Specifications

AS-Interface
Network transitions
IE/AS-i LINK PN IO
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Siemens IK PI · 2012
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■ Benefits
• Short start-up times through simple configuration at the press
of a button and testing of the AS-Interface line using the dis-
play or web interface
• Reduction of standstill and servicing times in the event of a
slave failure thanks to user-friendly diagnostics using the dis-
play or web interface
• Costs saved by the double AS-Interface master when large
volumes of project data are involved
• Saves the need for AS-i power pack with AS-i Power24V:
The AS-Interface cable assembly is fed through an existing
24 V DC PELV power pack. For decoupling an AS-i data de-
coupling module is required, see power supply units and data
decoupling modules.
• Standard mode with AS-Interface power supply (see power
supply units and data decoupling modules) possible without
restrictions, whereby no further operating voltage is required
■ Application
The DP/AS-i LINK PN IO is a PROFINET IO device (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 Industrial
Ethernet.
Exchanging data with PROFINET IO controllers
PROFINET IO controllers can exchange I/O data with AS-Inter-
face in cyclic mode and can perform AS-i master calls in addi-
tion with acyclic services (e. g. reading/writing the AS-i configu-
ration during normal operation). As such, the IE/AS-i LINK PN IO
is particularly well suited for a decentral construction and for
connection of a lower-level AS-Interface network.
Single masters
For applications with typical volumes of project data it is suffi-
cient to use the IE/AS-i LINK PN IO in its version as an AS-i single
master. The single master can operate up to 248 DI/248 DO,
using 62 A/B slaves with 4DI/4DO each.
Double masters
For applications with large volumes of project data the
IE/AS-i LINK PN IO in its version as an AS-i double master is
used. In this case, twice the volume of project data can be used
on two AS-i lines running independently of each other. The
double master can operate up to 496 DI/496 DO, using 2 AS-i
networks with 62 A/B slaves each with 4DI/4DO each.
Integration of AS-Interface on PROFINET through IE/AS-i LINK PN IO as single/double master
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