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MSI Barcode Generator
Generate MSI (Modified Plessey) barcodes, a numeric-only barcode format commonly used for retail shelf labeling and inventory management. MSI barcodes are particularly popular in grocery stores and warehouses for marking storage bins, shelves, and containers.
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Enter a value to generate your barcode
Specifications
- Character Set
- Numeric only (0-9)
- Length
- Variable (no fixed length)
- Check Digit
- Modulo 10 (Luhn algorithm)
- Encoding
- Modified Plessey
- Density
- Low (wider than Code 128)
- Origin
- MSI Data Corporation (Plessey UK)
Use Cases
- Retail shelf labeling and price tags
- Grocery store inventory management
- Warehouse bin and shelf identification
- Library book check-out systems
- Container and storage tracking
- Internal inventory numbering
Frequently Asked Questions
What is an MSI barcode?
MSI (Modified Plessey) is a numeric-only barcode format developed by MSI Data Corporation, based on the original Plessey barcode. It is primarily used for retail shelf labels and inventory tracking.
What characters does MSI support?
MSI supports numeric digits only (0-9). It cannot encode letters or special characters. For alphanumeric data, use Code 128 or Code 39 instead.
What check digit algorithm does MSI use?
MSI typically uses a Modulo 10 check digit based on the Luhn algorithm. Some implementations use Modulo 11 or a double Modulo 10 for additional error detection.
Is MSI the same as Plessey barcode?
No. MSI is a modified version of the original Plessey barcode. While related, they use different encoding schemes and are not interchangeable.
Why would I use MSI instead of Code 128?
MSI is simpler to implement for numeric-only applications like shelf labeling. However, Code 128 is more versatile and produces more compact barcodes. MSI is mainly used in legacy systems.
What scanners can read MSI barcodes?
Most modern barcode scanners support MSI, but it may need to be enabled in the scanner settings. Check your scanner's configuration guide to enable MSI reading.
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