Profibus, Hart, Foundation fieldbus for EDDL

The three major fieldbus organisations are behind an initiative to standardise an Electronic Device Description Language (EDDL).

An agreement by these organisations will see the completion of the EDD technology that has already been unified under the European NOAH project and adopted by Cenelec. It is available as an IEC Public Available Specification (PAS), and the version will now be 'rounded off' and submitted as a draft international standard to the IEC for vote.

EDDL is a description language used for describing the parameters of field instruments. An EDD (Electronic Device Description) is provided with each instrument for interpretation either by device configuration software, or by a control system. EDD ensures that an instrument provides the right data for the system.