Rack 0:
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Slot 1: Power supply only (for example, 6ES7 307-...) or empty
-
Slot 2: CPU only (for example, 6ES7 314-...)
-
Slot 3: Interface module (for example, 6ES7 360-.../361-...) or empty
-
Slots 4 through 11: Signal or function modules, communications processors, or free.
Racks 1 to 3:
-
Slot 1: Power supply module only (for example, 6ES7 307-...) or empty
-
Slot 2: Free
-
Slot 3: Interface module
-
Slots 4 through 11: Signal or function modules, communications processors (dependent on the inserted interface module), or free.
