Omron SYSMAC CP CP1E-N@@D@-@ - Manual (Page 276)

2 Instructions
2-240 CP1E CPU Unit Instructions Reference Manual(W483)
FLOATING-POINT MULTIPLY (*F)
Note 1 The results could be zero (including underflows), a numeral, +
∞, or –∞.
ER The Error Flag will be turned ON and the instruction will not be executed.
FLOATING-POINT DIVIDE (/F)
Note 1 The results will be zero for underflows.
2 The results could be zero (including underflows), a numeral, + ∞, or –∞.
ER The Error Flag will be turned ON and the instruction will not be executed.
Multiplicand
Multiplier 0 Numeral + ∞ – ∞ NaN
0 0 0 ER ER
Numeral 0 See note 1. +/– ∞ +/– ∞
+ ∞ ER +/– ∞ + ∞
– ∞
– ∞ ER +/– ∞
– ∞ + ∞
NaN ER
Dividend
Divisor 0 Numeral + ∞ – ∞ NaN
0 ER +/– ∞ + ∞ – ∞
Numeral 0 See note 2. +/– ∞ +/– ∞
+ ∞ 0 0 (See note 1) ER ER
– ∞ 0 0 (See note 1) ER ER
NaN ER