Siemens SIMATIC ET 200AL System Manual page 54

Connecting
5.7 Wiring
Accessories required for the connection of ET-Connection
You need the following accessories:
• ET-Connection cables
• 4-pin M8 connection plug
Note
ET-Connection cables
When connecting ET-Connection use only the offered cables.
Connecting M8 plugs
To connect M8 plugs, proceed as follows:
1. Insert the connector in the appropriate round socket on the module.
2. Tighten the connector using the knurled screw with a torque of 0.4 Nm.
The figure below shows the connection of the M8 plugs, using the example of
the DIQ 4+DQ 4x24VDC/0.5A 8xM8 digital input / digital output module.
Figure 5-9
52
Make sure that there is proper locking between the connector and socket.
Connecting M8 plugs
Distributed I/O system
System Manual, 08/2021, A5E31861578-AJ