New User? Sign Up  |  Sign In  |  Help
Barcode support and
tutorials from IDAutomation
and the community.
Click for the BBB Business Review of this Computers Hardware, Software & Services in Tampa FL
Resolved Questions

How do I calculate a MOD10 Check Digit for GS1-128 and other Code 128 Standards?


I need to generate a MOD10 Check Digit for GS1-128. How do I do this with your products using Code 128?


11-29-12     11.2 year(s) ago    

  Report Abuse

 

Ben

Best Answer

Several standards of Code 128 may require a MOD10 Check Character (Digit) calculation. Some of these standards include GS1-128, SSCC-18, and SCC-14.

When calculating a MOD10 for Code 128, the AI (Application Identifier) is not part of the calculation. Let's use an SSCC18 value as an example:

(00)00801234999999999

The (00) is the AI character and will not be part of the MOD10 calculation. However, the remaining data, 00801234999999999, will.

When the ApplyTilde option is enabled, some IDAutomation products will allow the user to encode FNC for AIs using the parentheses. If your product does not have this feature, then encode the FNC using the Tilde Method

To calculate the MOD10, ApplyTilde must be enabled.


Let's encode and calculate the check digit for the value above using the Tilde method.


~2120000801234999999999~m17


The ~212 identifies the two-digit AI. For three digits use ~213, for four digits use ~214, etc.

The ~m17 looks at the remaining data that is not an AI and calculates the check digit.

Using the Parentheses method is very similar:

(00)00801234999999999~m17


The check digit is 7.

The scanned result is 00008012349999999997



How do I know what to set ~m to?
You must refer to the standard that you are required to generate.

When generating GS1 symbols, IDAutomation recommends testing the result with the Barcode Decoder App which parses out GS1 data to verify proper encoding.

Posted 11.2 year(s) ago

(0)
(0)
  Report Abuse
 
Find Interesting
 
Email to Others
 
Bookmark
 
Subscribe to Answer Alert
No comments yet.     Be the first to comment.

Email this question link to friends
You must enter an email address, if name is entered or vice-versa for each friend.
Friend #1 -
Friend #2 -
Friend #3 -
Friend #4 -
Friend #5 -
  Your comment on this question
  |         |  
bold  italic  underline  strike       big  small       superscript  subscript 
  Allows to add a link. Added links would only be converted to actual clickable link, when the domain of the link is white-listed by administrator.
Caption :
Link URL :
(Must starts with "http://")
Add  |   Cancel
  Allow to insert an image. Must be among the following file types - *.jpg, *.gif, *.png & *.bmp.
Image Url :   Upload New
(Image url must always starts with " http:// ")
Width : pixels
(Must not be greater than 450px. Enter 0px for no resize)
Add  |   Cancel
  Allow to insert YouTube video. Insert the video embed code.
Embed Code :
Add  |   Cancel
Up to 5000 Characters are allowed. Current Count: 0
  Your comment on this answer
  |         |  
bold  italic  underline  strike       big  small       superscript  subscript 
  Allow you to add a link. Added links would only be converted to actual clickable link, when the domain of the link is white-listed by administrator.
Caption :
Link URL :
(Must start with "http://" or "https://")
Add  |   Cancel
  Allow to insert an image. Must be among the following file types - *.jpg, *.gif, *.png & *.bmp.
Image Url :   Upload New
(Image url must always start with "http://" or "https://")
Width : pixels
(Must not be greater than 450px. Enter 0px for no resize)
Add  |   Cancel
  Allow to insert YouTube video. Insert the video embed code.
Embed Code :
Add  |   Cancel
Up to 5000 characters are allowed. Current Count: 0

You may answer and comment on any thread according to the Terms and Conditions.

 © Copyright 2021 IDAutomation.com, Inc., All Rights Reserved. Legal Notices.

 Barcode Fonts | Components | Scanners | Support | Contact Us
Training Videos on YouTube Join us on Google Plus Join us on LinkedIn Follow us on Twitter Like us on Facebook