Check the spec
Charset, lengths and check-digit rules for this symbology are listed above — the form enforces them instantly.
Free tools · Barcodes
Generate Plessey codes that scan.
UK pulse-width Plessey code with its inherent two-character CRC. Type the payload for Plessey below — validation, check digits and a local scan-test run in your browser before anything exports.
Barcode generator
Type text, get a symbol.
Runs locally in your browser. Nothing is uploaded; the field clears after ten idle minutes.
Advanced (GS1, checks, profiles, retail add-ons, supply-chain carrier)
Plessey always carries its two-character polynomial CRC; it is computed automatically.
Style (readable text, bar height, export size)
Bar height stretches bars vertically, which scanners ignore (only horizontal timing matters). The SVG download keeps the engine's exact geometry.
Specification
| Standards | Plessey pulse-width code |
|---|---|
| Character set | Hexadecimal 0–9 A–F, 1–80 data characters; the two CRC characters are computed automatically. |
| Lengths | 01234ABCD |
| Check digits | Two-character polynomial CRC always appended. |
| Quiet zone | 10X quiet zone. |
| Capacity | Hex 0-9 A-F, 1-80 data characters. |
Usage
Plessey labels industrial parts, documents and work orders: print it on badges, boards and bins where rugged 1D scanners operate.
- Plessey on asset tags for workshop tracking
- Plessey on work-order paperwork for line-side scanning
- Plessey proofs exported as PNG for quick sharing
Shape
Pros
- Plessey tolerates industrial printers, labels and badge stock.
- Case folding, padding and check rules are explained before encoding.
- PNG and SVG exports cover both quick sharing and print.
- The self-verify readout shows exactly what a scanner will observe.
Cons
- Plessey is wider per character than 2D codes for long payloads.
- Dense narrow bars demand close, steady photography when verifying.
- Damaged or smudged labels lose characters with no error correction.
- Colored or low-contrast prints scan poorly.
Form requirements
- Enter 01234ABCD.
- Hexadecimal 0–9 A–F, 1–80 data characters; the two CRC characters are computed automatically.
- The symbol is decoded again locally before preview and downloads unlock.
Sources
- AIM symbology specifications (AIM)
Related formats
Keep exploring.
How it works
Three steps, all on your device.
The same engine that reads barcodes writes them — every symbol is decoded again before you see it.
Type the payload
Every symbol is validated and decoded again on your device before it is shown.
Download and print
Take a resolution-independent SVG for print or a PNG for sharing. Nothing is uploaded.
Questions
Plessey Generator & Specs, answered.
If you manage servers by hand, see the engineering services behind this tools series.
What can I type for Plessey?
Hexadecimal 0–9 A–F, 1–80 data characters; the two CRC characters are computed automatically. Example: 1234ABCDEF.
How does Plessey handle check digits and printing?
Two-character polynomial CRC always appended. 10X quiet zone. Export SVG for print and PNG for sharing; both render on your device.
Is my data uploaded anywhere?
No. Encoding and verification run entirely in your browser — the page makes no network requests with your data, stores nothing, and wipes the field after ten idle minutes.
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