Rockwell-automation 1768-EWEB EtherNet/IP Web Server Module User Manua Bedienungsanleitung Seite 160
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Publication ENET-UM527E-EN-P - October 2006
160 Socket Interface
Troubleshoot Socket
Applications
To help debug and troubleshoot applications, the socket interface
provides a set of web pages, located in the web server’s Advanced
Diagnostics folder.
Debugging Hints and Tips
Web Page Description
Socket Object Diagnostics Displays information about on each existing instance:
• Instance number
• Socket type – client, server, or listen
• Local and remote ports and IP addresses
• Send and receive buffer sizes
• Socket up time and inactivity time
• Socket state and last error state
Socket Object Statistics Displays attribute settings for each instance
Socket Object Log Displays a log of service requests (maximum of 50 log entries):
• Service requests made to the socket object
• For each request, shows parameters passed and the result of service (success / failure)
You can enable/disable logging for some services by setting Class attribute #8 (Log
Enable). See Socket Object Class Attributes on page 158.
Category Consideration
Web server module Make sure the web server module has a valid IP address. Also, if you communicate with
devices on different subnets, configure the web server with a valid subnet mask and
gateway address.
CreateSocket service Make sure the Destination tag is of type of DINT.
After creating the socket with the CreateSocket service, make sure you use the instance
number that CreateSocket returns in the subsequent socket services you call.
MSG instruction Make sure the Source Element is of a type that matches the request parameters for the
requested service. Also make sure the Source Length is the correct length for the service
parameters.
There is a limit to the number of active MSG instructions in a Logix controller. If a MSG
instruction is enabled and exceeds the maximum number of active MSG instructions, the
MSG instruction receives an error (.ER bit set).
OpenConnection service Make sure the Source Length includes the size of the Timeout parameter + Address Length
parameter + the Length of the address itself.
- EtherNet/IP Web 1
- Server Module 1
- Important User Information 2
- Summary of Changes 3
- Table of Contents 5
- 6 Table of Contents 6
- Table of Contents 7 7
- Appendix A 8
- Connect Over Ethernet 8
- Appendix B 8
- Table of Contents 9 9
- 10 Table of Contents 10
- Who Should Use This 11
- Publication 11
- Conventions 11
- About This Publication 11
- 12 12
- Getting Started 13
- 14 Getting Started 14
- Getting Started 15 15
- 1756-EWEB Installation 17
- 1768-EWEB Installation 18
- System Requirements 19
- Access the Module Using 19
- Your Web Browser 19
- Default Access: 20
- User Name: Administrator 20
- (not case sensitive) 20
- Password: 20
- (leave blank, no password) 20
- Navigate the Web Server 22
- Use the Web Server 23
- Access a Data View 24
- Getting Started 25 25
- Configure Email 26
- Configure the Time Server 27
- Enable/disable Other Services 28
- 30 Getting Started 30
- Web Server Module 31
- Assign Network 32
- Parameters When the 32
- Network Has a DHCP 32
- Parameters Without A 35
- DHCP Server 35
- RSWho Icon 38
- Duplicate IP Address 40
- Detection 40
- IP Address Swapping 42
- DNS Addressing 42
- Verify Network Settings 44
- Manage Module Settings 47
- Modify Network Parameters 49
- Manage Server Settings 51
- Display the Server Log 54
- About This Chapter 55
- Data Views Overview 55
- Tags Supported In Data Views 56
- Performance Estimates 56
- Create a Data View 57
- Add Tags to a Data View 58
- Monitor Data Views and 59
- Tag Data 59
- Sort Data Views 60
- Edit a Data View 61
- Create Data Views Offline 62
- Use an External 63
- Application to Access 63
- Data Views 63
- Example: Data View XML 64
- Send Email 67
- Configure the Web Server 69
- Send an Email Via the Web 70
- Send an Email with a 71
- Controller-initiated 71
- Message Instruction 71
- Enter the Ladder Logic 72
- Configure the MSG Instruction 73
- 74 Send Email 74
- Enter the Text of the Email 75
- Possible Email Status Codes 75
- 76 Send Email 76
- User Accounts and 77
- Privilege Classes 77
- Configure Access Limits 78
- For Web Pages 78
- In This Field Do This 79
- ’/user/Web/mypage.html’ 79
- Create User Accounts 80
- Recover with Unknown 81
- Password 81
- Access the Web Server’s 83
- File System 83
- File Names and Types 85
- Back Up the File System On 87
- Back Up Files 88
- Restore Files 89
- This is the /user directory 90
- Create Custom Web Pages 91
- Develop a Custom Web 93
- ASP Function Calls 93
- Read Controller Tags 94
- Read CIP Data 95
- Update Control System Data 96
- Retrieve Information About 97
- Javascript Libraries 98
- Web Page Forms and POST 102
- Handlers 102
- XML."); 103
- IMPORTANT 103
- For example, this code: 104
- HTML stream 110
- For example: 110
- Monitor Diagnostics 113
- Diagnostics Overview 114
- Network Settings 116
- Message Connections 117
- Ethernet Statistics 119
- Over Ethernet 121
- TCP Connections 123
- Additional Resources 123
- Socket Interface 125
- Architecture 126
- Socket Interface 127 127
- OpenConnection 130
- Communicate With the 132
- Socket Object Via a MSG 132
- Instruction 132
- Message Transfer Sizes 133
- Service Timeouts 134
- MSG Instruction Timeouts 134
- Socket Instance Timeouts 134
- Programming 135
- Considerations 135
- 136 Socket Interface 136
- Application Messages and TCP 137
- Partial Reads 137
- Partial Writes 138
- Socket Object Services 140
- CreateSocket 141
- MSG Source Length 142
- MSG Destination Element 142
- MSG Source Element 144
- AcceptConnection 146
- MSG Configuration Parameters 148
- MSG Source Element: 149
- DeleteSocket 153
- DeleteAllSockets 154
- Possible Error Codes for 155
- Socket Services 155
- Decimal Hexadecimal 156
- Socket Attributes 157
- 158 Socket Interface 158
- Socket Interface 159 159
- Troubleshoot Socket 160
- Applications 160
- 162 Socket Interface 162
- 164 Index 164
- Index 165 165
- 166 Index 166
- How Are We Doing? 167
- BUSINESS REPLY MAIL 168
- Rockwell Automation 170
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