Control in Field. 15 th December, NSE Complex, Goregaon /V42/Bgo Control in the Field 1

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1 Single Control Loops with Control in the Field FFIC Conference Control in Field 15 th December, 2010 Industrial Automation ti India 2010 NSE Complex, Goregaon Mumbai (India) Samson /V42/Bgo Control in the Field 1

2 Product overview P Process V Valves l Control Valves Positioner and Accessories /V42/Bgo Control in the Field 2

manufacturer, software revision, AO Transducer Block Building up the connection to the hardware (sensor/actor I/O function blocks)

3 Technology Function block model Resource Block Contains all characteristic data of the device E.g. manufacturer, software revision, AO Transducer Block Building up the connection to the hardware (sensor/actor I/O function blocks) Function Blocks MAI Multiple Input DO 1/2 Digital Output Output Describe the function of a device Interface to the fieldbus DI 1/2 Digital Manufacturer decide which types of FB are Input implemented The key for Control in the Field Output MAO Multiple PID Controller IS Input Selector /V42/Bgo Control in the Field 3

Technology Function block model AI Input AI Input AI Input ML Manual Loader DI Discrete Input MAI Multiple AI PID Control PID Control PID Control AO

3730-5 positioner can be used for: AO to travel a control valve DO to close/open an on/off valve or to start a Partial Stroke Test DI to read the

4 Technology Function block model AI Input AI Input AI Input ML Manual Loader DI Discrete Input MAI Multiple AI PID Control PID Control PID Control AO Output Input AO Output AO Output DO Discrete Output Output AO Output PID Control Cascade Control Manual Control For example the FBs of SAMSON type positioner can be used for: AO to travel a control valve DO to close/open an on/off valve or to start a Partial Stroke Test DI to read the discrete valve position or the condensed state (NE107) MAI to read the actual valve position or time for next auto-started PST /V42/Bgo Control in the Field 4

Technology - Link Active Scheduler (LAS) The LAS is managing the devices and their

devices by recognition of new devices and devices that have been removed or that are

deterministic exchange of process data Allocation of send rights (tokens) to devices

5 Technology - Link Active Scheduler (LAS) The LAS is managing the devices and their communication on the bus Network administrator Manages the Live List of all attached devices by recognition of new devices and devices that have been removed or that are not longer communicating Generates and manages the Schedule for the fixed and deterministic exchange of process data Allocation of send rights (tokens) to devices for unscheduled data exchange Time synchronization of field devices /V42/Bgo Control in the Field 5

Technology ogy LAS Redundancy da Link Master

Master devices available in one segment,

Master LAS H1 Fieldbus (IEC 61158-2 with

Conditioner with termination Backup Link

6 Technology ogy LAS Redundancy da Link Master devices (with LAS function) Basic devices (without LAS Function) HSE (High Speed Ethernet with up to 12 MBit/s) Several Link Master devices available in one segment, only one can become the LAS PLC / Link Master LAS H1 Fieldbus (IEC with 31,25 kbit/s) T Power Supply / Power Conditioner with termination Backup Link Master (LAS) Basic Device Basic Device /V42/Bgo Control in the Field 6

Technology LAS Redundancy Event of failure of the primary LAS HSE (High

traffic will resume uninterrupted PLC / Link Master LAS Increased

Power Supply / Power Conditioner with termination H1 Fieldbus (IEC 61158-2

7 Technology LAS Redundancy Event of failure of the primary LAS HSE (High Speed Ethernet Backup LAS will take over with up to 12 MBit/s) Network traffic will resume uninterrupted PLC / Link Master LAS Increased reliability and availability Failure / lost communication to controller Power Supply / Power Conditioner with termination H1 Fieldbus (IEC with 31,25 kbit/s) T Backup Link Master (LAS) Basic Devices /V42/Bgo Control in the Field 7

8 Single loop control in DCS & in the field Control in the field Loop Control in DCS Loop Control in pressure transmitter Loop Control in positioner /V42/Bgo Control in the Field 8

9 Single loop control o in DCS & in the field Loop control in DCS 1. AO and AI are executed 2. PID is communicating OUT to AO (values calculated in upstream cycle) 3. AI is communicating OUT to PID 4. AO is communicating BKCAL_OUT to PID 5. Controller is executing PID start unscheduled communication AO is moving into committed position in next cycle /V42/Bgo Control in the Field 9

10 Single loop control o in DCS & in the field Loop control in e.g. pressure transmitter 1. AI are executed 2. PID is executed 3. PID is communicating OUT to AO 4. AO is executed and moving valve into committed position 5. AO is communicating BKCAL_OUT to PID Start unscheduled communication /V42/Bgo Control in the Field 10

11 Single loop control o in DCS & in the field Loop control in positioner start unscheduled communication 1. AI are executed 2. AI is communicating OUT to PID 3. PID is executed 4. AO is executed and moving valve into committed position /V42/Bgo Control in the Field 11

12 Single loop control o in DCS & in the field Loop control in positioner Source: ARC White paper The business value proposition of CIF /V42/Bgo Control in the Field 12

13 Single loop control o in DCS & in the field Summary: High flexibility for automation strategies Relieved ed bus communication with CIF Relieved controller with CIF The faster the execution time of the function blocks the faster the loop Improved control performance by CIF Faster sample times Shorter latency (delays) in the read-execute-write cycle E.g. faster reaction to control disturbances /V42/Bgo Control in the Field 13

14 Single loop control o in DCS & in the field Improved control performance by CIF, e.g. faster reaction time Source: ARC White paper The business value proposition of CIF /V42/Bgo Control in the Field 14

15 Summary CIF provides increased reliability and availability CIF variability depends on the used devices Devices with more function blocks offer more flexibility Most of the single control loops can be realized in the field CIF can provide better control for fast process loops like pressure and flow loops In terms of speed and ability to reject disturbances Independent study of Industrial Systems and Control Ltd. (ICS) Control in the Field: Analysis of Performance Benefits /V42/Bgo Control in the Field 15

16 Thank You for your attention! /V42/Bgo Control in the Field 16

Foundation Fieldbus Control in the Field (CIF)

Foundation Fieldbus Control in the Field (CIF) Name : Harendra G. Mistry Job Title : Chief Engineer Company : Tecnimont ICB FFIC : Automation 2011 Mumbai Foundation Fieldbus Technology Benefits Benefits