HART 7 protocol

Fint releases new version of HART 7 Slave stack for embedded applications.


The Slave Stack  7.x is tested and used for the Texas MSP 430. The stack is also available for other platforms. Porting of the stack is a straightforward task and may be done by the customer or by Fint. In the latter case Fint needs to receive the relevant microcontroller with compiler and testing tools. The code is written in ANSI –C.

The protocol software is sold as a one-time buy-out license and is available in different versions. tailored to  the user’s specific requirements.

For most application this will be what you need:

  • Support for any HART command
    • Universal (Basic)
    • Common Practice
    • Device Specific
  • MultiDrop Mode
  • Support for 7.x HART commands
    • Universal Command extension
  • Support for extended address space
  • Support for Dynamic value Status
  • 16 bit Manufacturer Id       

If you require Burst Mode:

  • HART 7.x Burst mode 
  • Extended command numbers  (Addition for more commands beyond 256. Required for device family commands).
  • Event notification
  • Event simulation
  • Status handling according to NAMUR requirements

Suited for gateways or other devices that require more than 256 ms to respond:

  • Delayed Response. It is included an example for two Delayed Response buffers, DR buffers,  where two simultaneous transactions are possible. To support more buffers, the user must extend memory to required size.
  • Catching Device.    A feature that allows the device to be physically detected in the field.