Rockwell-automation 1761-NET-DNI DeviceNet Interface (DNI) Manual de usuario Pagina 90
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Publication 1761-UM005B-EN-P - October 2006
90 Glossary
DeviceNet Master
A product capable of owning input/output (I/O) on a DeviceNet
network.
DeviceNet Slave
A product whose data (or portion of) can be owned by DeviceNet
master.
DF1 Full Duplex
DF1 is a standard (open) point-to-point communication protocol.
Virtually all Allen-Bradley controllers (PLC-3, PLC-5R, SLC, MicroLogix)
that support an RS-232 communication port support DF1.
Explicit Messaging
A DeviceNet message that gets/sets device configuration information.
Heartbeat
A mechanism that lets a device, set of devices, or a connection check
for operation or integrity. Also known as a watchdog.
Input Buffer
A set of 16-bit words that is available to a master on a DeviceNet
network. The input buffer in DNI Series A is configurable from 1… 16
data words (DNI Series B is configurable from 1…32). The data in the
input buffer originates from the device connected to the RS-232 port
(either by the DNI reading the data, or the RS-232 device writing the
data to the DNI). The input buffer terminology is used because the
data is input data to the DeviceNet master.
Messaging
A general term that identifies the exchange of data between devices.
The two major types of DeviceNet messaging are:
• I/O - DeviceNet master and DeviceNet slave.
• Peer-to-peer - Between compatible devices without a master’s
involvement.
Output Buffer
A set of 16-bit data words that is available to a Master on a DeviceNet
network. The output buffer in DNI Series A is configurable from 1…16
- 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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