Mitsubishi Electric MELSEC FX3U Programming Manual page 521

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
b) In the case of exponent format
b15
S
+1
S
+2
S
+3
S
+4
S
+5
S
+6
S
• When "2BH (+)" is specified as the sign in the floating point format or when the sign is omitted, a character
string is converted into a positive value.
When "2DH (-)" is specified as the sign, a character string is converted into a negative value.
• When "2BH (+)" is specified as the sign in the exponent format or when the sign is omitted, a character
string is converted into a positive exponent.
When "2DH (-)" is specified as the sign, a character string is converted into a negative exponent.
• When "20H (space)" or "30H (0)" exists between numbers except the first "0" in a character string specified
by , "20H" or "30H" is ignored during conversion.
S
b15
20H(space)
S
+1
S
+2
S
+3
S
+4
S
• When "30H (0)" exists between a number and "E" in a character string in the exponent format, "30H" is
ignored during conversion.
b15
20H(space)
2EH(.)
34H(4)
33H(3)
2BH(+)
33H(3)
• A character string can consist of up to 24 characters.
"20H (space)" and "30H (0)" in a character string are counted as one character respectively.
b8 b7
20H(.) 2DH(-)
2EH(.) 31H(1)
35H(5) 33H(3)
33H(3) 30H(0)
31H(1) 34H(4)
45H(E) 32H(2)
30H(0) 2DH(-)
00H 32H(2)
1 3 5 0 3 4 1 2 E
Rounded.
b8 b7
2DH(-)
31H(1) 30H(0)
32H(2) 2EH(.)
31H(1) 33H(3)
00H
0 1 2 3 1
Ignored.
b8 b7 b0
2DH(-)
31H(1)
30H(0)
35H(5)
45H(E)
30H(0)
00H
1 0 4 5 3 E + 0 3
Ignored.
18 Floating Point – FNC110 to FNC139
18.5 FNC117 – EVAL / Character String to Floating Point Conversion
b0
+1
D
−1.35034E−2
Up to 6 digits are
securely equivalent.
Binary floating point
(real number)
0 2
b0
+1
D
−1.231
Binary floating point
(real number)
+1
D D
−1.0453E+3
D
D
11
12
13
14
15
16
17
18
19
20
519