What is MSI Plessey barcode?
This part talks about the MSI Plessey barcode. MSI barcode, also known as Modified Plessey, is a numeric symbology developed by the MSI Data Corporation, which is used primarily for marking retail shelves for inventory control. Though continuous and self-checking, MSI Plessey provides several module checksum situations.
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What is MSI barcode symbology?
MSI (also known as Modified Plessey) is a barcode symbology developed by the MSI Data Corporation, based on the original Plessey Code symbology. It is a continuous symbology that is not self-checking. MSI is used primarily for inventory control, marking storage containers and shelves in warehouse environments.
What is the symbology of the MSI Plessey character set?
The symbology of the MSI Plessey character set consists of barcode symbols representing the numbers 0-9, the start character and the stop character. Generate MSI barcodes, also known as MSI Code or Pulse Width Modulated barcodes, with fonts in a variety of operating environments and applications with 8 font versions, including human-readable.
What is a Plessey Code?
Plessey code – The Plessey code is most often used for retail grocery shelf marking and in libraries. It originated in Europe, and from it, several variations have emerged including the MSI, Anker, and Telxon barcodes. The MSI Plessey code continues to be used in the United States.
MSI (also known as Modified Plessey) is a barcode symbology developed by the MSI Data Corporation, based on the original Plessey Code symbology. It is a continuous symbology that is not self-checking. MSI is used primarily for inventory control, marking storage containers and shelves in warehouse environments.
MSI Plessey (also known as Modified Plessey) is a numeric-only, variable-length symbology that is a variant of Plessey Code, which was originally developed by the Plessey Company of England in 1971.
MSI Data Corporation developed MSI Plessey to address the disadvantages of Plessey Code: it does not encode numbers efficiently, and it is one of the most error-prone of all barcode symbologies. The second check digit that MSI Data Corporation added as an option improved the code's reliability enough that MSI Plessey has continued to be used in specialty applications.
MSI Plessey has typically been used for inventory tracking, such as on the front edge of shelves in supermarkets and other warehouse environments to indicate where products are stored. It has also been used to identify storage containers.
The MSI/Plessey barcode, also known as just MSI, or Modified Plessey, is a numeric barcode that's used on shelves in supermarkets, as well as warehouses, and other storage facilities, for inventory purposes. The barcode on the shelf can be used to tell you what product goes there, how many units should be there, and other pertinent information. The barcode can be of any length, but the length is usually fixed by the specific application it's being used for.
Specifications: The MSI/Plessey barcode is done in binary format, with black bars being represented as "1" and spaces being represented as "0." All numbers, 0 through 9, are thus represented in binary on the barcode. The code begins with a "guard character," to indicate the start of the barcode, followed by the encoded data. After that is an optional check digit. MSI/Plessey supports several types of check digits, but the most common is Mod-10. The digits are added together in a specific way to get a single digit result. If the result matches the check digit, then the code is correct. After the check digit is another guard character to indicate the end of the code.
Advantages: MSI/Plessey can be of any length, and so can potentially be used to encode large amounts of information.
Disadvantages: It can only encode numbers, not letters. The binary format is also inefficient and prone to errors.
MSI Plessey Structure Introduction
Data Length Types: Variable-length
(Data Length in digits)
Codabar Structure Introduction
MSI Plessey barcode is a barcode symbology based on Pulse-Width Modulation. Each element in MSI Plessey is represent by 4 bars, using binary 0 and binary 1 to represent narrow bar and wide bar respectively.
Each MSI Plessey barcode is constructed of those following parts: quiet zone, start and stop character, eessage encoded, check digit. The start character is a single wide bar, and the stop character is two narrow bars.
Check Digit
MSI Plessey may have one or two check digit.
Modulo 10
A MSI Plessey barcode always includes a Modulo 10 checksum, which uses the Luhn Algorithm.
Modulo 1010
A MSI Plessey uses two Modulo 10 check digits: calculate the Mod 10 check digit the first time and then calculate it again with the previous result and append the result of the second Mod 10 Calculation to the string to be encoded.
Modulo 11
A MSI Plessey uses another method used to calculate a check digit is a Modulo 11 approach.
Modulo 1110
A MSI Plessey uses two Modulo 10 check digits: calculate the Mod 11 check digit the first time and then calculate it again with the previous result and append the result of the second Mod 10 Calculation to the string to be encoded.
MSI Plessey Barcode Size Setting
As for MSI Plessey size setting, three factors should be considered: bar width (i.e. X dimension) barcode width and height.
MSI Plessey Data Encoding
Being a postal barcode symbology, MSI Plessey encodes only numeric digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
MSI Plessey Barcode Checksum Digit
MSI Plessey specifications stated several MSI Plessey barcode checksum situations. MSI Plessey barcode can encode a module 10 checksum, module 11, module 1010, module 1110, among which the module 10 is the most common.
You can leave out the checksum digit as well, but it's not the common practice, and it is highly recommended to add a module 10 checksum digit. B
OnBarcode MSI Plessey barcode generator software & components provides all the above checksum alternatives for you to choose from.
Start Character:
The MSI Plessey barcode starts with a unique start character that is used to identify the beginning of the barcode. The start character in an MSI Plessey barcode is represented by a single bar followed by a single space. The start character is followed by the data characters that encode the information being stored in the barcode.
Data Characters:
The data characters in an MSI Plessey barcode can represent digits, uppercase letters, and several special characters. The number of data characters in the barcode can vary depending on the length of the information being encoded. Each character is represented by a series of bars and spaces of varying widths.
