Technical data

Active components
4.8 Active components for the link between PROFIBUS (DP slave) and AS-Interface
PROFIBUS Network Manual
System Manual, Edition 04/2009, C79000-G8976-C124-03
105
● Integrated Ethernet port (RJ-45 jack) for convenient startup, diagnostics and testing of the
DP/AS-i LINK Advanced via a Web interface with a standard browser
● Power supplied via the AS-Interface profile cable or alternatively with 24 V DC
● Low mounting depth due to recessed connector assembly
When DP/AS-i LINK Advanced is used
as double master
Safety
monitor
PG e.g.
with CP 5621
S7-300
e.g. with CP 342-5
PC with
SOFTNET-DP
Safe
slave with
EMER STOP
S7-400
with CP 443-5 Extended
6,0$7,&+0,
Power
supply
unit
Power
supply
unit
Safety
monitor
Compact
branch
3RA6
SlaveSafe
slave with
EMER
STOP
Laser
scanner
PROFIBUS
AS-InterfaceAS-Interface
ET 200S
ET 200pro
DP/AS-i
LINK
Advanced
LOGO!
Figure 4-29 Example of a configuration with the DP/AS-i LINK Advanced
Function
The DP/AS-i LINK Advanced allows a PROFIBUS DP master cyclic access to the I/O data of
all slaves of a lower-level AS-Interface segment. In line with the expanded AS-Interface
specification (V3.0), a maximum of 62 slaves - each with 4 digital inputs and 4 digital outputs
- as well as analog slaves, can be connected per AS-Interface line. The extended slave
types according to the AS-i Specification V3.0 with higher I/O data volumes are also
supported.
The DP/AS-i LINK Advanced normally occupies 32 input bytes and 32 output bytes on the
DP master, in which the I/O data of the connected digital AS-Interface slaves of an AS-i line
are stored. The double master occupies twice the number of bytes. The size of the
input/output buffer can be compressed so that only the I/O memory actually required is used
on the DP master system.
Integrated evaluation of analog signals is just as simple as access to digital values; it is
unnecessary to call communications blocks.