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Chapter 4 Theory of Operation

4.7 Pattern Check Circuit

As described in chapter three, the change of state circuit is replaced with a pattern check circuit for the B type CC92 modules.

The theory of operation for this circuit is the same as described in the previous section for the change of state circuit, except that the B type modules can generate an interrupt when the input pattern matches the defined pattern written into the compare state register.

CC92 - Isolated Digital Input Board - 3 OCT 1996
Copyright © 1996 Compcontrol, Inc.

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