SIEMENS
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Siemens IC 10 · 2017
AS-Interface
Routers
DP/AS-Interface Link 20E
2
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Overview
DP/AS-Interface Link 20E manual
DP/AS-Interface Link 20E connects PROFIBUS DP to
AS-Interface and has the following features:
•
PROFIBUS DP slave and AS-Interface master
•
Up to 62 AS-Interface slaves, each with four digital inputs and
four digital outputs as well as analog slaves can be connected
•
Integrated analog value transmission
•
Supports all AS-Interface master functions according to the
AS-Interface Specification V3.0
•
Supply from AS-Interface cable; hence no additional power
supply required
•
Suitable for AS-i Power24V (from product version 2/firmware
version 3.1) and for standard AS-i with 30 V voltage
•
Supports uploading of the AS-Interface configuration in
STEP 7 V5.2 and higher
Design
•
Compact plastic enclosure in degree of protection IP20 for
standard rail mounting
•
LEDs in the front panel for indicating the operating state and
functional readiness of all connected slaves
•
Setting of PROFIBUS DP address is possible by pressing a
button
•
LED indication of the PROFIBUS DP slave address,
PROFIBUS DP bus faults and diagnostics
•
Two pushbuttons for switching over the operating state and for
adopting the existing ACTUAL configuration as the TARGET
configuration
Functionality
Communications
The DP/AS-Interface Link
20E enables a DP master to access all
the slaves of an AS-Interface network.
The DP/AS-Interface Link 20E occupies a standard 32 bytes
of input data and 32 bytes of output data in which the digital I/O
data of the connected AS-Interface slaves (standard and
A/B slaves) of an AS-i line is stored.
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 PROFIBUS DP master.
The analog I/O data can be accessed with the S7 system
functions for read/write data records.
Configuration
The DP/AS-Interface Link 20E is configured as follows:
•
With STEP 7 (classic), V5.1 SP2 or higher or STEP 7
(TIA Portal), V12 or higher:
In the case of STEP 7 configuration, the AS-Interface configu-
ration can be uploaded in STEP 7 V5.2 and higher. Further-
more, AS-Interface slaves from Siemens can also be conve-
niently configured in HW Config (slave selection dialog).
•
By adopting the ACTUAL configuration of the AS-Interface by
using the SET pushbutton on the front panel
•
Alternatively, DP/AS-Interface Link 20E can be integrated by
means of the PROFIBUS GSD file in the engineering tool (e.g.
for STEP 7 V5.1 and lower or for non-Siemens engineering
tools).
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Benefits
•
Reduction of installation costs because the power is supplied
entirely via the AS-Interface cable, which means that no addi-
tional power supply is required
•
Short startup times thanks to easy configuration at the touch
of a button
•
The LED indicators help reduce downtime and service times if
a slave fails
•
Quick and easy commissioning by reading the AS-Interface
configuration
•
For diagnostics during ongoing operation, diagnostics blocks
with clearly arranged visualization on the SIMATIC HMI panel
are available or can be downloaded free of charge via a web
browser;
see
.
IK10_10195a
AS-i M
DP-S
DP-M
PN
© Siemens AG 2016