Rockwell-automation 1761-NET-DNI DeviceNet Interface (DNI) Manual de usuario Pagina 31
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Publication 1761-UM005B-EN-P - October 2006
DNI Configuration Parameters and Programming Notes 31
Organization of Input Data
The following diagram describes how the Split Point parameter affects
the data in the DF1 Device. The split point represents the last word of
the Master data. Words above the split point are Explicit data.
Organization of Input Data
Input Split Point Example
We need 4 (3.5 data + 0.5 status) words of slave data that the master
will own, and we need to configure an additional 15 words so that
other DeviceNet products can read data.
• Input Size = 19
• Input Split Point = 4
DNI Device
Explicit\
Input
Assembly
Master
Input
Assembly
DF1 Device
most significant word
Explicit
Inputs
least significant word
most significant word
Master’s
Inputs
least significant word
Higher
Addresses
Input
File
Size
Lower
Addresses
Split
Point
- DeviceNet 1
- Interface 1
- Important User Information 2
- Summary of Changes 3
- 4 Summary of Changes 4
- Table of Contents 5
- Table of Contents 6 6
- About This Publication 7
- Who Should Use This 7
- Publication 7
- Conventions 7
- Additional Resources 8
- Overview 9
- 10 Overview 10
- Quick Start 11
- IMPORTANT 12
- Configuring Master/Slave 13
- 0…254 0 90 14
- 0…254 1 95 14
- 16 Quick Start 16
- Operation 17
- Network Configuration 18
- Software 18
- Messaging Services 19
- Messaging Overview 20
- Programming Over the 21
- DeviceNet Network 21
- Remote Access to DeviceNet 22
- Installation and Wiring 23
- Safety Considerations 24
- Mounting 24
- Panel Mounting 25
- Network Port Wiring 26
- Cable Selection Guide 26
- Programming Notes 27
- EDS Parameters for the DNI 28
- Input Size 29
- Input Split Point 30
- Organization of Input Data 31
- Input Split Point Example 31
- Input Type 33
- Input Data File 33
- Input Word Offset 34
- Output Size 35
- Output Split Point 36
- Organization of Output Data 37
- Output Split Point Example 37
- Output Type 38
- Output Data File 39
- Output Word Offset 39
- Device Type 41
- I/O Scan Enable 41
- DF1 Heartbeat 43
- DF1 (RS-232) Port A DEF A 44
- DNI’s Read Sequence 44
- DNI’s Write Sequence 44
- Data Scan Delay 45
- Message Timeout 46
- DF1 Substitute Address 47
- DF1 Autobaud 47
- DF1 Baud Rate 48
- DeviceNet Autobaud 48
- Status Byte 50
- Input Status to Master Device 50
- Output Status to DF1 Device 51
- DNI Software Files 53
- File Descriptions 54
- Obtaining the Files 54
- Setting Up Network 55
- Configuration Software 55
- – Communications Adapter 56
- Setting Up DeviceNet Manager 57
- Commissioning the DNI 58
- Modifying DNI Parameters 60
- Troubleshooting 63
- Fault Conditions 64
- DNI Series A 65
- DeviceNet Class Codes 65
- DNI Series B 66
- Class Code: 0x04 67
- Application Examples 69
- Example DNI Configuration 70
- Parameters 70
- Example Ladder Logic 71
- Using DF1 Protocol for 78
- Explicit Messages Over a 78
- Routing Profile 79
- Configuration 79
- Explicit Messaging 80
- Examples 80
- Writing (Set) Data Example 82
- Specifications 85
- Dimensions 86
- 88 Specifications 88
- Glossary 89
- Interface Basics 89
- Terms and Abbreviations 89
- 90 Glossary 90
- Peer-To-peer 91
- Profile Register 91
- 92 Glossary 92
- 94 Index 94
- Index 95 95
- 96 Index 96
- Index 97 97
- 98 Index 98
- Rockwell Automation 100
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