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Example - Ladder Diagram

DNEG​


The DNEG instruction negates a DWORD value, D, and saves the result in the same assigned DWORD data register, D.

Ladder Diagram Example​


When the contact, M3.0, is powered ON (1), the value of the data register, D70, -2,020,202,020, is negated.
The value of the negation, 2,020,202,020, is saved in the same data register, D70.


Memory Monitor​

DNEGP​


The DNEGP one-shot instruction negates a DWORD value, D, and saves the result in the same assigned DWORD data register, D.
Every time this instruction executes, it energizes the output only once.

Ladder Diagram Example​


When the contact, M3.1, is powered ON (1), the value of the data register, D75, 987,654,321, is negated.
The value of the negation, -987,654,321, is saved in the same data register, D75.


Memory Monitor​