Rockwell-automation 25B PowerFlex 525 Embedded EtherNet/IP Adapter Manual de usuario Pagina 84
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84 Rockwell Automation Publication 520COM-UM001B-EN-E - March 2013
Chapter 7 Using Multi-Drive Mode
Multi-Drive Mode Example for Network
Benefits of Multi-drive mode include:
• Lower hardware costs. No need to purchase additional communication
adapters for daisy-chained drives.
• Reduces the network node count. For example, in Single-drive mode 30
drives would consume 30 nodes. In Multi-drive mode, 30 drives can be
connected in 6 nodes.
• Controller can control, monitor, and read/write parameters for all five
drives.
The trade-offs of Multi-drive mode include:
• If the PowerFlex 525 with embedded EtherNet/IP adapter is powered
down, then communications with the daisy-chained drives is disrupted
and the drives will take the appropriate communications loss action set in
each drive.
• Communications throughput to the daisy-chained drives will be slower
than if each drive was a separate node on EtherNet/IP (Single-drive
mode). This is because the embedded EtherNet/IP adapter must take the
EtherNet/IP data for the other drives and sequentially send the respective
data to each drive over RS-485. The approximate additional throughput
time for Logic Command/Reference to be transmitted and received by
each drive is:
IMPORTANT
For the examples in the chapter, we will use the PowerFlex 525 as a master
drive with four daisy-chained PowerFlex 4M drives.
Drive Additional Throughput Time
versus Single-Drive Mode
PowerFlex 525 0 ms
PowerFlex 525 plus 1 drive +24 ms
PowerFlex 525 plus 2 drives +48 ms
PowerFlex 525 plus 3 drives +72 ms
PowerFlex 525 plus 4 drives +96 ms
Esc
Sel
Up to 5 drives per node
EtherNet/IP
Up to four daisy-chained PowerFlex drives
(PowerFlex 4M shown)
RS-485 cable
PowerFlex 525
as master drive
AK-U0-RJ45-TB2P connector with
terminating resistor (120 Ω)
AK-U0-RJ45-TB2P connector with
terminating resistor (120 Ω)
AK-U0-RJ45-TB2P
- User Manual 1
- Important User Information 2
- Summary of Changes 3
- New and Updated 3
- Information 3
- Table of Contents 5
- Logic Command/Status Words: 7
- PowerFlex 525 Drives 7
- Overview 9
- Preface Overview 10
- Getting Started 11
- Features 12
- Compatible Products 12
- Required Equipment 12
- User-Supplied Equipment 13
- Safety Precautions 14
- Quick Start 14
- ENET LINK 15
- EtherNet/IP 15
- Chapter 1 Getting Started 16
- Setting Up the Adapter 17
- Setting the IP Address 18
- Connecting the Adapter to 18
- Startup Status Indication 19
- Commissioning the Adapter 21
- Configuring the Adapter 23
- Using the PowerFlex 4-Class 25
- HIM to Access Parameters 25
- Using BOOTP 26
- Subnet Mask, and Gateway 29
- Setting the Data Rate 30
- Using Master-Slave Hierarchy 31
- Setting a Fault Action 33
- Resetting the Adapter 34
- Viewing the Adapter Status 34
- Using Parameters 34
- Configuring the I/O 37
- CompactLogix Example 38
- 1 (Front)1 (Front)1 (Front) 38
- 2 (Rear) 38
- 00:00:BC:2E:69:F6 38
- Configuring the I/O Chapter 4 39
- Chapter 4 Configuring the I/O 40
- Controller Input Tags 45
- Controller Output Tags 45
- Differences Found Screen 48
- ADC and Logix Memory 52
- Monitoring the ADC Progress 53
- Input Image Controller Tags 58
- Output Image Controller Tags 58
- Limitations in Using 60
- MicroLogix 1100/1400 60
- Using the I/O 61
- Using Logic Command/Status 62
- Using Reference/Feedback 63
- Using Datalinks 63
- Example Ladder Logic 64
- Program Information 64
- Feedback 65
- Controller Tags 66
- Program Tags 67
- Reference 68
- Using Explicit Messaging 69
- Performing Explicit 70
- CompactLogix Examples 70
- Parameter 71
- Parameters 74
- Write Multiple Messaging 79
- 520-UM001 80
- Using Multi-Drive Mode 83
- System Wiring 85
- Understanding the I/O Image 85
- Configuring the RS-485 86
- Using Multi-Drive Add-On 87
- Multi-Drive Ladder Logic 97
- Program for Generic Profile 97
- CompactLogix Example Using 99
- Generic Profile 99
- Main Routine 100
- Drive 0...4 Control Routines 101
- Drive 0 Control Routine 102
- Drive 1 Control Routine 103
- Drive 2 Control Routine 104
- Drive 3 Control Routine 105
- Drive 4 Control Routine 106
- Multi-Drive Mode Explicit 107
- Messaging 107
- Additional Information 108
- Troubleshooting 111
- ENET Status Indicator 112
- LINK Status Indicator 112
- Viewing Adapter Diagnostic 112
- Viewing and Clearing Events 114
- Adapter Events 115
- Chapter 8 Troubleshooting 116
- Specifications 117
- Appendix A Specifications 118
- Adapter Parameters 119
- Appendix B Adapter Parameters 124
- EtherNet/IP Objects 125
- Identity Object 126
- Instance Attributes 127
- Assembly Object 128
- Register Object 129
- Instances (Multi-Drive) 130
- Class Attributes 131
- Parameter Object 132
- PCCC Object 135
- DPI Device Object 138
- Instance Attribute 140
- DPI Parameter Object 141
- on page 146 143
- Descriptor Attributes 144
- Formulas for Converting 146
- Common Services 146
- Object Specific Services 146
- DPI Fault Object 147
- TCP/IP Interface Object 149
- Ethernet Link Object 151
- Appendix D 153
- Logic Command Word 153
- Logic Status Word 154
- Position Bit Definitions 155
- Glossary 157
- Rockwell Automation Support 166
- Documentation Feedback 166
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