Mitsubishi Electric 700 Series Programming Manual page 174

Execution Conditions
2's complement
execution command
NEG
NEGP
Program Examples
NEG
1) Program which calculates "D10 - D20" when XA turns on, and obtains the absolute
value when the result is negative.
Executed every
scan.
Executed only once.
Application instructions
Executed every
scan.
Executed only once.
3
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