Technical data
30 SIMATIC ET 200iSP
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 implemented
by separating the bus and
limiting the power in the
safe area. The fieldbus iso-
lating transformer is used
here as a barrier that con-
verts PROFIBUS DP to an in-
trinsically safe PROFIBUS
DP. It allows the PROFIBUS
connector to be disconnected and connected even under Ex
conditions. The fieldbus isolating transformer offers the fol-
lowing advantages:
■ 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
The ET 200iSP Configurator can be found on the Internet
www.siemens.com/et200isp
and also in the Catalog CA01 on DVD/CD-ROM
Fieldbus isolating transformer
Interface module
Electronic modules
EEx ib
Terminal modules for
Electronic modules
Power Supply
Ex d-safe
24V DC
PROFIBUS DP connection
Ex ib intrinsically safe
Terminal module for
interface module
Connection terminal
EEx ia/ib
Mounting rail
Modular design of the ET 200iSP
© Siemens AG 2007