Rockwell-automation 1747-BSN Backup Scanner Module User Manual Page 111
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Publication 1747-UM010B-EN-P - September 2003
Module Control and Status Word 6-15
Data Block Counters
To help verify the functionality of the data transfer application
program, the 1747-BSN module has a counter for each data block that
can be transferred.
Each time that a block is transferred from the primary SLC 5/0x to the
primary 1747-BSN, the data block counter that corresponds to this
block is incremented once in the primary 1747-BSN. When the
secondary SLC 5/0x reads a block from the secondary 1747-BSN, the
corresponding counter is incremented once in the secondary
1747-BSN.
Address Data Block Counter
M1:s.3430 Block # 1
M1:s.3431 Block # 2
M1:s.3432 Block # 3
M1:s.3433 Block # 4
M1:s.3434 Block # 5
M1:s.3435 Block # 6
M1:s.3436 Block # 7
M1:s.3437 Block # 8
M1:s.3438 Block # 9
M1:s.3439 Block # 10
M1:s.3440 Block # 11
M1:s.3441 Block # 12
M1:s.3442 Block # 13
M1:s.3443 Block # 14
M1:s.3444 Block # 15
M1:s.3445 Block # 16
- Backup Scanner 1
- Important User Information 2
- Summary of Changes 3
- 4 Summary of Changes 4
- Table of Contents 5
- Chapter 4 6
- Chapter 5 6
- Configuration and Programming 6
- Chapter 6 7
- Chapter 7 7
- Table of Contents iv 8
- Table of Contents v 9
- Table of Contents vi 10
- Who Should Use This 11
- How to Use This Manual 11
- Conventions Used in This 12
- Rockwell Automation 13
- 4 Preface 14
- Overview 15
- How the Backup Scanner 18
- Scans Remote I/O 18
- SLC and Scanner 19
- Asynchronous Operation 19
- How the Scanner Interacts 20
- Example Scanner I/O Image 22
- Complementary I/O 24
- Overview 1-11 25
- 2-Slot Addressing 26
- 1-Slot Addressing 27
- 1/2-Slot Addressing 28
- Discrete Modules 29
- Block Transfer Modules 29
- 012 3 45678 30
- 012 345678 30
- Application Considerations 31
- Hardware Features 32
- Overview 1-19 33
- Configuration Switch 33
- Module Address Switch 33
- Compatible Devices 34
- Backup Concepts for the 35
- SLC 500 System 35
- Processor Catalog Number 36
- SLC 5/02 1747-L524 36
- SLC 5/03 1747-L531, -L532 36
- Data Transfer 37
- Switchover 37
- Role of the 1747-BSN Module 38
- Required Tools and 39
- Equipment 39
- Procedures 40
- Installation and Wiring 43
- Low Voltage Directive 44
- Safety Considerations 44
- Configuration Selection 45
- Installation 46
- Insertion 47
- Wiring Considerations 48
- DH+ Network Wiring 50
- Status LEDs 51
- Chapter Objectives 53
- How the 1747-BSN Module 53
- Operates 53
- RIO/DH+ Communication Channel 55
- Data Table Transfer 58
- How the Backup System 59
- Startup Sequencing 60
- Power-up Sequencing 61
- Processor Mode Change 61
- Sequencing 61
- Fail-over Sequencing 61
- Power Down Sequencing 62
- Restarting a Failed System 62
- 0123456789101112131415 67
- 0246024602460246 67
- Rules for Configuring the 68
- RIO Logical Rack 11 Starting 70
- Logical Group 70
- G-File Considerations For 74
- Configuring Remote I/O 74
- Crossing Logical Rack 74
- Boundaries 74
- Understanding M Files 76
- M0 Control File Description 78
- M0 File - RIO Device Inhibit 79
- M0 File - RIO Device Reset 80
- M0 File - Remote Output 81
- Reset Control 81
- Example 3 84
- M1 Status File Description 85
- Active Device Status 88
- 1100100001000100 88
- 101111101100111 88
- 1001100001000000 88
- 02460246 89
- RIO Status Example 90
- IMPORTANT 91
- Understanding Slot 94
- Addressing 94
- SLC/Scanner Configuration 95
- Using HHT 95
- System Status Word 98
- Module Status Word 100
- Transferring Data over the 101
- High-Speed Serial Link 101
- Data Transfer Control Word 102
- Data Transfer Status Word 103
- Data Transfer Handshake 104
- Data Transfer Handshake Word 105
- Program File 2 106
- Program File 3 107
- Program File 4 108
- Switch Assemblies Status 109
- Module Status Counters 110
- Data Block Counters 111
- RIO Block Transfer 113
- RIO Block Transfer General 117
- Functional Overview 117
- Example 1 119
- Example 2 120
- Using Block Transfer 121
- Instructions (BTR and BTW) 121
- Parameters for BTR and BTW 123
- Control Status Bits 124
- Instruction Operation 128
- Programming Examples 129
- Figure 7.2 Directional 130
- Switchover Considerations 135
- Input Signal Update Time 136
- Time-out on Remote I/O Link 136
- Divergence 137
- Forcing I/O 137
- Data Highway Plus 138
- Switching 138
- Remote I/O Switching 140
- Programming Techniques 143
- Data Transfer Schemes 156
- Data Transfer Method 2 158
- Accounting for Instructions 159
- That Could Cause Problems 159
- During Switchover 159
- Timer Instructions 160
- Counter Instructions 161
- FIFO Instructions 162
- Block Transfer Instructions 162
- Message Instructions 163
- PID Control Files 163
- Summary of Programming 164
- Considerations 164
- Specifications 165
- Network Specifications 166
- Throughput Introduction 166
- Calculating Throughput 167
- A-4 Specifications 168
- RIO Scan Time Calculation (T 169
- Present 169
- A-6 Specifications 170
- Specifications A-7 171
- Determining T 172
- Specifications A-9 173
- A-10 Specifications 174
- Block Transfer Throughput 175
- A-12 Specifications 176
- Specifications A-13 177
- ) Tables 178
- without M0 File Writes 179
- A-16 Specifications 180
- M0-M1 Files and G Files 181
- Configuring M0-M1 Files 182
- Addressing M0-M1 Files 182
- M0/M1 Monitoring 183
- Access Time 184
- SLC 5/02 Processor Example 185
- Minimizing the Scan Time 186
- Capturing M0-M1 File Data 187
- Editing G File Data 189
- RIO Configuration Worksheet 191
- Glossary 193
- 4 Glossary 194
- Glossary 5 195
- 6 Glossary 196
- Glossary 7 197
- 8 Glossary 198
- 2 Index 200
- Index 3 201
- 4 Index 202
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