Potentials Of The Et 200S With Im151-1; Electrical Design Of The Et 200S - Siemens SIMATIC ET 200S Manual

Wiring and Fitting
5.3

Electrical design of the ET 200S

Isolation between ...
• The load circuits/process and all other circuit components of the ET 200S
• The PROFIBUS DP interface in the IM151-1 interface module and all other
circuit components
• The PROFIBUS DP interface in the IM151-3 PN interface module and all other
circuit components
The following figure shows the potentials of the ET 200S. Only the most important
components are shown.
DP
Electronics,
interface backplane bus
Rail
Isolation
IM 151 1 L+ 1M
Potential I/O
Figure 5-2

Potentials of the ET 200S with IM151-1

5-6
Bus interface Bus interface
Isolation Isolation
Process
electronic
component
s
24 VDC M PE
Electronic
Power
module
module
Potential DP interface
ET 200S backplane bus
Bus interface Bus interface
Isolation Isolation
Process
electronic
component
s
24 VDC M PE
Electronic Power
module
module
Potential logic circuitry
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Bus interface
Isolation
Process
electronic
component
s
Electronic
module