SIEMENS
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Siemens IK PI · 2015
AS-Interface
Network transitions
DP/AS-i LINK Advanced
4
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Overview
DP/AS-i LINK Advanced
The DP/AS-i LINK Advanced is a compact network transition
between PROFIBUS (DP Slave) and AS-Interface, with the
following features:
•
Single and double AS-Interface master (according to
AS-Interface Specification V3.0) for connection of 62
AS-Interface slaves or 124 AS-Interface slaves (with a double
master)
•
Integrated analog value transmission (all analog profiles)
•
Integrated ground-fault monitoring for the AS-Interface cable
•
User-friendly local diagnostics and startup by means of a full
graphic display and control keys or through a web interface
with a standard browser on the PC screen
•
Optimum TIA integration using STEP 7
•
Integration in non-Siemens engineering tools using the
PROFIBUS GSD file
•
Vertical integration (standard web interface) through Industrial
Ethernet
•
Supply voltage from the AS-Interface shaped cable or alterna-
tively with 24 V DC (optional)
•
Suitable for AS-i Power24V (from product version 4 / firmware
version 2.2) and for Standard AS-i
with 30 V voltage
•
Module exchange without entering the connection parameters
(e.g. PROFIBUS address) using C-PLUG (optional)
Design
•
Compact plastic enclosure in degree of protection IP20 for
standard rail mounting
•
COMBICON plug-in screw terminals
•
Compact design:
- Pixel graphics display in the front panel for detailed display
of the operating state and readiness for operation of all con-
nected AS-Interface slaves
- 6 pushbuttons for starting up and testing the AS-Interface
line directly on the DP/AS-i LINK Advanced
- LED indication of the operating state of PROFIBUS DP and
AS-Interface
- Integrated Ethernet port (RJ45 socket) for user-friendly start-
up, diagnostics and testing of DP/AS-i LINK Advanced
through a web interface using a standard browser
•
Small mounting depth thanks to recessed plug mounting
•
Operation without fans and batteries
Functionality
Communications
The DP/AS-i LINK Advanced enables a PROFIBUS DP master to
cyclically access the I/O data of all the slaves of a lower-level
AS-Interface segment. Also supported are the expanded slave
types with higher I/O data volume according to AS-i Specifica-
tion V3.0.
The DP/AS-i LINK Advanced occupies the following address
area:
•
As a single master: 32 bytes of input data and 32 bytes of
output data in which the I/O data of the connected
AS-Interface slaves (standard and A/B slaves) of an AS-i line
are stored.
•
As double master, double the number of bytes
•
Optional additional I/O bytes for data from analog slaves
The size of the input/output image can be compressed so that
only the actually required I/O address area is occupied in the
system of the DP master. The integrated evaluation of analog
signals is just as easy as access to digital values because the
analog process data also lie directly in the I/O address area of
the CPU.
PROFIBUS DP-V1 Masters also provide the option of triggering
AS-Interface Master calls over the acyclic PROFIBUS services
(e. g. write parameters, amend addresses, read diagnostic
values). Using an operating display in AS-i Link it is possible to
fully commission the lower-level AS-Interface line.
DP/AS-i LINK Advanced is equipped with an additional Ethernet
port which enables use of the integrated web server. The web
server can be called up with any standard web browser (e. g.
Internet Explorer) without additional software. It allows all diag-
nostics information to be shown on the PC and the bus configu-
ration and, if applicable, any adjustments, to be displayed.
Firmware updates are also possible using this port.
The optional C-PLUG supports module exchange without
entering the connection parameters (PROFIBUS address etc.),
keeping downtimes to a minimum in the event of a fault.
Diagnostics
The following diagnostics is possible using LEDs, the display
and control keys, web interface or STEP 7:
•
Operating state of the DP/AS-i LINK Advanced
•
Status of the link as a PROFIBUS DP slave
•
Diagnostics of the AS-Interface network
•
Message frame statistics
•
Standard diagnostics pages in the web interface for fast diag-
nostics access through Ethernet using a standard browser
•
For the use of the web interfaces no network settings are nec-
essary on the PC (Zeroconf procedure).
•
The reporting of diagnostic events is optionally possible via
E-Mail or SNMP Trap. The integrated diagnostic buffer saves
the events including time stamp.
Notes on safety:
The use of this product requires suitable protective measures
(e.g. network segmentation for IT security among others) in
order to ensure safe plant operation, see
www.siemens.com/industrialsecurity
.
Configuration
The DP/AS-i LINK Advanced can be configured as follows:
•
With STEP 7 as of V5.4: With STEP 7 the AS-Interface config-
uration can be uploaded in STEP 7. Furthermore, AS-Interface
slaves can also be conveniently configured in HW-Config
(slave selection dialog).
•
By adopting the ACTUAL configuration of the AS-Interface on
the display
•
Alternatively DP/AS-i LINK Advanced can be integrated into
the engineering tool over the PROFIBUS GSD file
(e.g. STEP 7 versions below V5.4 or engineering tools from
third-party software houses).
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© Siemens AG 2014