Siemens Simatic S7-1500 / ET 200MP - Electrical Configuration

Wiring
7.4 Electrical configuration
Automation system
158 System Manual, 01/2023, A5E03461182-AK
Note
In general, you need to connect the DC I/O modules of the S7
-1500 automation system/
ET
200MP distributed I/O system to your own distribution (or batter
ies) via an upstream, local
power supply unit. If you connect the DC I/O modules directly to your own distribution, you
need to provide additional protective measures against overvoltages.
7.4 Electrical configuration
Galvanic isolation
With the S7-1500 automation system/ET 200MP distributed I/O system, there is galvanic
isolation between:
• The primary side of the system power supply (PS) and all other circuit components
• The (PROFIBUS/PROFINET) communication interfaces of the CPU/interface module and all
other circuit components
• The load circuits/process electronics and all other circuit parts of the S7-1500/ET 200MP
components
High-frequency interference currents are conducted and electrostatic charges are avoided
through integrated RC combinations or integrated capacitors.