# PROFIenergy

Protocols · `PROFIenergy` · verification: source checked

PROFIenergy is an energy-management profile for automation devices on PROFINET networks. Control devices such as PLCs send PROFIenergy commands to Energy Consuming Units so the units enter predefined sleep modes during pauses and return to operation afterward. The profile uses the PROFINET Read-/Write-Record mechanism and a small command set for control and status functions.

## Specification

| Property | Value |
|---|---|
| Transports | ethernet_l2 |
| Architecture | client server |
| Encoding | binary |
| Standard body | PROFIBUS & PROFINET International (PI) |

## Connected

- Related: [PROFINET](https://machineschema.com/protocol/profinet.md)

## Safety

- The document states that at the end of a pause, field devices are available and ready for operation on a reliable basis.
- The document states that all equipment is fully ready to operate at the end of a pause, supporting plant availability.

## Study notes

- The document states that PROFIenergy uses the PROFINET Read-/Write-Record mechanism for commands.
- PROFIenergy commands can signal pauses such as lunch breaks, holidays, random line stoppages, or peak load conditions.
- Software agents in the ECU firmware initiate predefined sleep modes for the duration of a pause.
- Field devices with and without PROFIenergy functionality can share a common PROFINET cable.
- An integrated power switching function in field equipment enables energy savings during long, short, and extremely short pauses.
- PROFIenergy commands are transmitted over the existing network, avoiding additional control-cabinet hardware and discrete wiring.
- The profile uses a small set of commands for the control interface and status functions.
- The document describes PROFIenergy as device- and vendor-neutral and based on PROFINET.
- At the end of a pause, field devices are available and ready for operation.

## Sources

1. [PROFIenergy](https://www.profibus.com/technologies/profinet/profiles/profienergy) (accessed 2026-10-25)

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Source page: https://machineschema.com/protocol/profienergy  
JSON: https://machineschema.com/protocol/profienergy.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.