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George Moroses
/ Categories: Infor LX & BPCS Tips, Manufacturing

Infor LX & BPCS Manufacturing Tip of the Week: Backward Scheduling

Operations are automatically backward scheduled at shop order release time. The backward scheduling algorithm starts with the shop order due date and schedules each operation based upon the standard move and queue times in the routings and the number of days the job is expected to run at standard. The system calculates and stores the operation scheduled start date. The dates may be modified by the shop order maintenance program. The number of days that a job is expected to run an operation is dependent upon the available capacity for that work center and the total hours scheduled for that operation.

The backward scheduling algorithm also considers the shop calendar for weekends, shutdowns, holidays, and partial days.

Backward Scheduling Process

The algorithm starts with the due date of the shop order or planned order. The system makes the following calculations for each operation in the reverse sequence:

  1. The number of move days is subtracted from the due date (or initial date of the previous operation) to get the due date for this operation. The move days are only used on valid shop calendar days.
  2. The system uses the following calculation for the number of clock hours for the operation: Standard run or machine hrs/No. of operators + setup hours
  3. The number of clock hours is spread over the available daily capacity of the work center for those given days. The system uses the following calculation for the daily capacity of the work center: Number of shifts x hours per shift x average efficiency/100
  4. Each day is checked against the shop calendar; the calculation bypasses inactive days or adjusts for any changes in the work center capacity for that day.
  5. Queue time days are subtracted in the same manner as move time days. The resulting date is the operation start date.

The algorithm then goes to the previous operation. When all operations have been included, the resulting date is the scheduled start date of the shop order. Note that MRP uses the item lead time to determine material requirement dates on planned orders.

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Tips:  LX | BPCS | M3

This enhancement simplifies access to LX programs that are available through System i Manager (SiM), as well as Workflow for System I (WFi). This provides an easy way to promote common WFi business processes from one LX environment (for example, test or environment) to another LX environment (for example, production). 

LX also provides a set of four-character task codes that can be used within SiM, System i Workspace (SiW), and WFi, for default programs in LX. These predefined LX task codes begin with 0,1,2,3, or 4. Users can specify task codes for their custom programs that are flagged as valid menu options in LX, but these task codes cannot begin with 0,1,2,3, or 4. Users can specify the task codes in Infor LX Object Master Maintenance, SYS625D. This enhancement provides simplified access to LX programs that are flagged as valid menu options in System i Manager and Workflow for System i environments. In SYS625D, The user can also specify task codes in SYS625D for customized programs that are flagged as valid menu options.

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Users are no longer limited to backing up or saving files to a tape or diskette.They can now use a Save File (SAVF) to save data and objects. LX programs that perform saves and/or backups were modernized to add a new SAVF option.  

There were numerous places in LX where users are prompted to save a file or library. These screens have options for tape or diskette. Diskette refers to the old 8” diskettes used on System/38. These devices are outdated and virtually obsolete. The current means of saving objects on the IBM i, is through the use of a Save File (SAVF). This compresses the data into a single object that can be saved and is easily transferred between systems.

These objects were modified and/or created for this enhancement:

  • Backup Simulation (FOR630C, FOR630D, FOR630FM, FOR640HT, and FOR630HT)
  • Month End Close (INV903D, INV903FM, INV901C, and INV903HT)
  • Purge YTH/Restore Archived Lots (INV912C, INV912D, INV912DHT, and INV912FM)
  • Purge and Save ITH records (INV932C, INV932D, INV932FM, and INV932HT)
  • Labor Ticket Save (SFC905D, SFC905FM, SFC901C, and SFC905HT)
  • Backup Infor LX Files (SYS700C, SYS700D, SYS700FM, and SYS700HT)
  • Backup Infor LX Programs (SYS710C, SYS710D, SYS710FM, and SYS710HT)
  • Backup Infor LX Source (SYS740C, SYS740D, SYS740FM, and SYS740HT)
  • Save File Name Selection (SYS912D, SYS912FM, and SYS912HT)


Benefit

Use the Backup Simulation to copy a simulation file to a SAVF or tape. Users may want to do this to transfer simulation data from one system to another, from site to site, or to save the data before permanently deleting it from the system.

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Tips: LN | Baan

All actions required for converting, validating, matching, and posting electronically received bank statements can be performed within a single session:

  • Bank Statement Workbench (tfcmg5610m100)
  • Bank Statement (tfcmg5610m000)

Alternatively, you can use the sequence of electronic bank statement sessions outlined below.

Steps to Process Electronic Bank Statements:

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