communication problems, you can use a serial
line analyzer to see the data packets being transmitted on the RS-232
link between the DTE and the DCE. For further details, see the DF1
Protocol and Command Set Reference Manual, Publication
1770-RM516.
Table B.1 Summary of DF1 Half-Duplex Protocol Packet Exchanges
For this information See
different types of communication packet exchanges
between a master station and a remote station
Table B.1
definitions of the packets Table B.2
Message Type Master Station’s Packet Remote Station’s Packet
Master station sending a MSG instruction
to a remote station
DLE SOH stn DLE STX message DLE ETX
BCC/CRC
DLE ACK
Master station sending a poll; remote
station replying to a poll indicating it has
no data to transmit
DLE ENQ stn BCC DLE EOT
Master station sending a poll; remote
station sending a MSG instruction as a
reply
DLE ENQ stn BCC
DLE ACK
(master station acknowledges receipt of
the remote station’s message)
DLE STX message DLE ETX BCC/CRC
- SCADA System 1
- Important User Information 2
- Summary of Changes 3
- Table of Contents 5
- Chapter 3 6
- Configuring MicroLogix 6
- 1100/1200/1500 Controllers 6
- Chapter 4 7
- 5/05 Processors 7
- Chapter 5 8
- Chapter 6 9
- Configuring MicroLogix 1000 9
- Chapter 7 9
- Chapter 8 10
- Configuring Modems 10
- Table of Contents 7 11
- Appendix E 13
- Sample Ladder Logic 13
- Glossary 14
- What SCADA Information 15
- Is Available? 15
- Audience 15
- Contents of this Manual 16
- Address Conventions 17
- Related Publications 18
- Designing Communication 19
- Choosing a Polling Mode 20
- Addressing Tips 24
- Communication Scheme 26
- Design Using 26
- Standard-Mode 26
- To help you understand See 27
- • design a polling scheme 28
- • plan for timing issues 28
- Design Considerations 31
- Message-Based Mode 33
- Protocol 34
- Figure 1.9 36
- DF1 Radio Communication 36
- Figure 1.10 36
- Data table 36
- What to Do Next? 37
- Configuring a DF1 41
- Half-Duplex Standard 41
- Mode Master Station 41
- 5 software: 42
- Create Station Lists 46
- of the station currently 47
- B11:2 1111 1111 1111 1111 48
- Message-based Mode 49
- (slave) station 13 65
- N15:0 file 66
- Ladder Rung 67
- Control Block 67
- Controllers 69
- Installing the Controller 70
- Optical Isolator 71
- Supplied Optical Isolator 72
- To modem 73
- Only) Selected 78
- Configuring a Station on a 101
- Point-to-Point Link 101
- DF1 Messaging 104
- Processor-to-Processor 105
- Message-based Polling Mode 106
- Standard Polling Mode 107
- Example MSG Control 110
- MicroLogix Controller 112
- Modbus RTU Protocol 114
- Modbus RTU Slave 115
- Modbus Slave Memory Map 119
- Modbus Commands 121
- Modbus Error Codes 122
- Configuring a Modbus Message 124
- This Controller Parameters 125
- Target Device 125
- Data Logging 126
- Example Queue 0 127
- Example Queue 5 128
- String Length of Record 129
- Number of Records 129
- Configuring Data Log Queues 130
- Data Log 132
- Data Logging Enable (EN) 133
- Data Logging Done (DN) 133
- Data Logging Overflow (OV) 133
- File Size (FSZ) 133
- Retrieving (Reading) Records 134
- Accessing the Retrieval File 135
- Retrieval Tools 135
- Conditions that Will Erase 137
- Processors 139
- Overview 140
- Installing the Processor 140
- Using Modems that Support 141
- DF1 Communication 141
- Protocols 141
- Radio Modems 142
- Line Drivers 142
- Modem Control Line 143
- Operation 143
- DF1 Half-Duplex Slave 144
- DF1 Half Duplex Master 144
- DF1 Radio Modem 145
- Configuring DF1 146
- Half-Duplex Channel 0 146
- Parameters 146
- ATTENTION 147
- Configuring a 148
- Standard-Mode DF1 148
- Half-Duplex Master Station 148
- 4800 2 ms/byte 152
- 9600 1 ms/byte 152
- 19200 0.5 ms/byte 152
- 4.3 on page 4-16 explains 154
- Monitor Active Stations 155
- Message-based Mode DF1 156
- Half-Duplex 156
- Master Station 156
- 158
- Configuring a Slave Station 160
- Configuring Channel 0 Poll 163
- Configuring a Radio Modem 165
- 4.10 on page 4-36 explains 173
- Messaging 175
- MSG being sent to a 182
- PLC-5 processor or a 182
