Inspecting and Decompressing SIMATIC BATCH SBX Master Recipe Files

To open, view, or analyze SIMATIC BATCH master recipe export files (.sbx or .sbf), decompress the file using any standard zip decompression utility such as 7-Zip, WinRAR, or Windows Explorer by renaming the extension from .sbx to .zip. SIMATIC BATCH SBX files are standard compressed archive packages containing Unicode XML documents compliant with the ISA-88 BatchML schema (SB_Schema.xsd). Once extracted, inspect the recipe hierarchy, recipe unit procedures (RUPs), phases, formula parameters, and transition logic in any modern XML editor. Never recompress manual XML edits for production import without schema validation, as modified checksums will cause import rejection.

SIMATIC BATCH Export Architecture: SBX and SBF Containers

In SIMATIC BATCH (the ANSI/ISA-88 compliant batch control system for SIMATIC PCS 7), master recipes, recipe library elements, materials, and formula categories can be exported from the BATCH Control Center (BCC). The system packages these engineering objects into export files:

.sbx: SIMATIC BATCH XML export container (used for individual master recipes, formula categories, or library operations).
.sbf: SIMATIC BATCH Complete Backup file (used for full database backups of the entire batch system).

Engineers frequently need to inspect .sbx files outside SIMATIC BATCH for version comparisons, regulatory change control audits, recipe archiving, or automated quality assurance. However, attempting to open an .sbx file directly in standard text editors displays unreadable binary characters because the file is compressed using standard Deflate (Zip) algorithms.

Internal Structure of the Compressed Unicode Recipe XML

Decompressing an .sbx archive reveals an ISA-88 structured XML hierarchy formatted in Unicode (UTF-8 or UTF-16):

Recipe Header: Contains recipe metadata, unique GUID, version number, author, release status, and equipment allocation.
Recipe Unit Procedures (RUP): Defines procedural allocation to technological plant units (e.g. Reactor 1, Mixing Tank).
Recipe Operations (ROP): Groups sequential control steps within each unit.
Recipe Phases (EPH): Represents the lowest execution level linked to S7 SFC Types (e.g. Heat, Dose, Agitate).
Transitions and Interlocks: Encodes step transition criteria and Boolean logic conditions.
Formula Parameters: Enumerates setpoints, process value ranges, engineering units, and tolerance bands.

Step-by-Step Procedure to Extract and Inspect SBX Files

Follow this simple procedure to inspect recipe contents on any standard engineering computer:

Acquire Export File: In BATCH Control Center, right-click the target Master Recipe and select Export.... Save the file as MasterRecipe_ProductA.sbx.
Decompress Archive:
- Method A: Rename the file extension from .sbx to .zip. Right-click and select Extract All... via Windows Explorer.
- Method B: Open 7-Zip or WinRAR, browse to the .sbx file, and extract the internal files to a destination folder.
Open Extracted XML:
- The extracted contents yield one or more .xml files (e.g. RecipeData.xml) and associated metadata descriptors.
- Open the .xml file in an XML editor (e.g. Visual Studio Code, Notepad++, or XMLSpy).
Analyze Parameters: Use XML search features or XPath queries to inspect step parameters, setpoints, or compare versions using file comparison tools (e.g. WinMerge or Git diff).

SIMATIC BATCH Recipe File Format and Content Reference

The following table details the internal structure and schemas of SIMATIC BATCH export containers:

File ExtensionInternal PackagingCore Data FormatPrimary Schema / StandardPermitted Operational Use.sbxCompressed ZIP archiveUnicode XML (UTF-8)ISA-88 BatchML / SB_Schema.xsdRecipe export, audit comparison, backup.sbfCompressed ZIP archiveRelational DB dump & XMLProprietary SIMATIC BATCH BackupComplete batch system restoration.xml (Extracted)Plain text fileFormatted XML hierarchySiemens BATCH Recipe XML SchemaOffline auditing, programmatic analysis.csv (Formula)Delimited plain textTabular setpointsCSV Parameter DefinitionBulk formula parameter editing

[!NOTE]
Commercial Accuracy Notice: SIMATIC BATCH master recipe creation and execution requires SIMATIC BATCH Server and Recipe > System licenses (6ES7657-0AX58-0YB0). Decompressing, viewing, and auditing .sbx recipe files offline requires no software > licenses and consumes no Batch Process Objects.

Verification

Verify that the recipe XML was extracted and analyzed successfully:

Schema Well-Formedness Check: Open the extracted XML file in Visual Studio Code or an XML validator. Confirm that the document reports Valid XML without syntax errors or unclosed tags.
Content Verification: Search the XML text for known recipe setpoints (e.g. temperature target 85.0). Confirm that the parameter name, value, and engineering units match the values visible in BATCH Control Center.
Difference Comparison: Run a file comparison between two exported recipe revisions. Verify that modified step logic and changed setpoints highlight cleanly in the diff tool.

Limitations and Operational Precautions

Adhere to these precautions when working with recipe export files:

Never Manually Recompress for Production Import: SIMATIC BATCH validates recipe digital signatures and internal checksums during import. Manually editing the XML and recompressing it into an .sbx file will cause BATCH Control Center to reject the file as corrupted or unauthorized.
GAMP / FDA 21 CFR Part 11 Compliance: In regulated life-sciences facilities, master recipes are controlled electronic records. Never bypass formal Change Control procedures when reviewing or exporting recipe files.
Character Encoding: Always ensure text editors preserve Unicode encoding (UTF-8 without byte order mark header) to prevent corruption of multilingual step names or special characters.

Engineer FAQ

What program can open an SBX file directly without converting?

SIMATIC BATCH Control Center (BCC) is the native application. For third-party inspection, any archive utility (7-Zip, WinRAR) can open and extract the file directly.

Why can't I import an SBX file that I edited in an XML editor?

SIMATIC BATCH embeds internal checksums, GUID relationships, and schema validations. Modifying values in an XML editor breaks these relational hashes, causing BCC import validation to fail.

Can I compare two recipes using their extracted XML files?

Yes. Extracting the XML from two different .sbx files allows you to use standard visual comparison tools (like WinMerge or Beyond Compare) to perform detailed line-by-line audits of recipe differences.

Is SIMATIC BATCH XML compliant with BatchML?

Yes. The underlying XML schema is modeled on the ISA-88 BatchML standard, facilitating interoperability with enterprise MES (Manufacturing Execution Systems).