
SIMATIC S7-400
Connection methods
SIMATIC TOP connect for SIMATIC S7-400
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Siemens ST 70 · 2013
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Overview
Wiring of SIMATIC S7 I/O modules with the sensors/actuators is
a significant factor with respect to time/cost overhead, config-
uring, control cabinet installation, procurement and ease of
service.
With SIMATIC TOP connect system cabling, it is simple
and quick to establish a reliable connection for your
SIMATIC S7-300/400.
With the TIA Selection Tool, a mouse click is all that is required
to configure the connection from the SIMATIC S7 module to the
I/O. The program automatically checks for plausibility and
generates a parts list for the selected connection components
that can then be ordered in the Industry Mall.
Further information can be found on the Internet at
www.siemens.com/tia-selection-tool
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Design
The flexible connection lets you quickly connect sensors and
actuators inside the control cabinet with the SIMATIC S7-400.
The flexible connection consists of:
• Front connector with screw-type or crimp connection
• Front connector with fixed single cores
• Single cores also available with UL/CSA-certified cores
The blue wires are numbered sequentially and can be routed
direct to each element in the control cabinet. The numbering of
the single cores corresponds to the coding of the front connector
contacts.
In comparison to conventional single wiring, there is a cost
saving of 50% for assembly, since the single cores that have
already been checked on the connector are fixed.
Thus no complex pre-assembly of up to two times 46 single
cores per module is necessary.
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