MSI Barcode

MSI (Modified Plessey) is a specialized barcode format developed by the MSI Data Corporation. It's primarily used for inventory control, warehouse management, and retail shelf marking. The format supports numeric digits (0-9) and includes various checksum options for error detection.

Basic Usage

import { barcode } from '@stacksjs/qrx'

barcode('#barcode', '123456789', {
  format: 'MSI'
})

Available Variants

qrx supports multiple MSI variants with different checksum calculations:

// Basic MSI (no checksum)
barcode('#barcode', '1234', { format: 'MSI' })     // Result: 1234

// With Mod 10 checksum
barcode('#barcode', '1234', { format: 'MSI10' })   // Result: 12344

// With Mod 11 checksum
barcode('#barcode', '1234', { format: 'MSI11' })   // Result: 12343

// With double Mod 10 checksum
barcode('#barcode', '1234', { format: 'MSI1010' }) // Result: 123448

// With Mod 11 & Mod 10 checksum
barcode('#barcode', '1234', { format: 'MSI1110' }) // Result: 123430

[!NOTE] Image needed: Visual comparison of different MSI variants

Customization Options

import { barcode } from '@stacksjs/qrx'

barcode('#barcode', '123456789', {
  format: 'MSI',
  width: 2,
  height: 100,
  displayValue: true,
  fontSize: 20,
  font: 'monospace',
  textAlign: 'center',
  textPosition: 'bottom',
  textMargin: 2,
  background: '#ffffff',
  lineColor: '#000000'
})

Common Applications

1. Retail

   • Shelf marking
   • Price labels
   • Inventory tags

2. Warehouse

   • Location marking
   • Bin labels
   • Storage containers

3. Inventory Control

   • Asset tracking
   • Stock management
   • Item identification

[!NOTE] Image needed: Real-world application examples

Error Handling

import { barcode } from '@stacksjs/qrx'

barcode('#barcode', '123456789', {
  format: 'MSI',
  valid: (valid) => {
    if (!valid) {
      console.error('Invalid MSI barcode input')
      // Handle invalid input
    }
  }
})

Technical Specifications

1. Character Set

   • Numeric only (0-9)
   • Variable length
   • Optional checksums

2. Structure

   • Start character
   • Data digits
   • Optional check digit(s)
   • Stop character

3. Variants Available

   • MSI10 - Single Mod 10
   • MSI11 - Single Mod 11
   • MSI1010 - Double Mod 10
   • MSI1110 - Mod 11 & Mod 10

Best Practices

1. Checksum Selection

   • Use MSI10 for basic error detection
   • Use MSI1010 for enhanced reliability
   • Use MSI1110 for maximum security

2. Implementation Guidelines

   • Validate numeric input
   • Consider scanner compatibility
   • Test checksum verification

3. Print Quality

   • Maintain quiet zones
   • Ensure adequate contrast
   • Verify scanner readability

[!NOTE] Image needed: Best practices visualization

Migration Guide

If transitioning from MSI to modern formats:

// Current MSI implementation
barcode('#barcode', '123456789', { format: 'MSI' })

// Modern alternative (CODE128)
barcode('#barcode', '123456789', { format: 'CODE128' })

For detailed information about specific MSI variants, see:

• MSI10 Documentation
• MSI11 Documentation
• MSI1010 Documentation
• MSI1110 Documentation