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W05 basics of setting up Profibus process automation networks
This document summarizes a presentation on setting up Profibus PA networks. It discusses what Profibus PA is, the benefits of using a fieldbus network, the key system components, and rules for configuring a Profibus PA network. The presentation covered topics such as what comprises a Profibus PA network, how to add and remove devices, and tools for configuring and managing devices. It concluded with a live demonstration of network configuration using tools like Pactware and Simatic PDM.
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W05 basics of setting up Profibus process automation networks
- 1. W05 Basics ofsetting up PROFIBUS-PA networks Martin Ruck Siemens Jason Nicholl Phoenix Kris Hardaker United Utilities
- 2. Basics of settingup a Profibus PA Network 1. What is Profibus PA 2. Benefits of using a Fieldbus 3. System Components 4. Profibus PA Rules 5. Network Configuration Agenda Demonstration Network Configuration • Jason Nicholl - Phoenix • Pactware FDT/DTM • Kris Hardaker - United Utilities • Simatic PDM EDD
- 3. PA =PA =PProcessrocess AAutomationutomation Fieldbus tailored for the needs of the process industry : MBP “Manchester Coded and Bus Powered” IEC 61158-2 Bus powered Intrinsically safe Devices can be configured over the bus Slower speed 31.25 Kbit/s What is PROFIBUS PA FISCO RS485 MBP
- 4. Why Use aFieldbus Normal Operating Range 4- 20mA Signals below 4mA indicate instrument failure 0mA indicate open circuit Signals above 20mA indicate instrument failure 4 – 20mA Scaling and Accuracy Fieldbus Motivation Profibus PA 4- 20mA
- 5. Benefits of Usinga Fieldbus Reliable data from Field devices More accurate readings with regards to resolution More diagnostics to prove instrument functionality Data presented in same format Remote configuration Nuisance alarms. Good Unchecked Configuration error Fault Maintenance required Advance maintenance warning Process error Communication interrupted Simulation Communication good Device has no diagnosticsDevice passive or not assigned
- 6. System Components Controller PROFIBUS DPSlaves PROFIBUS PA DP/PA- Link/Coupler Industrial Ethernet / Fast Ethernet Profibus DP Physical Layer Modified RS485 speeds between 9.6kbit/s and 12Mbit/s Profibus PA Physical Layer Manchester Encoded Bus Powered (MBP) (IEC 61158-2) 31.25kbits/s
- 7. Converting from ProfibusDP to PA Coupler Link + Coupler Low speed connection High speed connection # Manufacturer specific e.g. PF SK1 93.75Kbits •Lower Cost •Profibus DP Side is slowed to 45.45kbaud # •Coupler is Invisible to the network •Can only have 124 devices (DP &PA addresses are combined) •Profibus DP side can be any speed (12 Meg) •Link Module takes one DP address •Up to 5 couplers •Can have 1000’s devices •Can have faster update times Simple monitoring Control 4 5 6 7 8 9 4 5 6 4 5 6 5 6
- 8. System Components PA TopologyPACables Spur lengths PA Termination •2 Terminators at extreme ends
- 9. System Components M12 ConnectorsT Junctions Junction Boxes Active Field Distributors
- 10. Add new devices PROFIBUSPA Automatic bus termination AFD Bus termination Enhance line Enhance ringM There is no need to reserve spare ports of the AFDs ! AFDAFDAFD AFD DP/PA Link Profibus PA Active field distributors AFD
- 11. Profibus PA Activefield distributors AFD Increasing availability and simplifying installation Robust Network
- 12. Design, Installation andCommissioning 12 1. Spur Lines and Lengths must correlate 2. Use Class A, PROFIBUS PA cable and use only one cable manufacturer 3. Total cable length depends on coupler used, can not exceed 1900 meters for none IS 4. Ensure that there is more than 9V at each slave 5. Total number of devices depends on the current draw. 6. Terminate at the extreme ends of the segment 7. Follow recommended grounding practices 8. Intrinsically Safe (IS) design affects maximum spur lengths and total length. 9. Ensure spur length does not exceed the trunk line length Network Design Tools •Segment Voltage •Cycle times
- 13. Configuration - GSDFiles (General Station Data) 13 Controller PROFIBUS PA Profibus Configuration Tool The GSD File holds information about the Profibus Device •Profibus Ident •Supported Baud rates •Diagnostics supported •Module type and data Length Cyclic Communications Device -Value / Status
- 14. Device Management Tools SimaticPDM AMS Pactware Fieldcare Configuration Parameter interaction Diagnostics Device Management Tool Class 2 Master PROFIBUS PA EDD or FDT/DTM EDD – Electronic Device Description •Device Parameters •Text File •Optimal for devices medium complexity •Standardised EDDL language in IEC 61804-2 FDT – Field Device Tool DTM – Device Type Manager •Device Parameters •Software (DTM Device Manager) •Optimal for highly complex devices Acyclic Communications Parameterisation
- 15. Live Demonstrations Pactware SimaticPDM Kris Hardaker Senior Engineer Site Systems Engineering United Utilities Jason Nicholl Phoenix Contact Development and Manufacturing, Inc. Business Development Manager
- 16. Contact Basics of settingup a Profibus PA Network Jason Nicholl Business Development Manager Phoenix Contact Development and Manufacturing, Inc I/O and Networks Business Unit, Americas Tel: 1-800-888-7388 x3720 Email: JNicholl@phoenixcon.com Kris Hardaker Senior Engineer Site Systems Engineering United Utilities T: 01925 731037 (internal 31037) Email: Kris.Hardaker@uuplc.co.uk Martin Ruck Product Manager Process Instrumentation Siemens Industry GB&I Mobile: +44 (0) 7808 824913 Email: martin.ruck@siemens.com Thank you for your time