The CANopen application profile for lift control systems, also known as CANopen Lift specification, defines the communication interfaces for different virtual devices. This includes call, car drive, and car door controllers as well as input panel, output panel, car drive, car position, load measuring, car door, light barrier, remote data transmission, and power-measuring units. All necessary PDOs for a single-shaft lift control system are defined; some of them are distributed in broadcast other peer-to-peer.

The Standard Elevator Information Schema is a mechanism for communicating static information, such as configuration details, dynamic information such as current floor and registered calls and events such as calls and car trips, between all manner of systems and users of passenger elevators. It comprises a set of definitions of complex and simple data types and the structures in which they may be used.

NeXt group provide open projects like specifications, documentation, hardware and software for elevator, escalator, tools and cloud services unter free licences. All public projects developed by NeXt group members are available for download free of charge, also for non-members and can be used also for commercial purposes. However, some projects are only available for members of the NeXt group. There are several reasons for this.

NeXt group also provide open specifications for elevator, escalator, tools and cloud services unter a free licence. An open specification can help to:

• to optimise the interoperability of devices, tools and services
• to implement open interfaces in own devices
• to reduce development costs
• ...

Some specifications are currently available for members only.