Pn Gate - Siemens SINAMICS S120 Function Manual

Communication
11.3 Communication via PROFINET IO
11.3.7

PN gate

The "PN GATE FOR SINAMICS" is a PROFINET solution for controller manufacturers or
mechanical equipment manufacturers who wish to simply integrate an interface to a
PROFINET network in their controllers. PROFINET communication is implemented via the
standard Ethernet interface of the controller without the need for a communication module or
an option module.
"PN GATE FOR SINAMICS" enables control devices with a standard Ethernet interface to be
connected isochronously via PROFINET with IRT to SINAMICS S120 and motion control,
robotics or CNC applications to be implemented with SINAMICS S120 drives. In addition to
the SINAMICS S120, other PROFINET devices (drives, distributed I/O, etc.) can be
connected.
The CBE20 in the CU320-2 PN of the SINAMICS S120 contains the "PN Gate" function
(p8835 = 2). The PN Gate represents the controller in the sense of PROFINET. It covers a
standard PROFINET network.
The CBE20 (port 4) is connected via the standard Ethernet interface of the machine control.
The controller supplies the PROFINET controller in the CBE20 with the content required for
all the I/O data cyclically and in a compact form in one or more Ethernet telegrams. For this
purpose, a driver (part of the PN Gate) is used on the controller for the communication with
the CBE20.
The CBE20 then distributes the I/O data to each individual device in the PROFINET network
with one telegram in each case - both IRT and RT telegrams.
Figure 11-36 Schematic diagram of SINAMICS PN Gate
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Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions