Siemens SIMATIC ET 200AL Instrukcja obsługi sprzętu - Strona 13

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Product overview

2.3 Functions

2.3

Functions

2.3.1

Introduction

The interface module supports the following PROFIBUS DP functions:

• Operation as DPV0 and DPV1 slave

• Identification data I&M0 to I&M3

• Firmware update

• Configuration control by means of the user program

PROFIBUS DP

The PROFIBUS DP interface is used for connection to CPUs. With PROFIBUS DP you can set up

extended subnets.

PROFIBUS is the network for the cell and field area in the open, manufacturer-independent

communication system SIMATIC NET. Physically, PROFIBUS is an electrical network based on a

shielded two-wire cable or an optical network based on a fiber optic cable.

Data transmission via PROFIBUS DP features a standardized interface (EN 50170 Vol. 2) for

the transmission of process input and process output data between SIMATIC S7 and field

devices (DP slaves).

The transmission behavior via PROFIBUS DP is characterized by cyclical data exchange

between the DP master and the DP slaves.

Reference

You will find more information on PROFIBUS DP in the STEP 7 online help and in the Function

Manual PROFIBUS with STEP 7 V13

(http://support.automation.siemens.com/WW/view/en/59193579).

IM 157-1 DP (6ES7157-1AA00-0AB0)

Equipment Manual, 08/2021, A5E32100641-AE