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DP/PA Link and Y Link Bus Couplings
A5E00193841-011
Product Overview
Overview of contents
This section describes which components are included under bus couplings and
how the bus couplings are integrated in the Siemens automation landscape.
Section
Topic
Page
1.1
Bus couplings
1.2
Integration in the automation landscape
1.1
Bus couplings
DP/PA coupler
The DP/PA coupler is the physical link between the PROFIBUS-DP and
PROFIBUS-PA. In stand-alone operation, it provides a simple means of
communicating with PA field devices via PROFIBUS-DP. This does not require any
additional components.
The DP/PA coupler is also employed in the DP/PA link for more demanding
coupling tasks (see below).
In addition to the “normal” version, the DP/PA coupler is also available in an Ex [i]
version for connecting PA field devices in potentially explosive environments.
DP/PA link
The DP/PA link consists of one or two IM 157 interface modules and one to five
DP/PA couplers that are interconnected either via passive bus connectors or via
bus modules, as required.
The DP/PA link provides a gateway from a PROFIBUS-DP master system to
PROFIBUS-PA. By means of the IM 157, the bus systems are decoupled both
physically (electrically) and with respect to the protocol and time.
By employing two IM 157 interface modules, the underlying PROFIBUS-PA master
system as a whole can be connected as a switched I/O system to a redundant DP
master system of an S7-400H. For this purpose, the structure is always be
configured with bus modules.
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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 ...