'Device Replacement Without Engineering' is a PROFINET function that allows a failed IO Device to be replaced by an unconfigured new unit of the same model, with the PLC then automatically assigning the Name of Station and IP address via LLDP/DCP and downloading the configuration.
True
The plug-and-replace procedure requires zero engineering intervention: the faulty device is identified by a diagnostic alarm, maintenance unplugs it and connects the new one on the same ports, the PLC detects through LLDP that the new device sits in the port previously occupied by Device X, then sends a DCP 'Set Name' to assign the original Name of Station, and finally downloads the configuration (modules, parameters) automatically. The device is back in operation within a few seconds, which cuts MTTR (Mean Time To Repair) from hours to minutes and has become a standard expectation in Industry 4.0 deployments.
Stock spares as truly unconfigured units and never as 'pre-named' clones — a spare that already carries a Name of Station collides with the function and forces a manual factory reset on the shop floor.
PROFINET bank in preparation
The full PROFINET bank isn't available yet. Drop your email to get notified at launch and grab an early-bird discount.
Join the waitlist →See the 9 other PROFINET practice questions
Related questions
- PROFINET defines three device roles: IO Controller (equivalent to the PLC master), IO Device (equivalent to a slave: sensor, actuator) and IO Supervisor (engineering PC used for diagnostics and configuration).1. Architecture · Device-Rollen-Modell
- A GSDML file (Generic Station Description Markup Language) is provided by the manufacturer of a PROFINET IO Device and is imported into the engineering tool (e.g. TIA Portal) to integrate the device into the project.1. Architecture · GSDML
- The PROFINET Update Time of an IO Device is configurable individually depending on the application: typical values range from 1 to 128 ms in RT, and down to 250 us in IRT.2. Real-time classes · Update Time
- PROFINET supports several physical topologies: star (via switches), line (daisy-chain through ports integrated in the devices) and ring (with MRP for redundancy), and they may be combined within the same network.3. Topology & cabling · Unterstützte Topologien
- LLDP (Link Layer Discovery Protocol, IEEE 802.1AB) lets PROFINET devices identify each other and automatically discover the network topology, which is exploited by diagnostic tools such as PRONETA or the TIA Portal Topology Editor.4. Diagnostics · LLDP