Industrial Engineer · phase 5 of 16

GSD / GSDML File

Device-description file used to configure a PROFIBUS or PROFINET device in an engineering system.

The Explain card

Plain English
A GSD file describes a PROFIBUS device, and a GSDML file describes a PROFINET one. They tell the engineering tool what modules the device has, what data it exchanges and what can be configured.
Example
A third party valve terminal ships with a GSDML file. Import it into the Siemens project and the terminal appears in the catalog with its slots ready to configure.
Why it matters
The file version has to match the device's firmware closely enough, or the station configures and then refuses to go online. When a device will not appear in the hardware catalog, the missing file is the first suspect.
Hook
The Siemens side's version of the EDS file.

Where it sits in the deck

Phase 5: PLC Industrial Communications

The protocols that let controllers, drives and operator panels talk, plus the addressing and description files that make them agree on what was said.