Extracting return operation from a parallel sequence in a routing.

Hi all
I need to extract data on some existing parallel sequences in routings from R3. One of the fields i need is the return operation for each parallel sequence.
I was hoping the data would be in PLFL which contains most of the sequence information I need. But alas it doesn't have the return operation.
Checking with F1 and the tech button shows me that the field i want is PLFLD-VORNR2. But PLFLD is a structure that I can't get to.
Does anyone know how to extract this info from the system?
Regards
Simon Pedersen

Hi Simon,
The field that you're looking for is PLFL-BKNT2 (for the return operation). Pay attention that in this field there's a number that is representing the operation node number, not the number that you see in the routing screen.
Regards,
Mario

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Artur,
The logic of parallel sequence is bit different from what you expect.
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Edited by: SAP PP Consultant on Jun 8, 2009 10:21 AM

Error in schedulinq parallel sequences with flow production operations

We have a routing with a standard sequence with operations in wich we have set "Continuous flow prod"
and "Min. Send-Ahead Qty=1".
We have a parallel sequence as well with operations set in the same way "Continuous flow prod"
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in the parallel sequence but the results are howewer not correct.
In conclusion the schedulation of continuous flow production operations
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Thank you.

Hi,
I tried with 5 ops 10, 20, 30 ,40,50 ( same work center wc1)
Set up time 1, Process time 1min for 1 pc
set the continuous flow prodn i at op 20 with min send ahead qty 1
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set up time was 2 min for all work centers( same work center wc2) and proc time
time is 1 min for 1 pc
In that set the continuous flow prodn at op 20 with min send ahead qty 1
sceduling type was forward
.Alignment key was 2 for both std seq and parallel seq .
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at 6.47 am where as in parallel seq op 20 starts at 6.11 am and op 40 ends at
at 6.47 am which is correct.( branch op is 20 and return op is 40)
The three minutes late start in op 20 of std seq is due to 3 minutes extra time
defined for three work centers setup time.
I also tried with alignment key 1in both std seq and parellel seq.
Kindly check that you have maintained the continous flow prodn radio button
in the same operation in both std seq and parallel seq.
Regards,
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Production Order not printing with Parallel Sequence ?

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Dear Bhuvan,
I'm not sure if this is the issue,at a high level,check if the control key assigned to the operations in the
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Kind regards,
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I went through this and checked with development team.
CTM really do not consider parallel sequence and It currently is not planned to support parallel activities
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Difference between parallel sequence and parallel operation in a routing.

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Can any one explain me with example the difference between parallel sequence and parallel operation in a routing? wHEN CAN WE USE PARALLEL OPEARTION AND PARALLEL SEQUNCE WITH COMPONENT ALLOCATION.
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I think u need to modify ur quest... i think u r asking about Parallel sequence and alternate seq. Below are the details from SAP site.
A parallel sequence enables you to process several operations at the same time.
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Hello friends,
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Dear ,
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How to use parallel sequence for split the operation qty. urgent or other o

PP guru
My scenario is as follows.
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Hi
You can use TDMS file format to save the data. I have attached a reference Vi.
On button click you can log the data or remove the case structure and continuous log the complete acquisition data.
Thanks and Regards
Himanshu Goyal
Thanks and Regards
Himanshu Goyal | LabVIEW Engineer- Power System Automation
Values that steer us ahead: Passion | Innovation | Ambition | Diligence | Teamwork
It Only gets BETTER!!!
Attachments:
Data Save in File.vi ‏35 KB

