Application planning
3.2 Configuration variants with ET-Connection
Distributed I/O system
22 System Manual, 02/2018, A5E31861578-AF
Watch video sequence (https://support.industry.siemens.com/cs/ww/en/view/95886672)
Proceed as follows to put together a multi-tier configuration:
1. Mount the BaseUnit BU-Send directly to the right of the ET 200SP interface module or the
ET 200SP CPU.
2. Then install the other BaseUnits/I/O modules for the ET 200SP distributed I/O system and
the server module.
3. Connect the bus cable for ET-Connection to the BusAdapter BA-Send 1×FC and install it
on the BaseUnit BU-Send.
4. Fasten the BusAdapter BA-Send 1×FC with the BaseUnit BU-Send (1 screw with
tightening torque of 0.2 Nm). Use a screwdriver with a 3 to 3.5 mm blade to do this.
5. Connect the other end of the bus cable for ET-Connection (with M8 connector) to the first
ET 200AL I/O module (socket X30 ET-Connection IN).
6. Connect the supply voltage (24 V DC) to the ET 200AL I/O modules (X80 connector).