What is the speed of FOUNDATION fieldbus?
What is the speed of FOUNDATION fieldbus?
FOUNDATION™ fieldbus is a digital communication protocol that is widely used in process automation. It has two main communication speeds, H1 and HSE, which depend on the network level.
At 31.25 kbit/s, the FOUNDATION Fieldbus H1 network works. This speed is good for connecting field-level equipment including sensors, transmitters, actuators, and positioners. One of its best features is that it uses a single, twisted two-wire connection to carry both power and communication information. This makes installation easier. In process environments, especially in dangerous or intrinsically safe (Ex) regions, H1 is quite dependable. In these places, slow but certain communication is often better than faster communication. Because it can combine device power and data on the same line, it is the most common variant used in process industries.
The FOUNDATION Fieldbus HSE (High Speed Ethernet), on the other hand, runs at 100 Mbit/s. This version acts as a high-speed backbone that connects many H1 segments, controllers, engineering stations, and host systems. HSE has the power to connect more systems, speed up data transfer, and increase plant-wide communication. It doesn’t power field devices as H1 does, but it does allow for more complicated structures where numerous control systems and servers can talk to each other quickly.
In short, FOUNDATION fieldbus has two speeds: 31.25 kbit/s (H1) for communication at the field level and 100 Mbit/s (HSE) for system integration at high speeds. These layers work together to make sure that devices can communicate with each other reliably and deterministically, while also giving modern process automation networks the flexibility and speed they need.