Check Character:
The check character in an MSI Plessey barcode is used to ensure the accuracy of the data being encoded. The check character is calculated based on the values of the data characters and is added to the end of the barcode. The check character is represented by a single bar followed by a single space.
Stop Character:
The stop character in an MSI Plessey barcode is used to indicate the end of the barcode. The stop character is represented by a single bar followed by two spaces. The stop character is added to the end of the barcode after the check character.
Cost of Implementing MSI Plessey Barcode
The cost of implementing MSI Plessey barcode can vary depending on a number of factors, including the size of the organization, the number of products that need to be labeled, the type of labeling equipment required, and the level of automation needed. The cost of implementing the MSI Plessey barcode can vary depending on a number of factors, including equipment required, and the level of automation needed.
While some of the costs associated with implementing MSI Plessey barcode can be significant, the benefits of barcode labeling, such as improved inventory control and tracking, can outweigh the initial costs over time. Organizations should carefully consider their requirements and budget when evaluating the cost of implementing MSI Plessey barcode. In this article, we will discuss the different costs associated with implementing MSI Plessey barcode.
MSI Plessey is based on the original Plessey Code. It is also referred to as Modified Plessey. There are two guard characters at beginning and end of the code. The code uses 0-9 but does not support alphabetic characters.
Because of this, the code is not often used anymore. Barcode scanners may not be able to read MSI Plessey, so check with other members in your supply chain before printing the code.
MSI Plessey Verifier
If you are printing Modified Plessey (MSI) codes, make sure that the codes are correct with a MSI Plessey Verifier (also known as a MSI Plessey Checker).
Webscan verifiers will ensure that the code is printed properly and verify MSI Plessey codes to ANSI and ISO standards.
Plessey Code is a 1D linear barcode symbology based on pulse-width modulation, developed in 1971 by The Plessey Company plc, a British-based company. It is one of the first barcode symbology, and is still used rarely in some libraries and for shelf tags in retail stores, in part as a solution to their internal requirement for stock control. The system was first used in the early 1970s by J.Sainsbury to identify all of its products on supermarket shelves for its product restocking system.
The chief advantages are the relative ease of printing using the dot-matrix printers popular at the time of the code's introduction, and its somewhat higher density than the more common 2 of 5 and 3 of 9 codes. It has later led several variations as Anker Code by ADS Company, Telxon, and MSI (also known as Plessey modified). It is difficult to have the specifications for them nowadays and thus hard to tell the differences between them (except for MSI), because it was mainly available as a paper document and has since been discontinued.
MSI Plessey Overview
MSI Plessey barcode is a linear barcode developed by MSI Data Corporation. It is invented based on the original Plessey code, used in libraries, and is often used for retail grocery shelf marking.
Variable-Length Encoding
One of the major advantages of MSI Plessey barcode is that it is a continuous, variable-length symbology. This means that it can encode a variable number of characters, making it ideal for applications where the amount of data being encoded may vary. Unlike fixed-length barcode symbologies, MSI Plessey barcode does not require additional space to be allocated for unused characters. This reduces the amount of space required for the barcode and allows it to be more compact.
Self-Checking Symbology
MSI Plessey is a self-checking symbology, which means that it contains a built-in error-detection mechanism. This ensures that the data has been encoded correctly and reduces the risk of errors in the data. This makes MSI Plessey barcode a reliable choice for applications where data accuracy is critical.
High Density Encoding
MSI Plessey barcode can encode a high density of data, which makes it suitable for applications where space is limited. It can encode up to 13 characters per inch (CPI) when printed with a 300 dpi printer. This means that it can encode more data in a smaller space compared to other barcode symbologies.
Easy to Print
MSI Plessey barcode can be easily printed using standard printers. It does not require any specialized printing equipment, which makes it a cost-effective option for applications that can print large number of barcodes. MSI Plessey barcode can be printed on a variety of materials like paper, plastic, etc.
Wide Range of Applications
MSI Plessey barcode is used in a wide range of applications, including inventory management, tracking, and POS systems. It is commonly used in the retail, healthcare, and manufacturing industries. Its variable-length and high-density encoding capabilities make it suitable for applications where the amount of data being encoded may vary.
Low Cost
MSI Plessey barcode is cost-effective for applications where a large number of barcodes need to be printed. It can be easily printed using standard printers and does not require any specialized printing equipment. Its variable-length and high-density encoding capabilities also make it a cost-effective option for applications where space is limited.
Easy to Read
MSI Plessey barcode can be easily read using a barcode scanner. The scanner measures the widths of the bars and spaces in the barcode to determine the encoded data. The start and stop characters in the barcode indicate the beginning and end of the barcode. Once the start and stop characters are identified, the decoder reads the values of the bars and spaces in the barcode to determine the encoded data. This makes MSI Plessey barcode an easy-to-read and reliable option for applications where barcode scanning is required.
Conclusion
MSI Plessey barcode has several limitations that businesses should consider when deciding whether to use this barcode symbology. Its limited character set, data capacity, and wide quiet zone requirements may make it unsuitable for some applications.
Businesses that use MSI Plessey barcode may also need to ensure that their suppliers and customers have the necessary equipment to read the barcode. While MSI Plessey barcode offers advantages such as ease of printing and reading and low cost, businesses should carefully consider its limitations before choosing this barcode symbology for their applications.
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