Weidmuller SAI Active Universal Pro Series, Manual

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Connecting the SAI Distributor
5.1 Gateway I/O for PROFIBUS-
DP: SAI-AU M12 PB GW
16DI
PROFIBUS is an universal, open, digital communi-
cation system providing solutions for a wide spec-
trum of applications – first and foremost in produc-
tion and process automation. As well as complex
communications tasks PROFIBUS is a suitable solu-
tion for fast and time-critical applications.
PROFIBUS communication is anchored in the inter-
national standards IEC 61158 and IEC 61784. The
criteria for its use and planning are defined in the
openly accessible guidelines available from the
PROFIBUS User’s Organisation (PNO).
These guidelines fulfil the demands on the part of
the users for multi-vendor and open solutions. That
guarantees the communication between devices of
differing manufactures – without having to make
prior adjustments.
For further information, please visit
www.profibus.com.
Connection
The following section is based on the product series
SAI Active Universal with PROFIBUS connection.
NOTE
Select the bus cable as cable type A in
accordance with IEC 61158. The
PROFIBUS connection is made via a 5-
pole M12 male connector (Bus IN) and a
5-pole M12 female connector (Bus
OUT). Both connections are B-coded.
Use the "Bus In" connection to feed in
signals and "Bus Out" to route these
forward.
In the SAI, male and female connectors are conduc-
tively connected. That enables the PROFIBUS to be
routed from SAI to SAI without the need for drop
lines.
NOTE
It is possible to connect the SAI distribu-
tors by means of a drop line for low
transmission rates up to 1500 kBit/s.
The total length of the drop line must not
exceed 6.6 meters. The drop lines
should be kept as short as possible.
Avoid the use of drop lines for baud
rates greater than 1500 kBit/s.
Module connection from Bus IN
Contact system M12 male connector, 5-pole
Coding B
Pin assignment Pin 1: +5 V DC
Pin 2: Data A (green strand)
connect with Bus-OUT-
Pin 2
Pin 3: GND
Pin 4: Data B (red strand)
connect with Bus-OUT-
Pin 4
Pin 5: Shield
Table 4 Contact assignment for the PROFIBUS
male connector
Module connection from Bus OUT
Contact system M12 female connector, 5-pole
Coding B
Pin assignment Pin 1: +5 V DC
Pin 2: Data A (green strand)
connected to Bus IN,
pin 2
Pin 3: GND
Pin 4: Data B (red strand) con-
nected to Bus IN, pin 4
Pin 5: Shield
Table 5 Contact assignment for the PROFIBUS
female connector
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