Silo deduction
Depending on the setting, consumption comes off stock immediately on posting or on a schedule as production runs. Alternatively, stock levels come from a PLC or an MES.
Batch log · W-Make Batch
Batch log software for glass production.
A digital batch log records which batch was posted when and with which formula, and deducts the consumption from silo stock. W-Make Batch does this for container-glass furnaces, designed for a pull of 150 to 600 t/d.
The batch log
All posted batches are listed with number, shift, recipe and glass mass. Filters and search lead quickly to an entry, and the figures above show progress against the daily target.
Every batch stays on record
One click shows what was used: for each raw material the quantity, the difference from the previous posting, and the cost.
Stock and days of cover
A card for each silo shows level, moisture, daily consumption and days of cover. The overview of all silos sits on top.
Target and actual per production day
The monthly table sets batches and tonnage per day against the target. The individual day opens from here.
Where spreadsheets fall short as a batch log
A spreadsheet can list batches. It does not know that a posted batch changes the silo level or that the daily log builds on it. Values are therefore copied by hand, and every list keeps its own version of events.
Then there is correction. In a spreadsheet you overwrite the wrong row, and afterwards nobody can see what was there before. If a silo difference shows up the next morning, it can no longer be matched to any event.
What goes into the batch log
Every entry is a record. On posting, the batch sheet is stored as an unchangeable snapshot, with all ingredients, the glass mass, the target tonnage and the scaling. Later recipe changes do not touch it.
The most recently posted, non-cancelled entry for a furnace defines the active recipe. If there is no new posting the next day, the previous day's recipe keeps running.
The batch log holds the batch postings. The batches actually run come from the daily log, and goods received by truck, pallet or sack go through a separate posting channel. That keeps production and logistics separately traceable.
What W-Make Batch handles around the batch log
Cancellation, not deletion
Wrong entries are cancelled. The reversal returns the quantity to the silo, and the original entry stays visible.
Daily reconciliation
Posted consumption and the daily log are reconciled per production day. The day begins at the configured shift start, usually 06:00.
Wet mass and oxide mass
Silos and scales work with weight including moisture, the glass calculation with oxide mass. Moisture at deduction is stored too and is available for CO₂ reports.
Multiple furnaces and sites
Each furnace has its own context of silos, postings and logs. Each site keeps its own furnaces, raw materials and recipes.
Passing data on
Reports are available as print and PDF. A CSV export is available for SAP.
What W-Make Batch is not
W-Make Batch is not a plant control system. Your PLC keeps controlling scales and conveyors. Batches and stock levels can, however, be taken over from an MES or PLC through an API.
Frequently asked questions
+What is a batch log?
A batch log is the running record of the batches posted for a furnace. It shows which composition applied from when and which raw material quantities were planned for it.
+Can batch log entries be deleted?
No. Corrections go through cancellation or reconciliation. That keeps events traceable and still brings the silo stock back in line.
+How does our existing data get out of Excel and into the system?
That depends on how your files are built. Send me an example and I will tell you what can be carried over. Going live in the system starts with a stocktake.
+Can the software run on our own plant network?
Yes. It can run on your own server, supported by me or by your IT, or by subscription on W-Make servers.
Further reading
- W-Make Batch · Vanilla: features and a look at the application
- Batch log and silo deduction: why domain postings must not be deleted
- Request access: All demo instances contain made-up data and are password-protected. Temporary access is available on request.
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