Siemens SIPART PS2 6DR50xx Instrucciones de operaciones descargar pdf (Pagina 236)

Glossary

SIPART PS2 with and without HART communications

236 Operating Instructions, 09/2007, A5E00074631-07

NEMA 4x

The same protection like NEMA 4. Additional protection of the enclosure from corrosion.

Parameterization

During parameterization, individual parameter settings are specifically changed to adjust the

positioner as per the actuator or other requirements. Parameterization is carried out after the

complete commissioning of the positioner.

Piezoelectric effect

Name of a physical phenomenon. Due to mechanical compression loads on a crystal, an

electric potential develops on specific crystal surfaces. In a reverse case, applying an electric

field to specific crystal surfaces leads to crystal deformation.

Potentially explosive gaseous atmosphere

Mixture of air, combustible gases, vapors or mist.

Process device manager

PDM is a Siemens software package for project planning, parameterization, commissioning

and maintenance of network configuration and field devices. Part of SIMATIC Step7. Used

for the configuration and diagnostics of SIPART PS2.

PROFIBUS

PROFIBUS stands for process fieldbus. PROFIBUS is a manufacturer-independent standard

to network the field devices (e.g. PLCs, actuators, final controlling elements and sensors).

PROFIBUS is compatible with protocols such as DP (decentralized peripherals), FMS

(fieldbus message specification) and PA (process automation).

PROFIBUS PA

PA is an abbreviation of process automation. PROFIBUS PA is used in process engineering.

This fieldbus is used to control the measuring devices using a process control system. This

version of PROFIBUS is suitable for hazardous areas of zones 0 and 1. Only a weak current

flows through an intrinsically safe circuit in the bus cables, and hence sparks are not

generated even in case of a fault.

PA enhances PROFIBUS DP with an intrinsically safe transmission technique compliant with

the international standard IEC 61158-2.

Protocols

Protocols contain information about data formats, time sequences and error handling when

exchanging data between computers.

A protocol is a convention about establishing, monitoring and terminating a connection.

Different protocols are required for a data connection. Protocols can be assigned to every

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Siemens SIPART PS2 6DR50xx Instrucciones de operaciones Pagina 236