2
Technical Description
2.1
Programmable Controller Design . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Principle of Operation for the Programmable Controller
2.2.1
Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.2
Mode of Operation for the External I/O Bus
EWA 4NEB 812 6120-02b
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2 - 1
2 - 3
2 - 3
2 - 6