Siemens SIMATIC ET 200AL System Manual page 213

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3.2 Pin assignment

ET-Connection/supply voltage

Observe the correct wiring of the M8 sockets for ET-Connection and the supply voltage.

Mixing up the ET-Connection connectors and the connectors for the supply voltage can

destroy the module.

Modules with PROFINET interfaces may only be operated under the following condition:

All connected devices must be equipped with SELV/PELV power supplies.

Interface module IM 157-1 PN (6ES7157-1AB00-0AB0)

Manual, 12/2016, A5E32347036-AD

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