SIEMENS
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Siemens IC 10 · 2017
AS-Interface
Routers
DP/AS-i LINK Advanced
2
■
Application
The DP/AS-i LINK Advanced is a PROFIBUS DP-V1 slave
(according to IEC 61158/IEC 61784) and an AS-Interface
master (based on AS-Interface Specification V3.0 according to
IEC 62026-2). It enables transparent data access to
AS-Interface from PROFIBUS DP.
Exchanging data with the PROFIBUS DP master
PROFIBUS DP masters (DP-V0) can exchange I/O data cycli-
cally with the AS-Interface. DP masters with acyclic services
(DP-V1) are additionally able to initiate AS-Interface master calls
(e.g. reading/writing the AS-i configuration during normal opera-
tion). As such, the DP/AS-i LINK Advanced is particularly well-
suited for a distributed construction and for connection of a
lower-level AS-Interface network.
Single master
For applications with typical volumes of project data, it is suffi-
cient to use the DP/AS-i LINK Advanced in its version as an
AS-Interface single master. The single master can operate up to
248 DI/248 DO, using 62 A/B slaves with 4 DI/4 DO each.
Double master
The AS-Interface double master version of
DP/AS-i LINK Advanced is suitable for applications with large
volumes of data. In this case, twice the volume of project data
can be used on two AS-Interface lines running independently of
each other. The double master can operate up to
496 DI / 496 DO, using two AS-i networks each with 62 A/B
slaves with 4 DI / 4 DO each.
Integration of AS-Interface on PROFIBUS through DP/AS-i LINK Advanced as single/double master
When DP/AS-i LINK Advanced is used
as double master
PG, e.g.
with CP 5621
PC with
SOFTNET-DP
Safe slave with
EMERGENCY
STOP
S7-400
with CP 443-5 Extended
Power
supply
Power
supply
Safe
slave with
EMERGENCY
STOP
Laser
scanner
3RA2 load
feeders
Slave
Slave
PROFIBUS
AS-Interface
AS-Interface
ET 200SP
ET 200pro
DP/AS-i
LINK
Advanced
IK10_40018d
MSS
ASIsafe
MSS
ASIsafe
SIMATIC HMI
S7-300
S7-1500
© Siemens AG 2016