- Logix controller 182
- MSG being sent to another 183
- SLC 500 or a MicroLogix 183
- Interface Modules 187
- Installing the 1747-KE 188
- Interface Module 188
- Configuring the Processor 189
- Save the Configuration 196
- For application See On page 199
- IMPORTANT 200
- Chapter Objectives 205
- 8-pin Mini Din 207
- 9-pin D-shell 207
- 1761-CBL-PM02 Series B Cable 207
- Automatic Protocol 208
- Switching 208
- Dial-up Phone Modems 210
- Leased-Line Modems 210
- Ownership Timeout 213
- Configuring RTS Send 215
- Delay and RTS Off Delay 215
- Configuring Poll Timeout 216
- Point-to-Point Station 217
- Polled Report-by-Exception 219
- Station 1 220
- Station 2 220
- ™ 5000 programming software 228
- 9-pin female cable connector 229
- Configuring the Controller 231
- Configuring a Master 235
- Station for Standard Polling 235
- DF1 Half-Duplex Master 239
- Diagnostic Counter 239
- Create Polling List(s) 241
- Message-Based Mode DF1 242
- Station for Message-based 243
- Polling Mode 243
- Configuring Slave Poll 246
- Diagnostic Counters 246
- DF1 Point-to-Point 250
- Accessing DF1 Diagnostic 251
- Counters 251
- Controller-to-Controller 255
- Logix Controller Error 264
- Codes for PLC and SLC 264
- Messages 264
- Configuration Tips 268
- Telephone Modem 268
- Configurations 268
- Rockwell Automation 269
- 8-4 Configuring Modems 270
- DATA-LINC Group 271
- LLM1000-2 and LLM1000-4 272
- Configuring Modems 8-7 273
- 8-8 Configuring Modems 274
- Configuring Modems 8-9 275
- DLM4100-SLC and DLM4100-PLC 276
- Miille Applied Research 277
- Company, Inc. (MARC) 277
- MARC Model 166-101 278
- Cable Pin Assignments 279
- MARC Model 137-001 280
- Switch Settings 281
- MARC Model 148-001 282
- MARC #148-001 283
- MARC Model 166-100 284
- MARC Model 166-010 286
- Radio Modem 287
- SRM6000/6100/6200E-SLC 291
- SRM6000/6100/6200E-PLC 293
- Electronic Systems 295
- Technology (ESTeem) 295
- (1) ESTeem cable # AA06 (6’) 298
- (1) A-B 1770-CP cable (16.5’) 299
- Power Line Modem 305
- Model : LCM100-2 306
- Serial Number: 306
- Half-Duplex Communications 307
- Configuring RSLinx Classic 316
- Version 2.x as a Slave 316
- Setting up the System 323
- Communicating Over the 324
- Telephone Line 324
- Figure 10.3 AWA Instruction 325
- Transfer Data 327
- Peer-to-Peer 328
- Communication 328
- Report-by-Exception and/or 329
- Master Station-Initiated 329
- Over a Telemetry Network 331
- Remote Programming via 332
- Gateway 332
- SLC 5/05 Ethernet to DF1 334
- Passthru 334
- Logix EtherNet/IP to DF1 337
- Modem Cable Reference 339
- Enhanced PLC-5 340
- 1747-KE Interface Module 341
- ASCII Terminal to 1747-KE 342
- SLC 5/03, 5/04, or 5/05 343
- Logix, and MicroLogix 1500 343
- Channel 1 343
- 1785-KE Module 344
- MicroLogix 345
- Appendix 347
- Appendix Objectives 347
- General Tips 347
- Troubleshooting 347
- DF1 Protocol 349
- DF1 Half-Duplex Protocol 350
- DF1 Full-Duplex Protocol 352
- DF1 Radio Modem Protocol 353
- Contact List 355
- Worksheets 357
- When You’re Finished 358
- How to Use the Worksheets 359
- Worksheet 1.1 360
- SCADA System Schematic 360
- Page 1 of 1 361
- Worksheet 2.3 363
- Enhanced PLC-5 DF1 363
- Half-Duplex Slave Station 363
- Configuration 363
- Worksheet 2.4 364
- Full-Duplex Point-to-Point 364
- Worksheet 3.3 367
- MicroLogix 1100/1200/1500 367
- Station Configuration 367
- Worksheet 3.5 369
- Radio Modem Slave Station 369
- Worksheet 4.3 372
- SLC 5/03, 5/04, and 5/05 DF1 372
- Worksheet 4.5 374
- Radio Modem Station 374
- Worksheet 6.1 377
- MicroLogix 1000 DF1 377
- Worksheet 7.3 380
- Logix DF1 Half-Duplex 380
- Slave Station Configuration 380
- D-26 Worksheets 382
- Master-initiated MSG 390
- Rungs 4-23 have been omitted 399
- Rungs 6-23 have been omitted 402
- 2 Glossary 406
- Glossary 3 407
- 4 Glossary 408
- Glossary 5 409
- 6 Glossary 410
- Numerics 411
- 2 Index 412
- Index 3 413
- 4 Index 414
- Index 5 415
- 6 Index 416
- Index 7 417
- 8 Index 418
- Index 9 419
- Installation Assistance 420
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