Siemens Simatic ET 200S Operating Instructions Manual page 383

Operating instructions
5.4.8 Wiring the interface module with PROFINET I/O interface (electrical)
Note
Guideline for setting up modules with PROFINET I/O interfaces
You may only operate modules with PROFINET I/O interfaces in LAN networks if all
connected users are equipped with SELV/PELV power supplies (or have equivalent
protection).
For linking up to the WAN a data transfer point is prescribed that guarantees this degree of
safety.
Note
When using a CPU 315-2 PN/DP or CPU 317-2 PN/DP an industrial-quality switch must be
placed directly on the CPU to which the downstream I/O devices must be connected.
10.8.1 Properties of the IM151-3 PN interface module
Restrictions when operating the modules with the IM151-3 PN
The following modules cannot be used with the IM151-3 PN:
2AO U; HIGH FEATURE
2AO I; HIGH FEATURE
1SI serial interface module
Modbus/USS serial interface module
2PULSE
1COUNT 24V/100kHz
(for 6ES7151-3AA00-0AB0)
ET 200S
Product Information, 01/2006, A5E00742496-02
Module up to order number
6ES7135-4LB01-0AB0
6ES7135-4MB01-0AB0
6ES7138-4DF00-0AB0
6ES7138-4DF10-0AB0
6ES7138-4DD00-0AB0
2
up to product status
3
3
4
4
2-1