GE 90-30/20/Micro manual Operation Input Output Powerflow

E

of this feature of propagating NaNs through functions, you can identify the function where the NaN originated.

Note

For NaN, the ok output is OFF (not energized).

The following table explains when power is or is not passed when dealing with numbers viewed as or equal to infinity. As shown previously, outputs that exceed the positive or negative limits are viewed as POS_INF or NEG_INF respectively.

Operation

Input 1

Input 2

Output

Powerflow

All	Number	Number	Positive or	No
			Negative Infinity
All Except	Infinity	Number	Infinity	Yes
Division
All	Number	Infinity	Infinity	Yes
Division	Infinity	Number	Infinity	No
All	Number	Number	NaN	No

General Case of Power Flow for Floating-Point Operations

GFK-0467K Appendix E Using Floating-Point Numbers E-7