Configuring Sequences with SFC SIMATIC PCS 7 Siemens

Overview Menu bar Step symbols S 1. . . S 4 T 1. .

Sequence Structures Linear Parallel Alternative S 1 T 12 Loop Jump S 1 T

Action and Transition Step active Cycles -> Transition fulfilled Cycles -> SIMATIC PCS 7

Operating Mode Logic for a Given Sequence Control Step Control Modes T T or

Exercise: Sequence Control - Temperature START SP_EXT 70 PV_IN L<33 SP=70 50 30 t

SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7

SFC Operating Mode Logic Command buttons for SFC Test SIMATIC PCS 7 Siemens AG

SFC - Operational Sequence Cycle of SFC Cycle of CFC M SIMATIC PCS 7

External View of SFC SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date:

Sequence Control - Reactor Move to basic position. Reactor C empty and cold Core

Notes SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS

Exercise: Modification to Reactor Sequence Control Move to basic position. Reactor C empty and

Exercise: Adding a Second Sequencer to the Sequential Control HOLD! SFC_Reac. C Transition main-sequence

Hold Sequencer with Data Block for Values to be Saved START (save) NOT_HOLD END

Preprocessing and Postprocessing for Sequencers Possible for every single sequencer SIMATIC PCS 7 Siemens

Creating an SFC Type Several sequencers possible for one SFC type SIMATIC PCS 7

Creating an SFC Instance Operating Modes Operating Mode Commands Command enable Interlock Control strategies

Miscellaneous Reference Data Run Sequence SIMATIC PCS 7 Siemens AG 2003. All rights reserved.

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Overview Menu bar Step symbols S 1. . . S 4 T 1. . . T 4 START Steps Transitions T 1 S 1 T 2 S 3 T 3 S 4 T 4 END SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 2 SITRAIN Training for Automation and Drives

Sequence Structures Linear Parallel Alternative S 1 T 12 Loop Jump S 1 T 12 S 21 S 2 T 13 S 2 S 3 S 2 T 24 T 34 T 23 S 3 T 23 SIMATIC PCS 7 Siemens AG 2003. All rights reserved. S 3 S 4 Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 3 T 2 S 3 S 2 SITRAIN Training for Automation and Drives

Action and Transition Step active Cycles -> Transition fulfilled Cycles -> SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 4 SITRAIN Training for Automation and Drives

Operating Mode Logic for a Given Sequence Control Step Control Modes T T or C T and C C T/T and C with Transition or Confirmation by User with Transition and Confirmation by User with Step specific Confirmation by operator Operating modes Operator commands SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 5 SITRAIN Training for Automation and Drives

Exercise: Sequence Control - Temperature START SP_EXT 70 PV_IN L<33 SP=70 50 30 t H>67 Start step Step enabling condition: Process value PV_IN less than 33? Action: Set setpoint SP_EXT to 70 Step enabling condition: Process value PV_IN greater than 67? SP=50 • • Linear sequence Conditions in transitions Actions in steps Test L<53 SP=30 L<32 END SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 6 SITRAIN Training for Automation and Drives

Sequence Control - Reactor Move to basic position. Reactor C empty and cold Core temperature 90 Degr. cold and empty Process temp reached First component X fill up to Level 20 % Settle Time 2 Min Level >= 20% Tolerance Temp controller reached Speed Monitor Mixer on Open drain valve, mixer off, shut down temperatur controller Speed Monitor Mixer on End Basic pos. reactor empty + cold Second component Y fill up to level 80 % End step Level >= 80% SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 11 SITRAIN Training for Automation and Drives

Exercise: Modification to Reactor Sequence Control Move to basic position. Reactor C empty and cold Core temperature 90° cold and empty Process temp reached First component X fill up to Level 20 % Settle Time 2 Min Level >= 20% Tolerance Temp controller reached Speed Monitor Mixer on Opendrain valve, mixer off, shut down temperature controller Speed Monitor Mixer on End Basic pos. reactor empty + cold Second component Y fill up to Level 80 % End step Level >= 80% SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 13 SITRAIN Training for Automation and Drives

Exercise: Adding a Second Sequencer to the Sequential Control HOLD! SFC_Reac. C Transition main-sequence Transition hold-sequence DB Ensure state Safe state Command output Set operating modes for operation Restore state SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 14 SITRAIN Training for Automation and Drives

Hold Sequencer with Data Block for Values to be Saved START (save) NOT_HOLD END (restore) "Normal" reactor sequencer SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 15 SITRAIN Training for Automation and Drives

Preprocessing and Postprocessing for Sequencers Possible for every single sequencer SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 16 SITRAIN Training for Automation and Drives

Creating an SFC Type Several sequencers possible for one SFC type SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 17 SITRAIN Training for Automation and Drives

Creating an SFC Instance Operating Modes Operating Mode Commands Command enable Interlock Control strategies Step Control Mode Error Display Operation Options Group Display Control strategies SIMATIC PCS 7 Siemens AG 2003. All rights reserved. Date: 11/27/2020 File: ST-PCS 7 SYS_sfc. 18 SITRAIN Training for Automation and Drives