Brochure

SIMATIC ET 200iSP38
Modular, intrinsically safe design
The ET 200iSP is installed in just a few steps:
• The terminal modules are snapped onto the rugged and
well-proven S7-300 standard rail
• Prewiring without electronics modules with spring-loaded
and screw-type terminals
• No need for tools, because the power supply, interface
module and electronics modules are simply plugged in
Safe in the field with the isolating transformer
So that all the advantages
of a failsafe bus installation
are also available with
PROFIBUS DP, an isolating
transformer is used to make
PROFIBUS DP intrinsically
safe. This is done by isolat-
ing the bus and limiting the
energy in the safe area. The
fieldbus isolating trans-
former is used here as a bar-
rier that converts PROFIBUS
DP to an intrinsically safe
PROFIBUS DP. It allows the
PROFIBUS connector to be
disconnected and connect-
ed even under Ex conditions.
The fieldbus isolating transformer offers the following advan-
tages:
• Plug and Play without the need for time-consuming circuit
calculations and certifications (PROFIBUS International
guidelines 2262)
• Simple modification/expansion
• Connection of numerous devices
• Implementation as a barrier or repeater
Modular design of the ET 200iSP
You can find the SIMATIC Selection Tool on the Internet at:
www.siemens.com/et200
as well as in the Industry Mall or the Catalog CA01 on DVD
Fieldbus isolating transformer
Mounting rail
PROFIBUS DP connection
Ex ib intrinsically safe
Terminal module for
interface module
Connecting terminals
EEx ia/ib
Power supply
Ex d-protected
24 V DC or
AC 85 ... 264 V
Interface module
Electronic modules
EEx ib
Terminal modules for
electronic modules
SIMATIC_ET200_ENGLISCH.book Seite 38 Montag, 26. November 2012 10:02 10
© Siemens AG 2012