Description of Components
2-2
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
2.1
DP/PA coupler
The DP/PA coupler is intended for the following applications:
Stand-alone operation without additional components
Operation in the DP/PA link on a simple DP master system or on an S7-400H
Features
The DP/PA coupler has the following features:
Isolation between PROFIBUS-DP and PROFIBUS-PA
Implementation of the physical transmission system between RS 485 and the
synchronous physical bus level according to IEC 61784-1:2002 Ed1 CP 3/2
Diagnosis by means of LEDs
Transmission rate to PROFIBUS-DP of 45.45 kBaud
Transmission rate to PROFIBUS-PA of 31.25 kBaud
Integrated supply unit for PROFIBUS-PA
Integrated bus termination for PROFIBUS-PA
Extended range of environmental conditions
Special features of the DP/PA coupler Ex [i]
Version Ex [i] (6ES7 157-0AD81-0XA0) of the DP/PA coupler has the following
additional features:
Suitable equipment for potentially explosive areas, zone 0, 1 and 2
Intrinsic safety for the underlying PROFIBUS-PA
Integrated intrinsically safe supply unit for PROFIBUS-PA interface and
integrated barrier
Configuration
The DP/PA coupler can be used as a stand-alone device in all DP masters that
support 45.45 kBaud.
The DP/PA coupler does not have to be configured. You only have to set the
transmission rate of 45.45 kBaud for the corresponding DP master system and
configure and parameterize the PA field devices.
Note
If you use the IM 157 together with the DP/PA couplers as the DP/PA link, the
PROFIBUS-DP connections on the DP/PA couplers are not required. The IM 157
and the DP/PA couplers are connected via the S7 backplane bus.
Содержание Simatic 6ES7 157-0AC80-0 A0 Series
Страница 14: ...Contents xiv DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 42: ...Installation 3 12 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 70: ...Commissioning the DP PA Link 6 12 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 162: ...Technical Specifications B 40 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 170: ...Order Numbers and Accessories D 4 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 178: ...Glossary Glossary 8 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 182: ...Index Index 4 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...