Rockwell-automation 1203-EN1 EtherNet/IP-to-SCANport Module User Manual Page 68
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6-4 Using Explicit Messaging
There are five basic events in the Explicit Messaging process. The details
of each step will vary depending on the controller. Refer to the
documentation for your controller.
Important: There must be a request message and a response message
for all Explicit Messages, whether you are reading or
writing data.
Figure 6.2 Explicit Message Process
Event
1. You format the required data and set up the ladder logic program to
send an Explicit Message request to the scanner or bridge module.
2. The scanner or bridge module transmits the Explicit Message
Request to the slave device over the EtherNet/IP network.
3. The slave device transmits the Explicit Message Response back to
the scanner. The data is stored in the scanner buffer.
4. The controller retrieves the Explicit Message Response from the
scanner’s buffer.
5. The Explicit Message is complete.
Performing Explicit Messages
JOG
ESC SEL
➋
➌
➍
➎
➊
Set up and send Explicit
Message Request
Complete Explicit
Message
Retrieve Explicit
Message Response
- 1203-EN1 1
- EtherNet/IP-to 1
- SCANport Module 1
- Important User Information 2
- Summary of Changes 3
- S-ii Summary of Changes 4
- Table of Contents 5
- About This Manual 9
- Rockwell Automation Support 10
- Technical Product Assistance 11
- P-4 About This Manual 12
- Getting Started 13
- Features 14
- Compatible Products 15
- Required Equipment 15
- Safety Precautions 16
- Quick Start 17
- 1-6 Getting Started 18
- Installing the Module 19
- Serial SCANport 20
- Minimum Spacing 21
- DIN Rail Mounting 22
- Applying Power 24
- Commissioning the Module 26
- Configuring the Module 27
- Using DriveExplorer Software 28
- Using BOOTP 29
- To disable the BOOTP feature 31
- Setting the Data Rate 33
- Setting the I/O Configuration 33
- Setting a Fault Action 39
- To change the fault action 40
- Setting Web Features Access 41
- Resetting the Module 42
- Configuring the Module 3-17 43
- 3-18 Configuring the Module 44
- Chapter 4 45
- Saving the Configuration 51
- Using I/O Messaging 53
- Understanding the I/O Image 54
- Using Reference/Feedback 56
- Using Datalinks 57
- Example Ladder Logic Program 57
- 5-6 Using I/O Messaging 58
- RSLogix 5000 Configuration 59
- Using I/O Messaging 5-9 61
- 5-10 Using I/O Messaging 62
- Using I/O Messaging 5-11 63
- Example Datalink Data 64
- Using Explicit Messaging 65
- Formatting Explicit Messages 66
- Using Explicit Messaging 6-3 67
- Performing Explicit Messages 68
- Message Formats 69
- Ladder Logic Rungs 69
- Source and Destination Data 69
- Example Message Format 70
- Example Ladder Logic Rung 71
- Example Destination Data 71
- Example Source Data 73
- Example Data 76
- 6-16 Using Explicit Messaging 80
- Troubleshooting 81
- PORT Status Indicator 82
- MOD Status Indicator 83
- Net A Status Indicator 84
- Net B Status Indicator 85
- Viewing and Clearing Events 86
- Troubleshooting 7-7 87
- 7-8 Troubleshooting 88
- Chapter 8 89
- Title Bar on Module Web Pages 91
- TCP/IP Configuration Web Page 94
- Specifications 99
- Environmental 100
- Regulatory Compliance 100
- Module Parameters 101
- B-2 Module Parameters 102
- Module Parameters B-3 103
- B-4 Module Parameters 104
- 01234576 105
- B-8 Module Parameters 108
- Module Parameters B-9 109
- EtherNet/IP Objects 111
- Identity Object 112
- Identity Object (Continued) 113
- Assembly Object 114
- Assembly Object (Continued) 115
- Register Object 116
- Register Object (Continued) 117
- Parameter Object 118
- Parameter Object (Continued) 119
- Parameter Group Object 121
- Instance Attributes 122
- Services 122
- (Continued) 122
- PCCC Object 123
- PCCC Object (Continued) 124
- SCANport Device Object 128
- SCANport Parameter Object 130
- Descriptor Attribute 131
- Formulas for Converting 132
- Common Services 132
- Object Specific Services 132
- SCANport Fault Object 133
- SCANport Warning Object 135
- TCP/IP Interface Object 137
- Ethernet Link Object 139
- (Continued) 140
- Logic Command/Status Words 141
- Logic Status Word 142
- N-File Addresses 143
- E-2 N-File Addresses 144
- Commands 145
- Data Word 3 146
- Parameter Value Read 147
- Parameter Value Write 148
- 769 — Message OK 149
- –31999 — Message Error 149
- Parameter Read Full 150
- 768 — Message OK 151
- –32000 — Message Error 151
- Message Operation 152
- Product ID Number Read 153
- 256 — Message OK 154
- –32512 — Message Error 154
- Data File Format 155
- NVS Functions 160
- 770 — Message OK 160
- –31998 — Message Error 160
- 1792 — Message OK 161
- –30976 — Message Error 161
- Fault Queue Entry Read Full 162
- Fault Queue Size 164
- 1793 — Message OK 165
- –30975 — Message Error 165
- 1794 — Message OK 166
- –30984 — Message Error 166
- Glossary 169
- D Data Rate 170
- F Fault Action 171
- G Gateway 172
- H Hardware Address 172
- I Idle Action 172
- L Logic Command/Logic Status 173
- M Master-Slave Hierarchy 174
- N Non-Volatile Storage (NVS) 174
- R Reference/Feedback 175
- S Scanner 175
- Z Zero Data 177
- G-10 Glossary 178
- Numerics 179
- I-6 Index 184
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