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SCADA System SCADA System Application Guide Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation® sales office or online at http://www.ab.com/manuals/gi) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment. The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams. No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual. Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. is prohibited. Throughout this manual we use notes to make you aware of safety considerations. Identifies information about practices or circumstances WARNING that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss. Identifies information that is critical for successful IMPORTANT application and understanding of the product. Identifies information about practices or circumstances ATTENTION that can lead to personal injury or death, property damage, or economic loss. Attentions help you: • identify a hazard • avoid a hazard • recognize the consequence SHOCK HAZARD Labels may be located on or inside the drive to alert people that dangerous voltage may be present. BURN HAZARD Labels may be located on or inside the drive to alert people that surfaces may be dangerous temperatures. Summary of Changes The information below summarizes the changes to this manual since the last printing. To help you find new and updated information in this release of the manual, we have included change bars as shown to the right of this paragraph. For information on See Removing Configuring Classic PLC-5 Processors with NA 1785-KE Modules chapter Add in additional publications Preface Designing communication for DF1 Radio Modem 1-17 through 1-19 Modbus RTU 3-46 through 3-57 Data Logging 3-58 through 3-69 Conditions that will erase the data retrieval file 3-69 DF1 Radio Modem 4-7 through 4-8 Configuring a Radio Modem station 4-27 through 4-32 Rockwell Automation modems 8-3 through 8-4 Configuring modems for PLC-5, SLC, and Logix processors 10-3 Configuring modems for MicroLogix 1100/1200/1500 10-4 controllers Communicating over the telephone line 10-4 through 10-8 Remotely programming Allen-Bradley processors over a Chapter 11 telemetry network DF1 Radio Modem B-7 Third party suppliers Appendix C 1 Publication AG-UM008C-EN-P - February 2005 2 Summary of Changes Publication AG-UM008C-EN-P - February 2005 Table of Contents Preface What SCADA Information Is Available?. 1-1 Audience . 1-1 Contents of this Manual. 1-2 Terms. 1-3 Address Conventions. 1-3 Addresses . 1-3 Related Publications . 1-4 Chapter 1 Designing Communication Chapter Objectives . 1-1 Choosing a Polling Mode for DF1 Half-Duplex Master . 1-2 Message-Based Polling Mode . 1-2 Standard Polling Mode . 1-3 About Polled Report-by-Exception . 1-4 About Slave-to-Slave Messaging . 1-5 Addressing Tips . 1-6 Communication Scheme Design Using Standard-Mode . 1-8 Designing a Polling Scheme . 1-11 Planning for Timing Issues . 1-13 Design Considerations . 1-13 Communication Scheme Design Using Message-Based Mode . 1-15 Designing Communication for DF1 Full-Duplex Protocol. 1-16 Designing Communication for DF1 Radio Modem Protocol. 1-17 Determining When to Use DF1 Radio Modem Protocol . 1-17 What to Do Next? . 1-19 Chapter 2 Configuring Enhanced PLC-5 Chapter Objectives . 2-1 Processors Overview . 2-1 Installing the Processor . 2-2 Configuring a DF1 Half-Duplex Standard Mode Master Station . 2-3 Define the Communication Driver Characteristics . 2-5 Displaying System (Master) Channel Status . 2-7 Create Station Lists. 2-8 Monitor Active Stations . 2-10 Configuring a DF1 Half-Duplex Message-based Mode Master Station . 2-11 Configuring the Processor as a Slave Station. 2-15 Displaying Slave System Channel Status . 2-18 1 Publication AG-UM008C-EN-P - February 2005 2 Table of Contents Configuring the Processor as a Station on a Point-to-Point Link . 2-20 Displaying Point-to-Point System Channel Status . 2-22 Messaging. 2-23 Master Station to Slave Station . 2-23 Polled Report-by-Exception . 2-23 Processor-to-Processor . 2-24 Considerations When Configuring MSG Control Blocks . 2-25 Example MSG Control Blocks. 2-26 Chapter 3 Configuring MicroLogix Chapter Objectives . 3-1 1100/1200/1500 Controllers Overview . 3-2 Installing the Controller. 3-2 MicroLogix 1200/1500 Channel 0 Cable Pinouts - User Supplied Optical Isolator . 3-3 MicroLogix 1200/1500 Channel 0 Cable Pinouts - Allen-Bradley Supplied Optical Isolator. 3-4 MicroLogix 1500 LRP Channel 1 Cable Pinouts . 3-5 Using Modems that Support DF1 Communication Protocols 3-6 Dial-up Phone Modems . 3-6 Leased-Line Modems . 3-7 Radio Modems. 3-7 Line Drivers. 3-7 Modem Control Line Operation . 3-8 DF1 Full-Duplex . 3-8 DF1 Half-Duplex Slave. 3-8 DF1 Half Duplex Master. 3-9 DF1 Radio Modem. 3-9 Configuring DF1 Half-Duplex Channel 0 Parameters. 3-11 RTS Send Delay and RTS Off Delay . 3-11 Configuring a Standard-Mode DF1 Half-Duplex Master Station . 3-12 Minimum DF1 Half-Duplex Master Channel 0 ACK Timeout. 3-14 Determining Minimum Master ACK Timeout . 3-15 DF1 Half-Duplex Master Channel Status . 3-17 Monitor Active Stations. 3-18 Configuring a Message-based Mode DF1 Half-Duplex Master Station . 3-19 Configuring a Slave Station . 3-22 Configuring Poll Timeout . 3-25 DF1 Half-Duplex Slave Channel Status . 3-25 Configuring a Radio Modem Station. 3-27 DF1 Radio Modem Channel Status . 3-30 Configuring the Store & Forward Table. 3-31 Publication AG-UM008C-EN-P - February 2005 Table of Contents 3 Configuring a Station on a Point-to-Point Link . 3-33 DF1 Full-Duplex Channel Status . 3-35 DF1 Messaging . 3-36 Master Station to Slave Station . 3-36 Polled Report-by-Exception . 3-36 Processor-to-Processor . 3-37 Considerations When Configuring MSG Control Blocks. 3-37 Example MSG Control Blocks . 3-42 Modbus RTU Protocol . 3-46 Modbus RTU Master. 3-46 Modbus RTU Slave. 3-47 Modbus RTU Master Configuration . 3-48 Modbus RTU Master Configuration . 3-49 Modbus RTU Slave Configuration . 3-50 Modbus Slave Memory Map . 3-51 Modbus Commands . 3-53 Modbus Error Codes . 3-54 Configuring a Modbus Message . 3-56 Data Logging . 3-58 Queues and Records . 3-58 Example Queue 0 . 3-59 Example Queue 5 . 3-60 Configuring Data Log Queues . 3-62 DLG - Data Log Instruction. 3-64 Data Log Status File . 3-64 Retrieving (Reading) Records . 3-66 Accessing the Retrieval File . 3-67 Retrieval Tools. 3-67 Information for Creating Your Own Application . 3-68 Conditions that Will Erase the Data Retrieval File . 3-69 Chapter 4 Configuring SLC 5/03, 5/04, and Chapter Objectives . 4-1 5/05 Processors Overview . 4-2 Installing the Processor . 4-2 Using Modems that Support DF1 Communication Protocols 4-3 Dial-up Phone Modems . 4-3 Leased-Line Modems . 4-3 Radio Modems. 4-4 Line Drivers. 4-4 Modem Control Line Operation . 4-5 DF1 Full-Duplex . 4-5 DF1 Half-Duplex Slave. ..
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