Siemens SIMATIC ET 200AL System Manual page 435

Wiring
3.2 Pin assignment
NOTICE
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.
16
Digital input/digital output module DIQ 4+DQ 4x24VDC/0.5A 8xM8 (6ES7143-5BF00-0BA0)
Equipment Manual, 08/2021, A5E32349882-AD