Siemens S7 Series - Solution; Overview

2 Solution
Communication with S7 CPU via KNX Gateway
Entry ID: 109739689, V1.0, 06/2017
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 Siemens AG 2017 All rights reserved
2 Solution
2.1 Overview
Diagrammatic representation
Representing all SIMATIC controllers, this solution uses an S7-1200 CPU. The
diagrammatic representation below shows the most important components for
communication between an S7-1200 CPU and a KNX network using the “Triple-
X PROFINET + KNX” universal gateway from MBS GmbH.
Figure 2-1: Block diagram of the solution with the components used
“Triple-X PROFINET+KNX”
universal gateway
PROFINET
KNX devices
S7-1200 CPU
KNX
The “Triple-X PROFINET + KNX” universal gateway enables communication
between an S7-1200 CPU and KNX devices via PROFINET and the KNX bus.
In this example, the KNX devices consist of:
 KNX wall switch triple
 KNX room control unit
 KNX power supply
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Correct communication is verified with the KNX devices and a STEP 7 (TIA Portal)
watch table.
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An external KNX power supply is necessary for operating a KNX network and is no
communication node in the network.