1. Introduction to FOUNDATIONTM FIELDBUS (FF)By Rajesh S March 16th 2012 Friday1 02:32:31

2. FOUNDATION FIELDBUS Two-way digital communications systemdesigned for interconnecting smart fielddevices and control systems. Control/Monitoring functions on field mounteddevices. High speed H1 31.25 Kbit/s HSE 100 Mbit/s By Fieldbus Foundation202:32:31 3. HART Vs FieldbusHART Uses 4-20mA signal. Speed - 1200 bps Ability to provide diagnostics for the device only , has noknowledge of other devices Poll - HART status periodically Multidrop 15 devices but slow.Field bus: Advanced diagnostics - Eg: Process Monitoring andMachinery Health monitoring. Push - with events latched and time stamped in the deviceand sent to device. True multidrop 32 devices3 02:32:31 4. Advantages of FieldbusFoundation Interoperability with other Field bus device. High speed Advanced DiagnosticsTypes H1 31.25 Kbit/s interconnects fieldequipment such as sensors, actuators andI/O. HSE 100 Mbit/s High speed Ethernet provides integration of high speed controllers.4 02:32:31 5. OSI Model Vs Fieldbus Model5 02:32:31 6. Fieldbus ModelUser Layer: Function Blocks Network Management (NM) System Management (SM)6 02:32:31 7. Fieldbus Model Application Layer: Fieldbus Message Specification (FMS) Messagestructure Fieldbus Access Sub layer provides virtualcommunication channel , Addresses. Data Link Layer Error coding, parity checking. Physical Layer Wiring.702:32:31 8. HSE Device Types Linking device Links H1 networks to the HSEnetwork. Ethernet device Execute function blocks andmay have some conventional I/O. Host device - an operator workstation or an OPCserver. Gateway device (GD) - interfaces other networkprotocols such as Modbus, Device Net orProfibus802:32:31 9. HSE Device FDA Agent HSE System Management Kernel(SMK) HSE Network Management Agent(NMA) Virtual Field Device (VFD)9 02:32:31 10. Field Device Access (FDA) Convey SM services over UDP FMS Services over UDP/TCP Allows HSE and H1 field devices, conventionalI/O devices, and non-FF I/O devices to beconnected to the HSE through a linking or agateway device.1002:32:31 11. HSE System Management Integrates devices on an HSE network into a coherent communication system Unique, permanent identity for device Maintains version control Function block schedules Devices added/removed without affecting other devices11 02:32:31 12. HSE Network Management HSE host systems to conduct managementoperations over the HSE network with theirassociated devices with an HSE interface. Configuring the H1 Bridge Loading the HSE Session List HSE Session Endpoint Logical communication channel Loading the HSE VCR List communicationrelationship used to access VFDs. Fault Detection Monitoring.12 02:32:31 13. FDA Components FDA Session An application relationship used for request/response,publisher/subscriber. Identified by their source and destination endpointaddresses (IP addresses plus UDP/TCP port numbers) FDA Agent Entity within an HSE Device - uses the services provideHSE access to VFDs and SMKs (Within HSE device orother H1 devices)13 02:32:31 14. FDA Agent14 02:32:31 15. Application Processes (AP) Application Processes (AP) Entities within devices that perform a related set offunctions, such as function blockprocessing, network management, and systemmanagementFunction Block Application Processes (FBAP) Automated manufacturing and process controlsystems perform a variety of functions Range of functional models, each addressing adifferent need.1502:32:31 16. Virtual Field Devices (VFDs) Network visible objects of an Application Process Descriptions of network visible objects are contained within the Object Dictionary (OD) within the VFD. OD : composed of a series of entries, each describing an individual object and its attributes. OD entries are assigned an index which is used to obtain the description of the object from the OD. The OD index is also used to access the object itself. For each VFD there is exactly one Object Dictionary.16 02:32:31 17. Virtual Field Devices (VFDs) Virtual Communication Relationships Network visible objects are accessible throughVCRs using FMS Services Communication relationship to access VFDs17 02:32:31 18. Few SM and FMS services SM Device Annunciation and Assignment SM Device Identification Header SM Tag QueryService-Specific Parameters + User Data(optional) FDA Open Session Trailer (optional) FMS Initiate FMS Abort FMS GetOD LAN Redundancy Get information LAN Redundancy Put information1802:32:31 19. More on Next Session1902:32:31 20. Thank You20 02:32:31