Modern PA devices are INTELLIGENT and can execute part of the information processing in automation SYSTEMS. This was previously done by the PLCs or DCS systems. The PA profile is designed with co-operation of the process industry and defines all functions and parameters for different classes of instruments. It is based on internationally accepted function block technology.

The profile contains descriptions for the following instrument types:

• Pressure (and differential)
• Level, temperature and flow
• Analog/digital inputs and outputs
• Valves and actuators
• Analyzers

The profile is divided into 2 classes (A and B):

Class A of the profile describes COMMON parameters of simple devices. The scope is limited to the basic functions. This set consists of the process variables (e.g. temperature, pressure, level) added by measured value state, the tag name and the engineering unit.

Class B is an extension to class A and will cover more complex application functions for identification, commissioning, maintenance and diagnosis. The relationship of the parameters to the classes is VISIBLE within the parameter definitions and in the conformance statements.

To conclude: The PA profile defines cyclical data + status, diagnostic information and parameters. The PA profile assures interoperability and device exchangeability

Modern PA devices are intelligent and can execute part of the information processing in automation systems. This was previously done by the PLCs or DCS systems. The PA profile is designed with co-operation of the process industry and defines all functions and parameters for different classes of instruments. It is based on internationally accepted function block technology.

The profile contains descriptions for the following instrument types:

The profile is divided into 2 classes (A and B):

Class A of the profile describes common parameters of simple devices. The scope is limited to the basic functions. This set consists of the process variables (e.g. temperature, pressure, level) added by measured value state, the tag name and the engineering unit.

Class B is an extension to class A and will cover more complex application functions for identification, commissioning, maintenance and diagnosis. The relationship of the parameters to the classes is visible within the parameter definitions and in the conformance statements.

To conclude: The PA profile defines cyclical data + status, diagnostic information and parameters. The PA profile assures interoperability and device exchangeability