Members of FieldComm Group may request access to download the HART Protocol Specifications.

Please open a new support request and specify the following:

Requester: Your email address (must use corporate email address)

Company Name: Your company name

I need assistance with: Membership Support Details: Request Member Access

Subject:  HART Protocol Specifications

Details: Request access to the HART Protocol Specifications

Once you have been granted access, please follow these instructions to obtain the latest version:

1. Go to
2. Log in using your corporate email address as the user name. To retrieve the password, please click on the "Forgot Password" link.
3. The downloads will be available in your “Shared Folders".

Online Reader 

Please visit the HART Specification page to view the documents online.

Not a FieldComm Group Member yet? 

Please visit the membership page on our website or place an order for the specifications through our online store here: HART Protocol Technical Specifications.  Non-members receive a printed version of the HART Protocol Specifications.