Rockwell-automation 5720 DriveLogix System Manual de usuario Pagina 211
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1 Publication 20D-UM002C-EN-P - November 2003
Chapter
10
Communicating with Devices on a
DH-485 Link
Using This Chapter
The DH-485 protocol uses RS-485 half-duplex as its physical interface.
(RS-485 is a definition of electrical characteristics; it is not a protocol.) You can
configure the RS-232 port of the DriveLogix controller to act as an DH-485
interface.
Configuring Your System for
a DH-485 Link
For the DriveLogix controller to operate on a DH-485 network, you need:
• a 1761-NET-AIC converter for each DriveLogix controller you want to
put on the DH-485 network.
• RSLogix 5000 programming software to configure the serial port of the
controller for DH-485 communications
Step 1: Configure the hardware
The RS-232 port on the front of the DriveLogix controller supports the
requirements you need for the DH-485 network connection.
Connect the controller to an RS-232-to-RS-485 isolator. One possible isolator
is the 1761-NET-AIC interface converter. Refer to Access Procedures on
For information about: See page
Configuring your system for a DH-485 link 10-1
Planning a DH-485 network 10-4
Installing a DH-485 network 10-6
Example 1: DriveLogix controller, ControlLogix controller, and SLC
controller on the same DH-485 network
10-9
IMPORTANT
A DH-485 network consists of multiple cable segments.
Limit the total length of all the segments to 1219m
(4000 ft.).
- DriveLogix System 1
- Rockwell Automation 3
- Table of Contents 5
- Table of Contents 3 7
- Appendix C Access Procedures 8
- Summary of Changes 9
- Introduction 9
- 2 10
- Purpose of this Manual 11
- Getting Started 13
- Connecting Battery 14
- Creating and Downloading 15
- Creating a project 16
- Changing project properties 17
- Adding a local input module1 20
- Adding a local output module 22
- Adding a local analog module 24
- Changing module properties 26
- Viewing I/O tags 27
- Creating other tags 28
- Entering logic 30
- Entering logic (continued) 31
- Downloading a project 32
- Viewing program scan time 33
- What To Do Next 34
- What Is DriveLogix? 35
- Developing programs 36
- Defining tasks 37
- 030252015105 454035 50 6 38
- Defining programs 39
- Defining routines 39
- Using the Event Task 40
- Triggering the Event Task 41
- How the DriveLogix System 43
- Uses Connections 43
- Determining Connections 44
- Consumed Tags 44
- Determining Connections 46
- 1788-DNBO card 50
- Determining Total 51
- Connection Requirements 51
- Local connections 53
- Remote connections 53
- Downloading Projects 54
- Selecting a System 56
- Overhead Percentage 56
- Understanding the 59
- Interface to the Drive 59
- Determining When the 61
- Controller Updates the 61
- Placing and Configuring the 62
- Electronic Keying 63
- Revision 63
- Communication Formats 64
- LogicCmd] 70
- Inhibiting the Drive 71
- Connection 71
- Using DriveExecutive Lite 73
- 6. Select the Setup tab 74
- Controller Mode Change 77
- Accessing Drive Data 81
- Monitoring Drive Data 81
- Monitoring the drive module 83
- Placing Local I/O Modules 86
- Controller Updates I/O 87
- Configuring a DIN Rail 89
- Configuring Local 90
- I/O Modules 90
- Electronic keying 91
- Communication formats 92
- Inhibiting I/O Module 94
- Operation 94
- Accessing I/O Data 97
- 01234567 99
- Monitoring I/O Modules 100
- Monitoring an I/O module 101
- Configuring DriveLogix Motion 105
- Configuring the Drive 106
- Programming the Controller 109
- IMPORTANT 112
- Supported Motion 116
- Commands 116
- EtherNet/IP Link 117
- EtherNet/IP 118
- 1. Start RSLinx 119
- 11. Close RSLinx 122
- Configuring Remote I/O 124
- Accessing remote I/O 126
- Sending Messages 129
- SLC controller: 131
- Mapping addresses 134
- Producing and 136
- Consuming Data 136
- Producing a tag 137
- Consuming a tag 138
- Guidelines for Configuring 139
- Connections 139
- Example 1: DriveLogix 139
- Controller and Remote I/O 139
- Example 2: DriveLogix 141
- Controller to DriveLogix 141
- Controller 141
- Example 3: DriveLogix 145
- Controller to Other Devices 145
- ControlNet Link 147
- 1788-CNC, -CNCR 1788-IN002 148
- 1788-CNF, -CNFR 1788-IN005 148
- Scheduling the ControlNet 156
- DeviceNet Link 181
- Step 1: Install the hardware 182
- I/O Configuration folder 183
- Configure each device 184
- Placing DeviceNet Devices 185
- Accessing DeviceNet 186
- Placing the Communication 189
- Card in Run Mode 189
- Controller and DeviceNet 190
- Example 2: Using a 191
- 1788-CN2DN Linking 191
- Placing DeviceNet devices 193
- Using This Chapter 195
- Configuring Your System for 195
- Serial Port 196
- “DF1” driver 201
- Example 1: Workstation 202
- Directly Connected to a 202
- DriveLogix Controller 202
- Example 2: Workstation 203
- Remotely Connected to a 203
- Controller to a Bar Code 208
- ASCII Device Controller 209
- Configuring user mode 210
- DH-485 Link 211
- Planning a DH-485 Network 214
- Network initialization 215
- Installing a DH-485 216
- Belden 3106A cable 217
- Belden 9842 cable 218
- Example: DriveLogix 219
- Controller, ControlLogix 219
- Controller, and SLC 219
- Controller on the Same 219
- DH-485 Network 219
- Third-Party Link 221
- Communication Format 224
- Connection Parameters 224
- How the Back-up Works 226
- Requirements of the Back-Up 227
- Power-Up and 228
- System Start-up 228
- Developing the DriveLogix 230
- Back-Up Application 230
- Figure 11.3 231
- Figure 11.4 232
- Figure 11.5 233
- Reading Back-up State Rung 234
- Reading Back-up Status 236
- Using Indicators to 237
- Check Status 237
- Development and 237
- Debugging Tips 237
- Appendix 239
- Using This Appendix 239
- 1756-BA1 Battery 241
- Serial Cables 242
- DB-9 right-angle or straight 243
- 8-pin, mini-DIN cable end 243
- DriveLogix Controller LEDs 244
- Using this Appendix 245
- Connecting the Battery 245
- Storing Replacement 246
- Batteries 246
- Estimating Battery Life 246
- Replacing a Battery 247
- If: Then: 248
- No Go to the next step 248
- Access Procedures 251
- Removing Cover(s) 252
- Removing Cover (For High 253
- Power Drives) 253
- Replacing Cover(s) 254
- Continued 255
- Replacing Cover (For High 256
- Numerics 257
- 3 259
- 4 260
- 5 261
- User Manua 263
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