Deletion of Serial numbers/ Parallel sequences from production order

HI ,
I am trying to delete the Serial numbers from the production order programatically using the FM SERNR_DEL_FROM_PP. I dont get any error , but the serial number is not getting deleted from production order. If anyone have used this FM for deletion Please let me know what extra has to be done.
Similarly i have a requirement or deletion of parallel sequence from the production order. Any FM to do the same?
Code screenshot below
CALL FUNCTION 'SERNR_DEL_FROM_PP'
       EXPORTING
            material              = i_matnr
            j_vorgang             = 'PMP2'
            ppaufnr               = i_paufnr
            ppposnr               = i_itemno
       IMPORTING
            anzsn                 = l_num_serno
            ZEILEN_ID             =
           SERIAL_COMMIT         =
       TABLES
            sernos                = gt_sernos
       EXCEPTIONS
            serialnumber_errors   = 1
            serialnumber_warnings = 2
            OTHERS                = 3.
DATA ls_afpod_po TYPE afpod.
MOVE-CORRESPONDING gs_afpod_po TO ls_afpod_po.
*.....Update Number of serial numbers in parent order
ls_afpod_po-anzsn = l_num_serno.
update afpo
set anzsn = l_num_serno
where aufnr = i_paufnr and
        posnr = i_itemno.
commit work AND WAIT.

Hello,
the function module SERNR_DEL_FROM_PP calls the function module SERNR_DEL_FROM_DOCUMENT within. There, the changes are only written into the memory.
See also the code below:
CALL FUNCTION 'STATUS_BUFFER_EXPORT_TO_MEMORY'             "P99K058111
        EXPORTING                                             "P99K058111
             I_MEMORY_ID = MEMID_STATUS.                      "P99K058111
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CALL FUNCTION 'SERIAL_LISTE_POST_PP'
EXPORTING
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Regards Simon

The deleted operation affects the confirmed yield of the parallel sequence

there is a production order.
the control key of the last operation is PP03,and it's confirmation is : Milestone confirmation.
and the production order has a parallel sequence,a external processing operation.
but i marked the external processing operation deleted.
then i confirm the last operation,and it's sysstatus is CNF
but the parallel sequence operation is not CNF.
WHY?

Dear,
did you delete the operatrion after release or before the release?

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Hello PP experts,
I have a routing with already a ALT sequence and no "branch" operation for the same, only my return oper is configured (this is a kind of converging routing).
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Thanks for your answer but this does not solve my pb.
To me there are 2 business case which can lead to model a // or ALT sequence in addition to a main seq.
1) As per your explanation, it is a need to increase and optimize the throughput based on lot size.
OR
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I already model one of my biz case where I need a main sequence on my routing, and this main seq is then joined by an ALT seq on a particular operation (my return operation). In that case usage of alternative seq with "branch oper = empty" and "return operation = 0040" is working well and fits my needs.
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Franck

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Hi all experts.
I would like to ask which table and field store the value of branch operation and return operation for routing in the alternative sequence. I can only find them in structure (PLFLD-VORNR1 and PLFLD-VORNR2) but I want the table field of them. Would anyone please suggest a solution? Thank you.

Hi,
look in table AFFL, here the BKNT1 and BKNT2 refer to those vornr1 and vornr2 of the operation. For example in user-exit ZXCO1U01 you will find the values (BKNT1/2) in the sequence table, and when, for example, filling the LOIPRO01-Idoc, you can use the found VORNR for the E1AFFLL-segment.
See coding for example on determining VORNR1/2 (sequence_table/operation_table as in user exit EXIT_SAPLCOBT_001):
SORT operation_table BY vornr.
LOOP AT sequence_table INTO l_sequence.
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* Read the operation table to determine the vornr1 and vornr2
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      READ TABLE operation_table INTO l_operation
      WITH KEY aufpl = l_sequence-aufpl
               aplzl = l_sequence-bknt1.
      IF sy-subrc = 0.
        l_affl-vornr1 = l_operation-vornr.
      ENDIF.
    ENDIF.
    IF NOT l_sequence-bknt2 IS INITIAL.
      READ TABLE operation_table INTO l_operation
      WITH KEY aufpl = l_sequence-aufpl
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Cheers,
S.

Extracting return operation from a parallel sequence in a routing.

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