Kenttäbusstandardien

Kenttäbusstandardien refers to a set of technical specifications and protocols used for communication within a fieldbus system. A fieldbus is a type of industrial local area network that connects programmable logic controllers (PLCs) and other control devices with sensors and actuators in a factory or process automation environment. These standards define the physical layer, data link layer, and application layer of the fieldbus communication.

Different fieldbus standards exist, each with its own characteristics, advantages, and typical applications. Examples include PROFIBUS, DeviceNet, CANopen, Foundation Fieldbus, and Modbus. These standards dictate aspects such as the electrical signaling, message framing, addressing schemes, and the structure of data exchanged between devices. The choice of a particular fieldbus standard often depends on factors like the required speed, determinism, noise immunity, cabling type, and the specific industry or application being addressed.

The primary purpose of fieldbus standards is to ensure interoperability between devices from different manufacturers. This means that a sensor from one company can communicate seamlessly with a controller from another, as long as both adhere to the same fieldbus standard. This interoperability reduces system integration costs and increases flexibility in system design and maintenance. By standardizing communication, fieldbuses enable more efficient data acquisition, control, and diagnostics in industrial automation.