Siemens 6ES7972-0DA60-0XA0 SIMATIC DP PROFIBUS Bus Connector Ex I RS485-IS PLC Accessory

The Siemens 6ES7972-0DA60-0XA0 is a SIMATIC DP PROFIBUS bus connection plug approved only for PROFIBUS devices certified to explosion protection group Ex I, with a slanted cable outlet and insulation-displacement terminations for transmission up to 1.5 Mbaud. It includes a connectible passive bus termination for the RS485-IS circuit but no PG connection socket, in a 16 x 72.7 x 34 mm housing weighing 70 g.

Selection Notes

The Ex I restriction is the deciding spec here: this connector is only approved for PROFIBUS devices certified to explosion protection group I for mining and firedamp atmospheres, so verify the mating device's Ex marking before use rather than substituting a general-purpose DP connector. Its built-in, connectible passive RS485-IS bus termination lets it serve as a segment-end connector on an intrinsically safe network without a separate terminator module. The 1.5 Mbaud ceiling is lower than a standard DP connector's 12 Mbit/s, a consequence of the RS485-IS intrinsically safe interface it terminates.

Applications

Terminates PROFIBUS cable onto Ex I certified field devices on intrinsically safe RS485-IS network segments, typically in below-ground mining or other firedamp-classified installations.