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PROFIBUS

PROFIBUS is a fieldbus communication standard used to connect field devices and control systems across industrial plants.

PROFIBUS Logo

PROFIBUS supports consistent data exchange in process automation environments and provides access to process values, device parameters, status information and diagnostics from connected instruments.

The technology is available in different variants for different application needs while still using the same communication protocol. To guarantee interoperability and to allow exchangeability of devices, a standardized PROFIBUS PA profile exists for various transmitters, actuators, and analysis devices. Additionally, the technology also supports modern device management by making key device information available through compatible operating and asset management tools.

Key technical characteristics

Protocol category

Fieldbus communication

Main variants and typical applications

PROFIBUS DP (RS-485)- Used for factory automation

PROFIBUS PA (IEC 61158-2) - Designed for process automation

Communication principle

PROFIBUS DP: Balanced voltage digital interface

PROFIBUS PA: Manchester Bus Powered (MBP)

Network toplogy

Linear bus, trunk/spur

Network components

Fieldbus interfaces , DP/PA segment coupler and links, field barriers and junction boxes and bus terminators

Supported bit rates

PROFIBUS DP: 9,6 kbps-12 Mbps (depends on distances)

PROFIBUS PA: 31,25 kbps

Intrinsic safety option

PROFIBUS DP: No

PROFIBUS PA: Yes

Control system integration

General Station Description (GSD)

Asset management integration

EDD, FDT, and FDI

Standard development organization (SDO)

PROFIBUS device information can be accessed with an FDT frame application or EDD operating tool. DTMs and EDDs are offered for all Endress+Hauser PROFIBUS DP and PROFIBUS PA devices. Device description files and certificates can be obtained from the download area of each product.

All Endress+Hauser PROFIBUS devices are tested and certified in independent laboratories that are accredited by the PROFIBUS User Organization (PNO). Additionally, all devices are additionally tested with all relevant control systems under typical operating conditions.

Explore Endress+Hauser's PROFIBUS-enabled measuring devices for your application.

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