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Troubleshooting 6-3
20-COMM-R Remote I/O Adapter User Manual
Publication 20COMM-UM004D-EN-P
NET A Status Indicator
This red/green bicolor LED indicates the status for the Remote I/O network
connection as shown in the table below.
Viewing Adapter Diagnostic
Items
If you encounter unexpected communications problems, the adapter’s
diagnostic items may help you or Rockwell Automation personnel
troubleshoot the problem. Adapter diagnostic items can be viewed with any
of these drive configuration tools:
• LCD PowerFlex 7-Class HIM (Diagnostics/Device Items)
• Connected Components Workbench software, version 1.02 or later
• DriveExplorer software, version 2.01 or later
• DriveExecutive software, version 3.01 or later
Using the HIM to View Adapter Diagnostic Items
Status Cause Corrective Actions
Off The adapter is not powered or is not properly
connected to the network.
• Securely connect the adapter to the drive using the Internal
Interface (ribbon) cable and to the network using a Remote I/O
cable.
• Correctly connect the Remote I/O network cable to the 3-pin
Remote I/O plug.
• Configure the adapter to use the baud rate at which the
network is operating.
• Configure the adapter to use a unique rack address on the
Remote I/O network.
• Apply power to the drive and network.
• Apply power to the controller.
Flashing Green The adapter is properly connected but is not
transferring I/O over the network.
• Verify that the scanner is in Run mode.
• Verify that the scanner is using the correct rack size for the
adapter.
• Verify that the adapter is configured for the correct rack size.
Steady Green The adapter is properly connected and is
communicating with the scanner on the network.
No action required.
Step Example Screen
1. Access parameters in the adapter.
See Using the PowerFlex 7-Class HIM to Access Parameters
on
page 3-2.
2. Press the or key to scroll to Diagnostics.
3. Press the (Enter) key to display the Diagnostics menu in
the adapter.
4. Repeat steps 2 and 3 to enter the Device Items option.
5. Press the or key to scroll through the items.
Main Menu:
Diagnostics
Parameter
Device Select
Device Item # 3
Reference
- User Manual 1
- Important User Information 2
- Summary of Changes 3
- Table of Contents 5
- About This Manual 7
- Rockwell Automation 8
- Additional Resources 8
- Resource Description 9
- About This Manual P-3 9
- P-4 About This Manual 10
- Getting Started 11
- Features 12
- Compatible Products 13
- Required Equipment 13
- User-Supplied Equipment 14
- Safety Precautions 15
- Quick Start 16
- Installing the Adapter 17
- Commissioning the Adapter 18
- Connecting the Adapter to 20
- Applying Power 24
- 2-10 Installing the Adapter 26
- Configuring the Adapter 27
- Using the PowerFlex 7-Class 28
- HIM to Access Parameters 28
- Setting the Rack Address 29
- Setting the Baud Rate 30
- Setting the Starting Module 30
- Setting the Last Rack 31
- Setting the Rack Size 31
- Setting the I/O 32
- Configuration 32
- Setting a Fault Action 33
- Resetting the Adapter 34
- Viewing the Adapter Status 35
- Using Parameters 35
- Updating the Adapter 36
- Firmware 36
- Chapter 4 37
- Understanding the I/O Image 38
- Discrete I/O Image 40
- Size Valid Values 41
- 16-bit -32768 to 32767 41
- Block Transfer I/O Image 43
- Rules for Using Datalinks 44
- Datalink Scaling 45
- Example Ladder Logic 47
- Program Information 47
- ControlLogix Controller 48
- PLC-5 Controller Example 51
- Block Transfer Read 53
- Block Transfer Write 54
- All Controller Versions 55
- Chapter 5 59
- About Block Transfer 60
- Messaging 60
- Formatting Block Transfer 60
- Messages 60
- Executing Block Transfers 63
- Example Programs 64
- Ladder Logic Program 66
- SLC 500 Controller 69
- Examples 69
- Troubleshooting 75
- PORT Status Indicator 76
- MOD Status Indicator 76
- NET A Status Indicator 77
- Viewing Adapter Diagnostic 77
- Viewing and Clearing 79
- Table 6.B Adapter Events 80
- Specifications 81
- Regulatory Compliance 82
- Adapter Parameters 83
- CIP Objects 87
- Common Messages 88
- DPI Device Object 89
- DPI Parameter Object 91
- Descriptor Attributes 93
- Formulas for Converting 94
- Object-Specific Services 94
- DPI error code 95
- DPI Fault Object 101
- Instance Attributes 102
- DPI Alarm Object 103
- DPI Time Object 105
- C-20 CIP Objects 106
- Logic Command/Status Words 107
- Logic Status Word 108
- PowerFlex 700S (Phase II 109
- Control) and 700L (with 109
- 700S Control) Drives 109
- PowerFlex 750-Series Drives 111
- PowerFlex Digital DC Drives 113
- Glossary 115
- D Datalinks 116
- F Fault Action 117
- I Idle Action 118
- L Last RIO Rack 118
- N NVS (Nonvolatile Storage) 118
- R Rack Address 119
- S Scanner 120
- U Update 120
- Z Zero Data 120
- Rockwell Automation Support 128
- Documentation Feedback 128
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