Maintenance
9.1 Replacing modules
Distributed I/O system
System Manual, 02/2018, A5E31861578-AF
79
4. Replace the module.
Note
"New" module
The removed module may only be repla
ced by a module of the same type.
5. Fasten the module with a torque of 1.2 Nm.
6. Connect all cables.
7. Turn the supply voltage on.
Pay attention to the slot number of the module
If you mix up the ET 200AL I/O modules when connecting them, this can cause personal
injury and damage to the machine.
The ET 200AL distributed I/O system cannot distinguish between modules of the same type
during the actual/target comparison.
We recommend that you clearly label the ET 200AL I/O modules with the slot number.
The figure below shows a recommendation for labeling the ET 200AL I/O modules with the
slot number.
Recommendation for labeling the slot number
Figure 9-1 Slot number
The disconnected I/O module and all downstream I/O modules start up again by themselves.